Halo Registry Page

Documentation

Darin Acosta...Physicist, Teacher, and BLOGGER

http://cmsdoc.cern.ch/cms/performance/FirstBeam/cms-e-commentary09.htm

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Halo Trigger Tunes from MC

The following plots display the MC evaluation of the Halo Triggers main extrapolation parameters (a cut on minimum and maximum from stations 1 to 2 and 1 to 3).
Arrow blue right Show Plots Hide Plots
MC21.png
MC31.png
MC211.png
MC311.png

Halo Occupancy From Splash

These plots are an example of halo trigger occupancy from the beam splash events 120020 which happened one week before the beam capture attempts. N.b., occupancy is much high for these events than expected, but non the less interesting:
Arrow blue right Show Plots Hide Plots
SpBxn.png
TotOcc.png
MepOcc.png
MemOcc.png

Run Registry List

Official Run Registry can be viewed here
Data locations:
/castor/cern.ch/cms/store/streamer/CSC/Local2009/000/121/xxx
/castor/cern.ch/cms/store/express/BeamCommissioning09/BeamHaloExpress/FEVT/v1/000/120
/castor/cern.ch/cms/store/express/BeamCommissioning09/ExpressPhysics/FEVT/v2/000/121/

Run Number Beam Energy BXN B Field CSC good ECAL good HCAL good Day Starting Time Duration Comment
121943 Beam 1 450 Gev 298 & 342 0 Tesla Yes Yes Yes F: 20th Nov 2009   2 hours First Beam Capture Attempts, a few splash, low statistics.
121949 Beam 1 450 Gev ??? 0 Tesla Yes Yes Yes F: 20th Nov 2009   1 hour Beam 1. CSC HV in Standby.
121960 Beam 1 450 Gev ??? 0 Tesla Yes Yes Yes F: 20th Nov 2009   30 mins Beam 1. CSC HV in Standby.
121962 Beam 1 450 Gev ??? 0 Tesla Yes Yes Yes F: 20th Nov 2009   30 mins Beam 1. CSC HV in Standby.
121964 Beam 2 450 Gev 2607 0 Tesla Yes Yes Yes F: 20th Nov 2009   2 hours Beam 2, few splashes followed by captured beam. Towards the end of the run CSC turned on the HV for the outer chambers: ~82 halo events in this run, very sharp in time (94% in one BXN, 2607)
121993 Beam 1 450 Gev ??? 0 Tesla Yes Yes Yes S: 21st Nov 2009   1hour 30 mins Beam 1. CSC HV in Standby. Several splashes: 56 according to CSC elog
122023 Beam 1 450 Gev ??? 0 Tesla Yes Yes Yes S: 21st Nov 2009   12 hours Beam 1 circulating
122045 Beam 1 450 Gev ??? 0 Tesla Yes Yes Yes Su: 22nd Nov 2009   6 hours Beam 1 circulating. Very Low beam intensity: BSC had 0 Hz rate and CSCTF 0.5 Hz, which is the baseline for cosmics
122135 Beam 2 450 Gev 2647 0 Tesla Yes Yes Yes Su: 22nd Nov 2009   ~30 mins Beam 2 circulating. CSC in standby. This run is interesting because all of a sudden CSCTF triggered on beam halo at 6 Hz, well above the cosmics baseline
122294 Beam 1 AND Beam 2 450 Gev 88 0 Tesla Yes Yes Yes Mo: 23th Nov 2009 12:49:43 1 hour and 30 mins Two beams circulating at the same time. CSC HV ON for the first part, then STANDBY, then again ON. Refer to the rate plot.
122314 Collisions 450 Gev ??? 0 Tesla Yes Yes Yes Mo: 23th Nov 2009 ~20.00 30 mins CSC HV ON
123151 Collisions 450 Gev ??? 3.8 Tesla Yes Yes Yes --- --- --- CSC HV ON
123592 Collisions 450 Gev ??? 3.8 Tesla Yes Yes Yes Su:06th Dec 2009 03:54:55 20 mins CSC HV ON
123596 Collisions 450 Gev ??? 3.8 Tesla Yes Yes Yes Su:06th Dec 2009 06:05:17 ~4 hous CSC HV ON
123615 Collisions 450 Gev ??? 3.8 Tesla Yes Yes Yes Su:06th Dec 2009 19:44:55 2 hours and 30 mins CSC HV ON

NOTE: Runs 122293 and 122294 are the first working attempt to run 2 beams together in the LHC. They did not manage to collide them. CSCTF was configured in collision mode.

