Difference: ApprovedPlotsSCT (1 vs. 40)

Revision 402012-08-23 - KoichiNagai

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  More details of SCT performance in 2008 can be found at
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 Title: Calibration of Optical Parameters and Overview of Non-Operational Components in the SCT in 2008
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ATL-COM-INDET-2009-038
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 Title: Noise Performance of the ATLAS Semiconductor Tracker in 2008
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ATL-COM-INDET-2009-039
 Title: Lorentz Angle and Cluster Width Studies for the ATLAS SCT
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 Title: SCT noise and leakage current as a function of bias voltage

Revision 392011-04-14 - SteveMcMahon

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Approved SCT Plots (Last Updated 31.11.09)

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  The SCT commissioning and performance plots below are approved to be shown by ATLAS speakers at conferences and similar events.
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In 2008, typically 99% of the barrel (2112 modules) and 97% of the end caps (2x988 modules) were operational. Two cooling loops of end cap C were not working, one due to a leak (on disk 9, affecting 13 modules) and one due to a damaged cable, which was repaired in early 2009 (on disk 1, affecting 23 modules). There were problems with the off-detector optical system sending clock and control signals to modules (TXs), which is why the number of working modules varied during the running period.
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In 2010, typically 99.3% of the total of 4088 were operational. Two cooling loops of end cap C were not working, one due to a leak (on disk 9, affecting 13 modules) and one due to a damaged cable, which was repaired in early 2009 (on disk 1, affecting 23 modules). There were problems with the off-detector optical system sending clock and control signals to modules (TXs), which is why the number of working modules varied during the running period.
  In Summer 2009 all of the optical transmitters (TXs) were replaced. At the end of the summer we have greter than 99% of the SCT modules functional. The losses are due to a single cooling loop in End-Cap-C (13 modules) and assorted HV and LV problems.
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In late 2009 the number of modules out of the physics configuration varies between 29 and 31.
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In 2010 the number of modules out of the physics configuration varies between 29 and 31.
 


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On the right we see the noise occupancy measured in the Barrel and End-Cap Modules. These measurements we made in 2008 at the end of the cosmic ray run after the replacement of some of the dead TX plu-ins. The Noise Occupancy is measured at 150V and is significantly below the TDR specification of 5 x 10-4 (right edge of plot). More details found in ATL-COM-INDET-2009-038 no_occ.02.10.09.gif

 

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On the right we see the noise occupancy measured in the Barrel and End-Cap Modules. These measurements we made in 2008 at the end of the cosmic ray run after the replacement of some of the dead TX plu-ins. The Noise Occupancy is measured at 150V and is significantly below the TDR specification of 5 x 10-4 (right edge of plot). More details found in ATL-COM-INDET-2009-038
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On the right we see the noise occupancy measured in the Barrel and End-Cap Modules. These measurements we made in 2008 at the end of the cosmic ray run after the replacement of some of the dead TX plu-ins. The Noise Occupancy is measured at 150V and is significantly below the TDR specification of 5 x 10-4 (right edge of plot). More details found in ATL-COM-INDET-2009-038.This plot is now considered out of date but is left here for now for historical reasons and for comparisons.
 
no_occ.02.10.09.gif

Revision 382011-04-14 - SteveMcMahon

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On the right we see the noise occupancy measured in the Barrel and End-Cap Modules. These measurements we made in 2008 at the end of the cosmic ray run after the replacement of some of the dead TX plu-ins. The Noise Occupancy is measured at 150V and is significantly below the TDR specification of 5 x 10-4 (right edge of plot). More details found in ATL-COM-INDET-2009-038 no_occ.02.10.09.gif
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The plot shows the distribution of the occupancy for each chip split up for the different parts of the SCT. The results are extracted from the noise occupancy test (run 166544, scan 42, 2010-10-09). At low occupancies the measurement has a higher uncertainty than at high occupancies. The occupancy for modules in the inner endcaps and short modules in the middle endcaps is too low to be reliably determined and is not shown in the plot. The temperatures of the silicon sensors shown on the plot are derived from the measured hybrid temperatures using a correction determined from simulation. Noise occupancy is measured at 150V and is found to be below the TDR specification of 5 x 10^-4 (dashed line). More details can be found in CERN-THESIS-2008-001, ATL-COMINDET- 2009-038.This is the most up to date plot for external presentations. logoccupancy_temp2011
 
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The plot on the right shows the distribution of input noise values for each chip in the different parts of the SCT. The results are extracted from the response curve tests. More details found in ATL-COM-INDET-2009-038
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The plot on the right shows the distribution of input noise values for each chip in the different parts of the SCT. The results are extracted from the response curve tests. More details found in ATL-COM-INDET-2009-038. This plot is now considered out of date but is left here for now for historical reasons and for comparisons.
 
rc_enc.02.10.09.gif
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The distribution of noise measured per chip is shown for the different parts of the SCT. The results are extracted from the response curve test (run 166544, scan 32, 2010-10-09). The temperatures of the silicon sensors shown on the plot are derived from the measured hybrid temperatures using a correction determined from simulation. More details can be found in CERNTHESIS- 2008-001, ATL-COM-INDET-2009-038.This is the most up to date plot for external presentations. enc_temp2011.gif
 
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The distribution of the input noise values obtained in noise occupancy tests versus the same quantity extracted from the response curve tests. More details found in ATL-COM-INDET-2009-038
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The distribution of the input noise values obtained in noise occupancy tests versus the same quantity extracted from the response curve tests. More details found in ATL-COM-INDET-2009-038. This plot is now considered out of date but is left here for now for historical reasons and for comparisons.
 
noise_correlation.gif
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The avergage values and RMS spread of the noise as a function of the hybrid temperature. The values are extracted from the three point gain tests. More details found in ATL-COM-INDET-2009-038 temp_curve.gif
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The distribution of noise measured per chip is shown for the different parts of the SCT. The results are extracted from the noise occupancy test (run 166544, scan 42, 2010-10-09). The temperatures of the silicon sensors shown on the plot are derived from the measured hybrid temperatures using a correction determined from simulation. More details can be found in CERNTHESIS- 2008-001, ATL-COM-INDET-2009-038. This is the most up to date plot for external presentations. noise2d_temp2011.gif
 
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The distribution of the RMS spread of the threshold Vt50 for each chip. The values are extracted from the trim range test which performs a response curve test at an injected charge of 1 fC. Vt50 is the threshold voltage at which the occupancy is 50%. The trim range is the possible reach of the trim settings for the different channels. More details can be found in CERN-THESIS-2008-001, ATL-COM-INDET-2009-038. trimrange_vt50rms_temp2011.gif
The avergage values and RMS spread of the noise as a function of the hybrid temperature. The values are extracted from the three point gain tests. More details found in ATL-COM-INDET-2009-038 temp_curve.gif
 
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Revision 372010-12-06 - ElmarRitsch

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Approved SCT Plots (Last Updated 31.11.09)

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 different operational temperatures. The analysis and data collection are exactly the same as we described in the 2008 note.

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Revision 362010-05-10 - PatrickJussel

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Approved SCT Plots (Last Updated 31.11.09)

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Revision 352010-03-18 - SteveMcMahon

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Revision 342010-03-14 - SteveMcMahon

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Revision 332009-12-05 - SteveMcMahon

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  In Summer 2009 all of the optical transmitters (TXs) were replaced. At the end of the summer we have greter than 99% of the SCT modules functional. The losses are due to a single cooling loop in End-Cap-C (13 modules) and assorted HV and LV problems.
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In late 2009 the number of modules out of the physics configuration varies between 29 and 31.
 
SCT efficiency plots are made for "hits per possible hit", after taking into account known problems. The plot below is for the barrel with a preliminary alignment. The end cap alignment is more difficult than for the barrel with cosmic rays.
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SCTbeamsplash1.png
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Another representation of hits in the SCT endcaps from a beam splash event. Each endcap has nine disks. Space points are made from overlapping strips on the two sides of a module. Two sets of plots are shown for two selected events on run 87764. Top row shows event 179240 and being bottom row event 179242. The average noise from empty events has been subtracted.
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Below we see 5 plots made with splash event data recorded at the start of LHC operation in November 2009.
 
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The left plot shows x-y projection of space points in all eighteen disks. Right plot shows an "r-z" projection, but with the upper and lower parts of the detector projected onto +r and -r respectively. The nine disks are easier to distinguish in the r-z view ("middle" modules are on the opposite side of the disk to "outer" and "inner" modules. Each module type is also staggered in z). The beam splash was hitting the negative z side (C) of the detector.
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The left plot shows r-z projection of space points in all eighteen disks the right plot shows an x-y projection. The nine disks are easier to distinguish in the r-z view ("middle" modules are on the opposite side of the disk to "outer" and "inner" modules. Each module type is also staggered in z). In the next plot (left) we see the 18 individual discs on the C and A sides respectively. We can see the single missing cooling loop on disc 9C. The next plot (right) shows the average time in unts of 25ns measured in the 18 disks either side of z=0. We see that for beam-1 splases (blue) they arrive early on the A side of the detector and are leaving the detector in time on the C side. The opposite picture can be seen for the beam-2 splash events (red) as they arrive early on the C side and leave in time on the A side.
 
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Here we see the occupancy measured in the splash events which get up as hight as 10% in some modules.
 
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The efficiency of the SCT barrel has been measured using cosmic ray
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muons. Here we see the efficiency for data taken over 3 consequive nights with 3 different front end Thresholds
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muons. Here we see the efficiency for data taken over 3 consequive nights with 3 different front end thresholds. The run numbers and thresholds are: 138460 1fc, 138630 1.1fC, 138790 1.2fC.
 
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Revision 322009-12-05 - SteveMcMahon

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The efficiency of the SCT barrel has been measured using cosmic ray muons. Here we see the efficiency for data taken over 3 consequive nights with 3 different front end Thresholds

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The SCT module efficiency as a function of the track chi2
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Revision 312009-11-30 - SteveMcMahon

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Approved SCT Plots (Note Efficiency Plot Updated on 25th September 2009)

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Approved SCT Plots (Last Updated 31.11.09)

 
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  The left plot shows x-y projection of space points in all eighteen disks. Right plot shows an "r-z" projection, but with the upper and lower parts of the detector projected onto +r and -r respectively. The nine disks are easier to distinguish in the r-z view ("middle" modules are on the opposite side of the disk to "outer" and "inner" modules. Each module type is also staggered in z). The beam splash was hitting the negative z side (C) of the detector.
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Some text

occupancy_vs_disk_vs_eta_140370_beam1_prel.30.11.09.gif
 
A typical event passing through the SCT Barrel. This event was recorded in the 2008 comic run. More event pictures can be found on the Approved Plots Page ec_HV.gif
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Revision 302009-11-24 - PatrickJussel

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Approved SCT Plots (Note Efficiency Plot Updated on 25th September 2009)

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Revision 292009-10-02 - SteveMcMahon

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META TOPICPARENT name="ApprovedDetectorPlots"

Approved SCT Plots (Note Efficiency Plot Updated on 25th September 2009)

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The distribution of the input noise values obtained in noise occupancy tests versus the same quantity extracted from the response curve tests. More details found in ATL-COM-INDET-2009-038
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noise_correlation.02.10.09.gif
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noise_correlation.gif
 
Line: 187 to 187
 Title: SCT noise and leakage current as a function of bias voltage
Added:
>
>
September 2009
 A bug in the tracking extrapolation made updates to the module efficiency plot unsafe to show. At the time of writing (September 2009) a bug fix is now available (but not part of the standard release) and a new efficiency plot is uploaded to the page. The plot of the end-cap efficiency although in circulation within the SCT suffers from poor statistics and limited alignment on some discs. The plot begs more questions than it answers and so is removed until we can update with first beam. The drop in the efficiency plot for the barrel seen in barrel-6 is due to just a few modules with low efficiency.
Added:
>
>
October 2009 Note that some new calibration plots are now added to the page. These are the same as the old plots but updated for more recent calibration runs and different operational temperatures. The analysis and data collection are exactly the same as we described in the 2008 note.
 

Links

Revision 282009-10-02 - SteveMcMahon

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META TOPICPARENT name="ApprovedDetectorPlots"

Approved SCT Plots (Note Efficiency Plot Updated on 25th September 2009)

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On the right we see the noise occupancy measured in the Barrel and End-Cap Modules. These measurements we made in 2008 at the end of the cosmic ray run after the replacement of some of the dead TX plu-ins. The Noise Occupancy is measured at 150V and is significantly below the TDR specification of 5 x 10-4 (right edge of plot). More details found in ATL-COM-INDET-2009-038
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noiseocc_010909.gif
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no_occ.02.10.09.gif
 
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On the right we see the noise occupancy measured in the Barrel and End-Cap Modules. These measurements we made in 2008 at the end of the cosmic ray run after the replacement of some of the dead TX plu-ins. The Noise Occupancy is measured at 150V and is significantly below the TDR specification of 5 x 10-4 (right edge of plot). More details found in ATL-COM-INDET-2009-038
Changed:
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<
noiseocc_010909.gif
>
>
no_occ.02.10.09.gif
 