Trigger Plots

Trigger Rates

Run 121943 Arrow blue right Show Plots Hide Plots
HaloRateVTime121943.png

Run 121964 Arrow blue right Show Plots Hide Plots
L1rates121964.gif RateRun121964.png RateRun121964whenTheyTurnedOnHV.png

COMMENT: this is a circulating BEAM 2 run, and at the end of the run CSC finally turned on the HV only for the outer chambers. At that point in time we saw a big jump in the rate (right most plot) at the CSCTF, which is reflected in the L1 rate (left most plot)

Run 122023 Arrow blue right Show Plots Hide Plots
L1rates122023.gif TotalRateRun122023.png
CAPTION. Left: L1 rate at the trigger (ALL subsystems). Right: CSCTF input rate to the GMT.

COMMENT: this is a circulating BEAM 1 run; CSC had HV only for ALL chambers. It seems the beam was very low intensity and clean. Indeed the CSCTF recorded the 0.5 Hz which is the baseline for cosmics. So at the end we did not get many beam halos. The beam was stored starting at 17.32. The initial jump in the L1 rate (Left plot) comes from the exercising of the trigger with randoms.


Run 122045 Arrow blue right Show Plots Hide Plots
L1rates122045.gif TotalRateRun122045.png
CAPTION. Left: L1 rate at the trigger (ALL subsystems). Right: CSCTF input rate to the GMT.

COMMENT: this is a circulating BEAM 1 run; CSC had HV only for ALL chambers. It seems the beam was very low intensity and clean. Indeed the CSCTF recorded the 0.5 Hz which is the baseline for cosmics. BSC also recorded no rate which confirms what CSCTF reported. So at the end we did not get many beam halos. The beam was stored several times and after that dumped.


AFTER THIS RUN WE MODIFIED THE ME1/1 ETA CUTS TO LOOSEN THEM AND RECORD MORE RATE

Run 122135 Arrow blue right Show Plots Hide Plots
L1rates122135.gif TotalRateRun122135.png
CAPTION. Left: L1 rate at the trigger (ALL subsystems). Right: CSCTF input rate to the GMT.

COMMENT: this is a circulating BEAM 2 run; CSC had HV on STANDBY. We got some beam and CSCTF saw a jump in the rate smile



RateHistoryRun122135.png
CAPTION. CSCTF input rate to the GMT sector-by-sector.

COMMENT: 4 crates are off and they affect all the chambers in sector 7 and 12 in ME2 and ME3 and we do not expect to have rate from these 2 sectors.


Run 122294 Arrow blue right Show Plots Hide Plots
L1rates122294.gif TotalRateRun122294.png
CAPTION. Left: L1 rate at the trigger (ALL subsystems). Right: CSCTF input rate to the GMT.

COMMENT: this is a circulating BEAM1 and BEAM 2 run with the first attempt of collisions; until 14:08 the HV was on and CSCTF had the collision key but we just saw cosmic rate. After 14.08 the CSC HV was in standby, but at around 14.40 LHC started playing with the beams and we saw a spike in the rate. At around 14.48 CSC had HV on and the beam was not clean, so we saw very high rate, mostly due to halo rate. BSC confirmed to see a big increase in their rate. At around 15.03 CSC turned the HV in standby again.


COLLISIONS big grin

Run 122314 Arrow blue right Show Plots Hide Plots
L1rates122314.gif TotalRateRun122314.png
CAPTION. Left: L1 rate at the trigger (ALL subsystems). Right: CSCTF input rate to the GMT.

COMMENT:


Run 123151 Arrow blue right Show Plots Hide Plots
L1rates123151.gif TotalRateRun123151.png
CAPTION. Left: L1 rate at the trigger (ALL subsystems). Right: CSCTF input rate to the GMT.