The plot on the right shows the distribution of input noise values for each chip in the different parts of the SCT. The results are extracted from the response curve tests. More details found in ATL-COM-INDET-2009-038
Changed:
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noise_rc_scan_010909.gif
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rc_enc.02.10.09.gif
 

The distribution of the input noise values obtained in noise occupancy tests versus the same quantity extracted from the response curve tests. More details found in ATL-COM-INDET-2009-038
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noise_correlation.gif
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noise_correlation.02.10.09.gif
 
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Revision 272009-09-29 - SteveMcMahon

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META TOPICPARENT name="ApprovedDetectorPlots"

Approved SCT Plots (Note Efficiency Plot Updated on 25th September 2009)

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 Title: SCT noise and leakage current as a function of bias voltage
Changed:
<
<
A bug in the tracking extrapolation made the new efficiency plot unsafe to show. At the time of writing (September 8th 2009) a bug fix is now available and a new efficiency plot is in limited circulation. It is hoped and anticipated that this plot will be available in the next few days and at that time it will be uploaded to this page. All other results have been internally reviewed as part of the process of reading the papers discussed in the test which goes with the plot.
>
>
A bug in the tracking extrapolation made updates to the module efficiency plot unsafe to show. At the time of writing (September 2009) a bug fix is now available (but not part of the standard release) and a new efficiency plot is uploaded to the page. The plot of the end-cap efficiency although in circulation within the SCT suffers from poor statistics and limited alignment on some discs. The plot begs more questions than it answers and so is removed until we can update with first beam. The drop in the efficiency plot for the barrel seen in barrel-6 is due to just a few modules with low efficiency.
 

Links

Revision 262009-09-25 - SteveMcMahon

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Approved SCT Plots (September 2009 text being updated. Await NEW definitve efficiency plot.)

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Approved SCT Plots (Note Efficiency Plot Updated on 25th September 2009)

 
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Changed:
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The unbiased hit efficiency is shown below for each layer of the SCT barrel (left) and End-Caps (right) from cosmic ray tracks.
>
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The unbiased hit efficiency is shown below for each layer of the SCT barrel from cosmic ray tracks.
 Each layer has two sides, and a hit is a cluster with at least one strip hit on one side. The efficiency
Changed:
<
<
is defined for expected hits only, taking into account that a few percent of modules are inactive for known reasons (typically 1% of the barrel and 3% of the end cap). This plot uses a preliminary alignment and a cut on the incidence angle of 40 degrees to the normal. Some modules were off due to optical problems that will be fixed during the 2008-2009 shutdown. Two end cap cooling loops were off, one due to a leak (which will not be fixed), and one due to a damaged cable (which should be repaired for 2009).
>
>
is defined for expected hits only.This efficiency excludes 2% of the modules known to have problems for these runs, most of them temporary configuration errors. A similar figure for the end-cap has been made but suffers from lack of statistics and some unresolved alignment issues.

 
Added:
>
>
The efficiency of the SCT barrel has been measured using cosmic ray muons. The muon tracks were required to have 10 SCT hits, 30 TRT hits and a chi2/DoF below 2. Furthermore their intersection with the modules had to be within 40 degrees of normal incidence, and there had to be a hit of some kind on the track before and after the module being studied. Finally a guard region around the edge of the active silicon was excluded. The silicon efficiency was then found to be 99.75%

The note explaining the analysis is in preparation

 
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The SCT module efficiency as a function of the track chi2 atlas-barrelChi2.25.09.09.gif
 

Added:
>
>
On the right we see the noise occupancy measured in the Barrel and End-Cap Modules. These measurements we made in 2008 at the end of the cosmic ray run after the replacement of some of the dead TX plu-ins. The Noise Occupancy is measured at 150V and is significantly below the TDR specification of 5 x 10-4 (right edge of plot). More details found in ATL-COM-INDET-2009-038 noiseocc_010909.gif

 
Line: 82 to 104
 
Distribution of SCT hits as a function of readout time. The SCT reads out three bunch crossings, and if the detector is correctly timed in, hits should arrive in the middle bin, with some charge also collected in the last bin. The hit pattern for good clusters then looks like 010 or 011. This figure was made using cosmic tracks from run 96906, when the detector was well timed in. The three colours are from different triggers. The plot is made using SCT only track segments, for all hits on tracks in the barrel.
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Revision 252009-09-08 - SteveMcMahon

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Please do not add figures on your own. Contact the SCT project leader in case of questions and/or suggestions.
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Please do not add figures on your own. Contact the SCT project leader in case of questions and/or suggestions.
 

Figures

Line: 45 to 45
 
RUN87764_197242_splash_RZ.gif
Added:
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A typical event passing through the SCT Barrel. This event was recorded in the 2008 comic run. More event pictures can be found on the Approved Plots Page ec_HV.gif
 
The unbiased hit efficiency is shown below for each layer of the SCT barrel (left) and End-Caps (right) from cosmic ray tracks. Each layer has two sides, and a hit is a cluster with at least one strip hit on one side. The efficiency is defined for expected hits only, taking into account that a few percent of modules are inactive for known reasons
Line: 89 to 99
 

Changed:
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The distribution of the input noise values obtained in noise occupancy tests verssu the same quantity extracted from the response curve tests. More details found in ATL-COM-INDET-2009-038
>
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The distribution of the input noise values obtained in noise occupancy tests versus the same quantity extracted from the response curve tests. More details found in ATL-COM-INDET-2009-038
 
noise_correlation.gif

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 Title: SCT noise and leakage current as a function of bias voltage
Changed:
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An update on the efficiency plot await a bug fix.
>
>
A bug in the tracking extrapolation made the new efficiency plot unsafe to show. At the time of writing (September 8th 2009) a bug fix is now available and a new efficiency plot is in limited circulation. It is hoped and anticipated that this plot will be available in the next few days and at that time it will be uploaded to this page. All other results have been internally reviewed as part of the process of reading the papers discussed in the test which goes with the plot.
 

Links

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Revision 242009-09-07 - SteveMcMahon

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Approved SCT Plots (1st September 2009 text being updated)

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Approved SCT Plots (September 2009 text being updated. Await NEW definitve efficiency plot.)

 
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Measurement of mean cluster size vs Incidence angle with 2008 data. The measurement is shown with and without ore details camangetic field. Also shown are the Monte Carlo predictions for the Field On and Field OFF case. More details including the extracted values and souces and sizes of systematic errors can be found in ATL-COM-INDET-2009-039.
>
>
Measurement of mean cluster size vs Incidence angle with 2008 data. The measurements are shown with and without mangetic field. Also shown are the Monte Carlo predictions for the Field On and Field OFF case. The value of the Lorentz angle (sometimes called the Hall Angle) is extracted from the position of the minimum of the field ON data. More details, including the extracted values and souces and sizes of systematic errors, can be found in ATL-COM-INDET-2009-039.
 
ec_fitted125.gif

Revision 232009-09-03 - SteveMcMahon

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  The SCT commissioning and performance plots below are approved to be shown by ATLAS speakers at conferences and similar events.
Changed:
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In 2008, typically 99% of the barrel (2112 modules) and 97% of the end caps (2x988 modules) were operational. Two cooling loops of end cap C were not working, one due to a leak (on disk 9, affecting 13 modules) and one due to a damaged cable, which should be repaired for 2009 (on disk 1, affecting 23 modules). There were problems with the off-detector optical system sending clock and control signals to modules, which is why the number of working modules varied during the running period.
>
>
In 2008, typically 99% of the barrel (2112 modules) and 97% of the end caps (2x988 modules) were operational. Two cooling loops of end cap C were not working, one due to a leak (on disk 9, affecting 13 modules) and one due to a damaged cable, which was repaired in early 2009 (on disk 1, affecting 23 modules). There were problems with the off-detector optical system sending clock and control signals to modules (TXs), which is why the number of working modules varied during the running period.
  In Summer 2009 all of the optical transmitters (TXs) were replaced. At the end of the summer we have greter than 99% of the SCT modules functional. The losses are due to a single cooling loop in End-Cap-C (13 modules) and assorted HV and LV problems.
Line: 82 to 82
 
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More details found in ATL-COM-INDET-2009-038
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The plot on the right shows the distribution of input noise values for each chip in the different parts of the SCT. The results are extracted from the response curve tests. More details found in ATL-COM-INDET-2009-038
 

noise_rc_scan_010909.gif

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More details found in ATL-COM-INDET-2009-038
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noise_correlation.gif

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More details found in ATL-COM-INDET-2009-038
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The avergage values and RMS spread of the noise as a function of the hybrid temperature. The values are extracted from the three point gain tests. More details found in ATL-COM-INDET-2009-038
 
temp_curve.gif

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More details found in ATL-COM-INDET-2009-038
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The distribution of the RMS spread of the threshold Vt50 for each chip. The values are extracted from the response curve tets. More details found in ATL-COM-INDET-2009-038
 
vt50rms_010909.gif
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<
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Below we see the mean cluster size measured in the SCT Barrel (Y-axis) as a function of the incidence angle of the track (X axis) to the surface of the module (local co-ordinate frame). The distribution is shown over the full range of incidence angle on the left and over a limited range around the normal to the module plane on the right. The plots area made for both solenoidal magnetic field ON (run 91900) and solenoidal magnetic field OFF (run 92057) and in the field ON data we see the effect of the Lorentz force acting on the charge carriers in the silicon shifting the value of the minimum towards negative values of incidence angle. The discrepancies in the mean cluster size at large incidence angles are due to a combination of the Lorentz angle and the effect of the charge threshold in the front end electronics. The angle of the minimum value of cluster size in the field ON data gives us the Lorentz angle. The small discrepancy between Data and the Monte Carlo predictions of the Lorentz angle are due to the differences between the assumed temperature of the silicon in the Model and the operational temperaure.
 
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LorentzAngle.fullRange_wMC.3Mar09.gif LorentzAngle.fitted_wMC.3Mar09.gif
 

Measurement of mean cluster size vs Incidence angle with 2008 data. The measurement is shown with and without ore details camangetic field. Also
Changed:
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shown are the Monte Carlo predictions for the Field On and Field OFF case. More details can be found in ATL-COM-INDET-2009-039.
>
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shown are the Monte Carlo predictions for the Field On and Field OFF case. More details including the extracted values and souces and sizes of systematic errors can be found in ATL-COM-INDET-2009-039.
 
ec_fitted125.gif
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Added:
>
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More details of SCT performance in 2008 can be found at
ATL-COM-INDET-2009-037 Title: Calibration of Optical Parameters and Overview of Non-Operational Components in the SCT in 2008
ATL-COM-INDET-2009-038 Title: Noise Performance of the ATLAS Semiconductor Tracker in 2008
ATL-COM-INDET-2009-039 Title: Lorentz Angle and Cluster Width Studies for the ATLAS SCT
ATL-COM-INDET-2009-040 Title: SCT noise and leakage current as a function of bias voltage

An update on the efficiency plot await a bug fix.

 

Links

Revision 222009-09-03 - SteveMcMahon

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META TOPICPARENT name="ApprovedDetectorPlots"

Approved SCT Plots (1st September 2009 text being updated)

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  The SCT commissioning and performance plots below are approved to be shown by ATLAS speakers at conferences and similar events.
Changed:
<
<
In 2008, typically 99% of the barrel (2112 modules) and 97% of the end caps (2x988 modules) were operational. Two cooling loops of end cap C were not working, one due to a leak (on disk 9, affecting 13 modules) and one due to a damaged cable, which should be repaired for 2009 (on disk 1, affecting 23 modules). There were problems with the off-detector optical system sending clock and control signals to modules, which is why the number of working modules varied during the running period. The expectation for 2009 is that >99% of all 4088 modules will be working.
>
>
In 2008, typically 99% of the barrel (2112 modules) and 97% of the end caps (2x988 modules) were operational. Two cooling loops of end cap C were not working, one due to a leak (on disk 9, affecting 13 modules) and one due to a damaged cable, which should be repaired for 2009 (on disk 1, affecting 23 modules). There were problems with the off-detector optical system sending clock and control signals to modules, which is why the number of working modules varied during the running period.

In Summer 2009 all of the optical transmitters (TXs) were replaced. At the end of the summer we have greter than 99% of the SCT modules functional. The losses are due to a single cooling loop in End-Cap-C (13 modules) and assorted HV and LV problems.


 SCT efficiency plots are made for "hits per possible hit", after taking into account known problems. The plot below is for the barrel with a preliminary alignment. The end cap alignment is more difficult than for the barrel with cosmic rays.
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Event display showing activity in the SCT endcaps in a beam splash event. The SCT barrel was switched off, and the endcaps were operating at reduced bias voltage (20V). Nontheless, many hits were seen in the endcap disks.
>
>
Event display showing activity in the SCT endcaps in a beam splash events on 10th September 2008. The SCT barrel was switched off, and the endcaps were operating at reduced bias voltage (20V). Nontheless, many hits were seen in the endcap disks.
 