COMMENT:


Run 123592 Arrow blue right Show Plots Hide Plots
L1rates123592.gif TotalRateRun123592.png
CAPTION. Left: L1 rate at the trigger (ALL subsystems). Right: CSCTF input rate to the GMT.

COMMENT:


Run 123596 Arrow blue right Show Plots Hide Plots
L1rates123596.gif TotalRateRun123596.png
CAPTION. Left: L1 rate at the trigger (ALL subsystems). Right: CSCTF input rate to the GMT.

COMMENT:


Run 123615 Arrow blue right Show Plots Hide Plots
L1rates123615.gif TotalRateRun123615.png
CAPTION. Left: L1 rate at the trigger (ALL subsystems). Right: CSCTF input rate to the GMT.

COMMENT:


Trigger Occupancy

Run 121943 Arrow blue right Show Plots Hide Plots
AbsBxn_121943.png
AbsBxn_Zoom_121943.png

Run 121964 Arrow blue right Show Plots Hide Plots
AbsBxn_121964.png
AbsBxn_Zoom_121964.png
Occ_121964.png

Trigger Cuts

Arrow blue right Show Plots Hide Plots


Flux

CSC Flux

Arrow blue right Show Plots Hide Plots


Calo Flux

Arrow blue right Show Plots Hide Plots


Event Displays

Arrow blue right Show Plots Hide Plots

img3e37bbb163a69b16e42813d2308337e4.jpg
Event from Single-Beam Run 121964
imgc0ee69a10e834004655f05ec787e046f.jpg
Event from Single-Beam Run 121964















imgb5236c05b7b313d19de6ccec07e5a17f.jpg
Event from Single-Beam Run 121964
imgbe3f238ea2782539620d53721fc1cce9.jpg
Event from Single-Beam Run 121964















imgfbc0403e3e72c6961b32038ed48f8977.jpg
Event from Single-Beam Run 121964
imgb248cd190324e1afd76a852ad7e05700.jpg
Event from Single-Beam Run 121964















imgaf80f4dd95f5a4ab95517491354cc2b9.jpg
Event from Single-Beam Run 121964
imgfb9f7e5220ad81fa8909bd51dd4d951c.jpg
Event from Single-Beam Run 121964















img627cc9f40de095aa10eea165fb9376e2.jpg
Event from Single-Beam Run 121964
img5f5b05586df4eeb37933adaac49e6098.jpg
Event from Single-Beam Run 121964















img2fefebfb2a54548c0a0fcfcd8b2678fa.jpg
Event from Single-Beam Run 121964
img8c6059774e3f0912ad738a130b97051e.jpg
Event from Single-Beam Run 121964















imgfe7dc799970109dd4f5e8cc5ae61d8a9.jpg
Event from Single-Beam Run 121964
img15322f77737fab32e13e36fb5640e888.jpg
Event from Single-Beam Run 121964
