SCTbeamsplash1.png

Revision 212009-09-02 - SteveMcMahon

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META TOPICPARENT name="ApprovedDetectorPlots"

Approved SCT Plots (1st September 2009 text being updated)

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More details found in ATL-COM-INDET-2009-038
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noise_correlation.gif

More details found in ATL-COM-INDET-2009-038 temp_curve.gif

More details found in ATL-COM-INDET-2009-038
 
vt50rms_010909.gif
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META FILEATTACHMENT attachment="SCT.SCTEA.eff.summaryeffp.3Mar09.gif" attr="" comment="" date="1236184819" name="SCT.SCTEA.eff.summaryeffp.3Mar09.gif" path="SCT.SCTEA.eff.summaryeffp.3Mar09.gif" size="10066" stream="SCT.SCTEA.eff.summaryeffp.3Mar09.gif" user="Main.SteveMcMahon" version="1"
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META FILEATTACHMENT attachment="noise_rc_scan_010909.gif" attr="" comment="" date="1251784702" name="noise_rc_scan_010909.gif" path="noise_rc_scan_010909.gif" size="28169" stream="noise_rc_scan_010909.gif" tmpFilename="/usr/tmp/CGItemp40118" user="mcmahon" version="1"
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META FILEATTACHMENT attachment="ec_fitted125_noMC.png" attr="" comment="" date="1251785272" name="ec_fitted125_noMC.png" path="ec_fitted125_noMC.png" size="39386" stream="ec_fitted125_noMC.png" tmpFilename="/usr/tmp/CGItemp36360" user="mcmahon" version="1"
META FILEATTACHMENT attachment="ec_HV.png" attr="" comment="" date="1251785282" name="ec_HV.png" path="ec_HV.png" size="132747" stream="ec_HV.png" tmpFilename="/usr/tmp/CGItemp36244" user="mcmahon" version="1"
META FILEATTACHMENT attachment="ec_T.png" attr="" comment="" date="1251785291" name="ec_T.png" path="ec_T.png" size="87050" stream="ec_T.png" tmpFilename="/usr/tmp/CGItemp36346" user="mcmahon" version="1"
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META FILEATTACHMENT attachment="noise_correlation.gif" attr="" comment="" date="1251893559" name="noise_correlation.gif" path="noise_correlation.gif" size="27485" stream="noise_correlation.gif" tmpFilename="/usr/tmp/CGItemp53848" user="mcmahon" version="1"
META FILEATTACHMENT attachment="temp_curve.gif" attr="" comment="" date="1251893747" name="temp_curve.gif" path="temp_curve.gif" size="16780" stream="temp_curve.gif" tmpFilename="/usr/tmp/CGItemp53839" user="mcmahon" version="1"

Revision 202009-09-01 - SteveMcMahon

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META TOPICPARENT name="ApprovedDetectorPlots"

Approved SCT Plots (1st September 2009 text being updated)

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In 2008, typically 99% of the barrel (2112 modules) and 97% of the end caps (2x988 modules) were operational. Two cooling loops of end cap C were not working, one due to a leak (on disk 9, affecting 13 modules) and one due to a damaged cable, which should be repaired for 2009 (on disk 1, affecting 23 modules). There were problems with the off-detector optical system sending clock and control signals to modules, which is why the number of working modules varied during the running period. The expectation for 2009 is that >99% of all 4088 modules will be working.
SCT efficiency plots are made for "hits per possible hit", after taking into account known problems. The plot below is for the barrel with a preliminary alignment. The end cap alignment is more difficult than for the barrel with cosmic rays.
Added:
>
>

More details of the calibrations and dead channels in 2008 can be found in ATL-COM-INDET-2009-037.

 

Please do not add figures on your own. Contact the SCT project leader in case of questions and/or suggestions.

Line: 67 to 71
 
Changed:
<
<
On the right we see the noise occupancy measured in the Barrel and End-Cap Modules. These measurements we made in 2008 at the end of the cosmic ray run after the replacement of some of the dead TX plu-ins. The Noise Occupancy is measured at 150V and is significantly below the TDR specification of 5 x 10-4 (right edge of plot)
>
>
On the right we see the noise occupancy measured in the Barrel and End-Cap Modules. These measurements we made in 2008 at the end of the cosmic ray run after the replacement of some of the dead TX plu-ins. The Noise Occupancy is measured at 150V and is significantly below the TDR specification of 5 x 10-4 (right edge of plot). More details found in ATL-COM-INDET-2009-038
 

noiseocc_010909.gif

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Text Goes Here
>
>
More details found in ATL-COM-INDET-2009-038
 

noise_rc_scan_010909.gif

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Text Goes Here
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More details found in ATL-COM-INDET-2009-038
 
vt50rms_010909.gif
Line: 102 to 106
 

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Measurement of mean cluster size vs Incidence angle with 2008 data. The measurement is shown with and without mangetic field. Also shown are the Monte Carlo predictions for the Field On and Field OFF case.
>
>
Measurement of mean cluster size vs Incidence angle with 2008 data. The measurement is shown with and without ore details camangetic field. Also shown are the Monte Carlo predictions for the Field On and Field OFF case. More details can be found in ATL-COM-INDET-2009-039.
 

ec_fitted125.gif
Changed:
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<
Measurement of mean cluster size vs Incidence angle with 2008 data. The measurement is shown with and without mangetic field.
>
>
Measurement of mean cluster size vs Incidence angle with 2008 data. The measurement is shown with and without mangetic field.More details can be found in ATL-COM-INDET-2009-039.
 

ec_fitted125.gif_noMC
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<
Various measurements of the Lorentz angle made as a function of B-Field. Measurements made with SCT modules.
>
>
Various measurements of the Lorentz angle made as a function of B-Field. Measurements made with SCT modules.More details can be found in ATL-COM-INDET-2009-039.
 

ec_B.gif
Changed:
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Prediction of Lorentz angle as a function of HV and Temperture. Also shown is the Measurement.
>
>
Prediction of Lorentz angle as a function of HV and Temperture. Also shown is the Measurement.More details can be found in ATL-COM-INDET-2009-039.
 
ec_HV.gif

Revision 192009-09-01 - SteveMcMahon

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META TOPICPARENT name="ApprovedDetectorPlots"
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Approved SCT Plots

>
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Approved SCT Plots (1st September 2009 text being updated)

 
<!--optional-->
Line: 67 to 67
 
Changed:
<
<
On the right we see the noise occupancy measured in the Barrel and End-Cap Modules. These measurements we made in December 2008 at the end of the cosmic ray run after the replacement of some of the dead TX plu-ins. The Noise Occupancy is measured at 150V and is significantly below the TDR specification of 5 x 10-4 (right edge of plot)
>
>
On the right we see the noise occupancy measured in the Barrel and End-Cap Modules. These measurements we made in 2008 at the end of the cosmic ray run after the replacement of some of the dead TX plu-ins. The Noise Occupancy is measured at 150V and is significantly below the TDR specification of 5 x 10-4 (right edge of plot)
 

noiseocc_010909.gif

Added:
>
>

Text Goes Here noise_rc_scan_010909.gif

Text Goes Here vt50rms_010909.gif
 
Below we see the mean cluster size measured in the SCT Barrel (Y-axis) as a function of the incidence angle of the track (X axis) to the surface of the module (local co-ordinate frame). The distribution is shown over the full range of incidence angle on the left and over a limited range around the normal to the module plane on the right. The plots area made for both solenoidal magnetic field ON (run 91900) and solenoidal magnetic field OFF (run 92057) and in the field ON data we see the effect of the Lorentz force acting on the charge carriers in the silicon shifting the value of the minimum towards negative values of incidence angle. The discrepancies in the mean cluster size at large incidence angles are due to a combination of the Lorentz angle and the effect of the charge threshold in the front end electronics. The angle of the minimum value of cluster size in the field ON data gives us the Lorentz angle. The small discrepancy between Data and the Monte Carlo predictions of the Lorentz angle are due to the differences between the assumed temperature of the silicon in the Model and the operational temperaure.
Line: 86 to 99
 
Added:
>
>

Measurement of mean cluster size vs Incidence angle with 2008 data. The measurement is shown with and without mangetic field. Also shown are the Monte Carlo predictions for the Field On and Field OFF case. ec_fitted125.gif
Measurement of mean cluster size vs Incidence angle with 2008 data. The measurement is shown with and without mangetic field. ec_fitted125.gif_noMC
Various measurements of the Lorentz angle made as a function of B-Field. Measurements made with SCT modules. ec_B.gif
Prediction of Lorentz angle as a function of HV and Temperture. Also shown is the Measurement. ec_HV.gif
 

Links

Revision 182009-09-01 - SteveMcMahon

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META TOPICPARENT name="ApprovedDetectorPlots"

Approved SCT Plots

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On the right we see the noise occupancy measured in the Barrel and End-Cap Modules. These measurements we made in December 2008 at the end of the cosmic ray run after the replacement of some of the dead TX plu-ins. The Noise Occupancy is measured at 150V and is significantly below the TDR specification of 5 x 10-4 (right edge of plot)
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NoisePlot_3_3_9.2.gif
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META FILEATTACHMENT attachment="noise_rc_scan_010909.eps" attr="" comment="" date="1251784665" name="noise_rc_scan_010909.eps" path="noise_rc_scan_010909.eps" size="19091" stream="noise_rc_scan_010909.eps" tmpFilename="/usr/tmp/CGItemp35368" user="mcmahon" version="1"
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Revision 172009-06-16 - SteveMcMahon

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META TOPICPARENT name="ApprovedDetectorPlots"

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Revision 162009-03-04 - SteveMcMahon

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META TOPICPARENT name="ApprovedDetectorPlots"

Approved SCT Plots

Line: 68 to 68
 
On the right we see the noise occupancy measured in the Barrel and End-Cap Modules. These measurements we made in December 2008 at the end of the cosmic ray run after the replacement of some of the dead TX plu-ins. The Noise Occupancy is measured at 150V and is significantly below the TDR specification of 5 x 10-4 (right edge of plot)
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NoisePlot_3_3_9.gif
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NoisePlot_3_3_9.2.gif
 
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Revision 152009-03-04 - SteveMcMahon

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META TOPICPARENT name="ApprovedDetectorPlots"

Approved SCT Plots

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 SCT efficiency plots are made for "hits per possible hit", after taking into account known problems. The plot below is for the barrel with a preliminary alignment. The end cap alignment is more difficult than for the barrel with cosmic rays.
Changed:
<
<
Please do not add figures on your own. Contact the SCT project leader in case of questions and/or suggestions.
>
>
Please do not add figures on your own. Contact the SCT project leader in case of questions and/or suggestions.
 

Figures

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RUN87764_197242_splash_RZ.gif
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The unbiased hit efficiency for each layer of the SCT barrel from cosmic ray tracks.
>
>
The unbiased hit efficiency is shown below for each layer of the SCT barrel (left) and End-Caps (right) from cosmic ray tracks.
 Each layer has two sides, and a hit is a cluster with at least one strip hit on one side. The efficiency is defined for expected hits only, taking into account that a few percent of modules are inactive for known reasons
Changed:
<
<
(typically 1% of the barrel and 3% of the end cap). This plot uses a preliminary alignment. Some modules were off due to
>
>
(typically 1% of the barrel and 3% of the end cap). This plot uses a preliminary alignment and a cut on the incidence angle of 40 degrees to the normal. Some modules were off due to
 optical problems that will be fixed during the 2008-2009 shutdown. Two end cap cooling loops were off, one due to a leak (which will not be fixed), and one due to a damaged cable (which should be repaired for 2009).
Added:
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Barrel_Efficiency.gif
>
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SCT.SCTB.eff.summaryeff.3Mar09.gif
SCT.SCTEA.eff.summaryeffp.3Mar09.gif
 
Added:
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Distribution of SCT hits as a function of readout time. The SCT reads out three bunch crossings, and if the detector is correctly timed in, hits should arrive in the middle bin, with some charge also collected in the last bin. The hit pattern for good clusters then looks like 010 or 011. This figure was made using cosmic tracks from run 96906, when the detector was well timed in. The three colours are from different triggers. The plot is made using SCT only track segments, for all hits on tracks in the barrel.
Line: 53 to 66
 Publictbin_96906.gif
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On the right we see the noise occupancy measured in the Barrel and End-Cap Modules. These measurements we made in December 2008 at the end of the cosmic ray run after the replacement of some of the dead TX plu-ins. The Noise Occupancy is measured at 150V and is significantly below the TDR specification of 5 x 10-4 (right edge of plot) NoisePlot_3_3_9.gif
Below we see the mean cluster size measured in the SCT Barrel (Y-axis) as a function of the incidence angle of the track (X axis) to the surface of the module (local co-ordinate frame). The distribution is shown over the full range of incidence angle on the left and over a limited range around the normal to the module plane on the right. The plots area made for both solenoidal magnetic field ON (run 91900) and solenoidal magnetic field OFF (run 92057) and in the field ON data we see the effect of the Lorentz force acting on the charge carriers in the silicon shifting the value of the minimum towards negative values of incidence angle. The discrepancies in the mean cluster size at large incidence angles are due to a combination of the Lorentz angle and the effect of the charge threshold in the front end electronics. The angle of the minimum value of cluster size in the field ON data gives us the Lorentz angle. The small discrepancy between Data and the Monte Carlo predictions of the Lorentz angle are due to the differences between the assumed temperature of the silicon in the Model and the operational temperaure.
LorentzAngle.fullRange_wMC.3Mar09.gif LorentzAngle.fitted_wMC.3Mar09.gif
 