-- JosephGartnerIII - 19-Nov-2009

Topic attachments
I Attachment History Action Size Date Who Comment
PNGpng AbsBxn_121943.png r3 r2 r1 manage 20.3 K 2009-11-21 - 17:11 JosephGartnerIII  
PNGpng AbsBxn_121964.png r1 manage 21.6 K 2009-11-21 - 17:13 JosephGartnerIII  
PNGpng AbsBxn_Zoom_121943.png r3 r2 r1 manage 19.8 K 2009-11-21 - 17:13 JosephGartnerIII  
PNGpng AbsBxn_Zoom_121964.png r1 manage 22.2 K 2009-11-21 - 17:13 JosephGartnerIII  
PNGpng DelEta12_121964.png r1 manage 17.5 K 2009-11-22 - 15:21 JosephGartnerIII  
PNGpng DelEta13_121964.png r1 manage 18.1 K 2009-11-22 - 15:22 JosephGartnerIII  
PNGpng DelPhi12_121964.png r1 manage 17.8 K 2009-11-22 - 15:22 JosephGartnerIII  
PNGpng DelPhi13_121964.png r1 manage 17.5 K 2009-11-22 - 15:22 JosephGartnerIII  
PNGpng HaloRateVTime121943.png r1 manage 18.0 K 2009-11-21 - 17:13 JosephGartnerIII  
GIFgif L1rates121964.gif r1 manage 277.7 K 2009-11-22 - 15:35 GianPieroDiGiovanni L1 rate, run 121964
GIFgif L1rates122023.gif r1 manage 277.7 K 2009-11-22 - 15:34 GianPieroDiGiovanni L1 rate, run 122023
GIFgif L1rates122045.gif r1 manage 277.7 K 2009-11-22 - 15:34 GianPieroDiGiovanni L1 rate, run 122045
GIFgif L1rates122135.gif r1 manage 277.7 K 2009-11-22 - 16:19 GianPieroDiGiovanni L1 rate, run 122135
GIFgif L1rates122294.gif r1 manage 277.7 K 2009-11-23 - 17:43 GianPieroDiGiovanni L1 rate, run 122294
GIFgif L1rates123592.gif r1 manage 277.7 K 2009-12-07 - 17:47 GianPieroDiGiovanni  
GIFgif L1rates123596.gif r1 manage 277.7 K 2009-12-07 - 17:47 GianPieroDiGiovanni  
GIFgif L1rates123615.gif r1 manage 277.7 K 2009-12-07 - 17:47 GianPieroDiGiovanni  
PNGpng MC21.png r2 r1 manage 45.3 K 2009-11-19 - 11:14 JosephGartnerIII  
PNGpng MC211.png r2 r1 manage 43.6 K 2009-11-19 - 11:15 JosephGartnerIII  
PNGpng MC31.png r2 r1 manage 43.2 K 2009-11-19 - 11:15 JosephGartnerIII  
PNGpng MC311.png r2 r1 manage 48.3 K 2009-11-19 - 11:15 JosephGartnerIII  
PNGpng MemOcc.png r1 manage 20.0 K 2009-11-20 - 18:45 JosephGartnerIII  
PNGpng MepOcc.png r1 manage 19.9 K 2009-11-20 - 18:46 JosephGartnerIII  
PNGpng Occ_121943.png r1 manage 18.3 K 2009-11-21 - 17:13 JosephGartnerIII  
PNGpng Occ_121964.png r1 manage 18.2 K 2009-11-21 - 17:14 JosephGartnerIII  
PNGpng RateHistoryRun122135.png r1 manage 69.5 K 2009-11-22 - 16:34 GianPieroDiGiovanni CSCTF rate, run 122135 (sector-bysector)
PNGpng RateRun121964.png r1 manage 10.6 K 2009-11-22 - 15:36 GianPieroDiGiovanni CSCTF rate, run 121964 initial
PNGpng RateRun121964whenTheyTurnedOnHV.png r1 manage 9.6 K 2009-11-22 - 15:36 GianPieroDiGiovanni CSCTF rate, run 121964 when HV turned ON
PNGpng SpBxn.png r1 manage 21.3 K 2009-11-20 - 18:46 JosephGartnerIII  
PNGpng TotOcc.png r1 manage 19.7 K 2009-11-20 - 18:46 JosephGartnerIII  
PNGpng TotalRateRun122023.png r1 manage 23.9 K 2009-11-22 - 15:37 GianPieroDiGiovanni CSCTF rate, run 122023
PNGpng TotalRateRun122045.png r1 manage 28.4 K 2009-11-22 - 15:37 GianPieroDiGiovanni CSCTF rate, run 122045
PNGpng TotalRateRun122135.png r1 manage 11.9 K 2009-11-22 - 16:32 GianPieroDiGiovanni CSCTF rate, run 122135
PNGpng TotalRateRun122294.png r1 manage 28.9 K 2009-11-23 - 17:43 GianPieroDiGiovanni  
PNGpng TotalRateRun123592.png r1 manage 13.5 K 2009-12-07 - 17:53 GianPieroDiGiovanni  
PNGpng TotalRateRun123596.png r1 manage 21.2 K 2009-12-07 - 17:53 GianPieroDiGiovanni  
PNGpng TotalRateRun123615.png r1 manage 20.4 K 2009-12-07 - 17:53 GianPieroDiGiovanni  
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Topic revision: r22 - 2010-05-16 - unknown
 
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