Links

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META FILEATTACHMENT attachment="NoisePlot_3_3_9.gif" attr="" comment="" date="1236183342" name="NoisePlot_3_3_9.gif" path="NoisePlot_3_3_9.gif" size="8941" stream="NoisePlot_3_3_9.gif" user="Main.SteveMcMahon" version="1"
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META FILEATTACHMENT attachment="SCT.SCTEA.eff.summaryeffp.3Mar09.gif" attr="" comment="" date="1236184819" name="SCT.SCTEA.eff.summaryeffp.3Mar09.gif" path="SCT.SCTEA.eff.summaryeffp.3Mar09.gif" size="10066" stream="SCT.SCTEA.eff.summaryeffp.3Mar09.gif" user="Main.SteveMcMahon" version="1"

Revision 142009-03-03 - JoseEnriqueGarcia

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Revision 132009-02-27 - PippaWells

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Distribution of SCT hits as a function of readout time. The SCT reads out three bunch crossings, and if the detector is correctly timed in, hits should arrive in the middle bin, with some charge also collected in the last bin. The hit pattern for good clusters then looks like 010 or 011.
Changed:
<
<
This figure was made using cosmic tracks from run 96906, when the detector was well timed in. The three colours are from different triggers.
>
>
This figure was made using cosmic tracks from run 96906, when the detector was well timed in. The three colours are from different triggers. The plot is made using SCT only track segments, for all hits on tracks in the barrel.
 
Publictbin_96906.gif

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 Barrel_Efficiency.gif
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>
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Distribution of SCT hits as a function of readout time. The SCT reads out three bunch crossings, and if the detector is correctly timed in, hits should arrive in the middle bin, with some charge also collected in the last bin. The hit pattern for good clusters then looks like 010 or 011. This figure was made using cosmic tracks from run 96906, when the detector was well timed in. The three colours are from different triggers. Publictbin_96906.gif
 

Links

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Revision 112009-02-05 - PippaWells

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Introduction

The SCT commissioning and performance plots below are approved to be shown by ATLAS speakers at conferences and similar events.

Added:
>
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In 2008, typically 99% of the barrel (2112 modules) and 97% of the end caps (2x988 modules) were operational. Two cooling loops of end cap C were not working, one due to a leak (on disk 9, affecting 13 modules) and one due to a damaged cable, which should be repaired for 2009 (on disk 1, affecting 23 modules). There were problems with the off-detector optical system sending clock and control signals to modules, which is why the number of working modules varied during the running period. The expectation for 2009 is that >99% of all 4088 modules will be working.
SCT efficiency plots are made for "hits per possible hit", after taking into account known problems. The plot below is for the barrel with a preliminary alignment. The end cap alignment is more difficult than for the barrel with cosmic rays.
  Please do not add figures on your own. Contact the SCT project leader in case of questions and/or suggestions.
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SCTbeamsplash1.png
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<
Another representation of hits in the SCT endcaps from a beam splash event. Each endcap has nine disks. Space points are made from overlapping strips on the two sides of a module. Two sets of plots are shown for two selected events on run 87764. Top row shows event 179240 and being bottom row event 179242.
>
>
Another representation of hits in the SCT endcaps from a beam splash event. Each endcap has nine disks. Space points are made from overlapping strips on the two sides of a module. Two sets of plots are shown for two selected events on run 87764. Top row shows event 179240 and being bottom row event 179242. The average noise from empty events has been subtracted.
  The left plot shows x-y projection of space points in all eighteen disks. Right plot shows an "r-z" projection, but with the upper and lower parts of the detector projected onto +r and -r respectively. The nine disks are easier to distinguish in the r-z view ("middle" modules are on the opposite side of the disk to "outer" and "inner" modules. Each module type is also staggered in z). The beam splash was hitting the negative z side (C) of the detector.
RUN87764_197240_splash_XY.gif
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RUN87764_197242_splash_XY.gif
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RUN87764_197242_splash_RZ.gif
 
The unbiased hit efficiency for each layer of the SCT barrel from cosmic ray tracks. Each layer has two sides, and a hit is a cluster with at least one strip hit on one side. The efficiency is defined for expected hits only, taking into account that a few percent of modules are inactive for known reasons
Changed:
<
<
such as optical problems that will be fixed during the 2008-2009 shutdown.
>
>
(typically 1% of the barrel and 3% of the end cap). This plot uses a preliminary alignment. Some modules were off due to optical problems that will be fixed during the 2008-2009 shutdown. Two end cap cooling loops were off, one due to a leak (which will not be fixed), and one due to a damaged cable (which should be repaired for 2009).
 
Barrel_Efficiency.gif

Revision 102009-02-05 - PippaWells

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  The left plot shows x-y projection of space points in all eighteen disks. Right plot shows an "r-z" projection, but with the upper and lower parts of the detector projected onto +r and -r respectively. The nine disks are easier to distinguish in the r-z view ("middle" modules are on the opposite side of the disk to "outer" and "inner" modules. Each module type is also staggered in z). The beam splash was hitting the negative z side (C) of the detector.
Changed:
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RUN87764_197240_splash_XY.gif
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RUN87764_197240_splash_XY.gif
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RUN87764_197242_splash_XY.gif
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The unbiased hit efficiency for each layer of the SCT barrel from cosmic ray tracks.
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Revision 92009-02-04 - JoseEnriqueGarcia

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SCTbeamsplash1.png
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Another representation of hits in the SCT endcaps from a beam splash event. Each endcap has nine disks. Space points are made from overlapping strips on the two sides of a module. The uppermost plot shows the x-y position of space points in all eighteen disks. The next plot is a y-z projection. The lowest plot is an "r-z" projection, but with the upper and lower parts of the detector projected onto +r and -r respectively. The nine disks are easier to distinguish in the r-z view ("middle" modules are on the opposite side of the disk to "outer" and "inner" modules. Each module type is also staggered in z). The beam splash was hitting the negative z side (C) of the detector. RUN87764_197240_splash_xy.gif
RUN87764_197240_splash_YZ.gif
RUN87764_197240_splash_RZ.gif
>
>
Another representation of hits in the SCT endcaps from a beam splash event. Each endcap has nine disks. Space points are made from overlapping strips on the two sides of a module. Two sets of plots are shown for two selected events on run 87764. Top row shows event 179240 and being bottom row event 179242.

The left plot shows x-y projection of space points in all eighteen disks. Right plot shows an "r-z" projection, but with the upper and lower parts of the detector projected onto +r and -r respectively. The nine disks are easier to distinguish in the r-z view ("middle" modules are on the opposite side of the disk to "outer" and "inner" modules. Each module type is also staggered in z). The beam splash was hitting the negative z side (C) of the detector.

RUN87764_197240_splash_XY.gif RUN87764_197240_splash_RZ.gif
RUN87764_197242_splash_XY.gif RUN87764_197242_splash_RZ.gif
 
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The unbiased hit efficiency for each layer of the SCT barrel from cosmic ray tracks. Each layer has two sides, and a hit is a cluster with at least one strip hit on one side. The efficiency is defined for expected hits only, taking into account that a few percent of modules are inactive for known reasons
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META FILEATTACHMENT attachment="SCTbeamsplash1.png" attr="" comment="" date="1227174071" name="SCTbeamsplash1.png" path="SCTbeamsplash1.png" size="468509" stream="SCTbeamsplash1.png" user="Main.PippaWells" version="1"
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SCTbeamsplash1.png
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Another representation of hits in the SCT endcaps from a beam splash event. Each endcap has nine disks. Space points are made from overlapping strips on the two sides of a module. The upper plot shows the x-y position of space points in all eighteen disks. The next plot is a y-z projection. (Some disks fall in the same z bin). The lower plot is an "r-z" projection, but with the upper and lower parts of the detector projected onto +r and -r respectively.
>
>
Another representation of hits in the SCT endcaps from a beam splash event. Each endcap has nine disks. Space points are made from overlapping strips on the two sides of a module. The uppermost plot shows the x-y position of space points in all eighteen disks. The next plot is a y-z projection. The lowest plot is an "r-z" projection, but with the upper and lower parts of the detector projected onto +r and -r respectively. The nine disks are easier to distinguish in the r-z view ("middle" modules are on the opposite side of the disk to "outer" and "inner" modules. Each module type is also staggered in z). The beam splash was hitting the negative z side (C) of the detector.
 
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SCTbeamsplash1.png
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Another representation of hits in the SCT endcaps from a beam splash event. Each endcap has nine disks. Space points are made from overlapping strips on the two sides of a module. The upper plot shows the x-y position of space points in all eighteen disks, and the lower plot is a y-z projection. (Some disks fall in the same z bin).
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Another representation of hits in the SCT endcaps from a beam splash event. Each endcap has nine disks. Space points are made from overlapping strips on the two sides of a module. The upper plot shows the x-y position of space points in all eighteen disks. The next plot is a y-z projection. (Some disks fall in the same z bin). The lower plot is an "r-z" projection, but with the upper and lower parts of the detector projected onto +r and -r respectively.
 
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The unbiased hit efficiency for each layer of the SCT barrel from cosmic ray tracks.
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META FILEATTACHMENT attachment="SCTbeamsplash1.png" attr="" comment="" date="1227174071" name="SCTbeamsplash1.png" path="SCTbeamsplash1.png" size="468509" stream="SCTbeamsplash1.png" user="Main.PippaWells" version="1"
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META FILEATTACHMENT attachment="RUN87764_197240_splash_yz.gif" attr="" comment="" date="1227174208" name="RUN87764_197240_splash_yz.gif" path="RUN87764_197240_splash_yz.gif" size="23301" stream="RUN87764_197240_splash_yz.gif" user="Main.PippaWells" version="1"
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META FILEATTACHMENT attachment="RUN87764_197240_splash_RZ.gif" attr="" comment="" date="1231249558" name="RUN87764_197240_splash_RZ.gif" path="RUN87764_197240_splash_RZ.gif" size="16729" stream="RUN87764_197240_splash_RZ.gif" user="Main.PippaWells" version="1"
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Revision 62008-11-28 - PippaWells

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The unbiased hit efficiency for each layer of the SCT barrel from cosmic ray tracks.
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Each layer has two sides, and a hit is a cluster with at least one strip hit on one side.
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Each layer has two sides, and a hit is a cluster with at least one strip hit on one side. The efficiency is defined for expected hits only, taking into account that a few percent of modules are inactive for known reasons such as optical problems that will be fixed during the 2008-2009 shutdown.
 
Barrel_Efficiency.gif

Revision 52008-11-20 - PippaWells

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  The SCT commissioning and performance plots below are approved to be shown by ATLAS speakers at conferences and similar events.
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Event display showing activity in the SCT endcaps in a beam splash event. The SCT barrel was switched off, and the endcaps were operating at reduced bias voltage (20V). Nontheless, many hits were seen in the endcap disks.
 
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SCTbeamsplash1.png
 
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Another representation of hits in the SCT endcaps from a beam splash event. Each endcap has nine disks. Space points are made from overlapping strips on the two sides of a module. The upper plot shows the x-y position of space points in all eighteen disks, and the lower plot is a y-z projection. (Some disks fall in the same z bin).
 
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The unbiased hit efficiency for each layer of the SCT barrel from cosmic ray tracks. Each layer has two sides, and a hit is a cluster with at least one strip hit on one side.
 
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META FILEATTACHMENT attachment="SCTbeamsplash1.png" attr="" comment="" date="1227174071" name="SCTbeamsplash1.png" path="SCTbeamsplash1.png" size="468509" stream="SCTbeamsplash1.png" user="Main.PippaWells" version="1"
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Revision 42008-11-15 - HelenHayward

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Figure description ... [the figure]
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Revision 32008-10-08 - StephenHaywood

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Revision 22008-10-01 - AndreasHoecker

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Major updates:
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Revision 12008-10-01 - AndreasHoecker

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Introduction

The SCT commissioning and performance plots below are approved to be shown by ATLAS speakers at conferences and similar events.

Please do not add figures on your own. Contact the SCT project leader in case of questions and/or suggestions.

Figures

Figure description [the figure]
Figure description [the figure]

Links

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<!--For significant updates to the topic, consider adding your 'signature' (beneath this editing box)-->
Major updates:
-- PippaWells - 29 Sep 2008

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The creator's name will be added by default, but this can be replaced if appropriate.
Put the name first, without dashes.-->
Responsible: PippaWells
<!--Once this page has been reviewed, please add the name and the date e.g. StephenHaywood - 31 Oct 2006 -->
Last reviewed by: Never reviewed
 
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