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pdf file with corresponding page numbers![]() |
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Liquid Argon Readout Electronics Chain |
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Liquid Argon Front End Board Schematics |
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LAr dead and problematic channels: A detailed description of how dead and problematic LAr read-out channels are discovered and treated/masked for data analysis can be found in the paper "Monitoring and data quality assessment of the ATLAS liquid argon calorimeter"![]() | Link to ATLAS Detector Status Table |
LAr High Voltage Correction |
![]() HV Corrections (September 2009) ![]() ![]() |
Measured impurity in oxygen equivalent of the liquid argon in the barrel cryostat (run 2): Each point shows the mean of the purity values measured during one week starting at the beginning of 2015 until the end of 2018. Periods between pp-runs are marked hatched. Data points during collisions are not taken into account due to high radiation in the calorimeter that lead to signals in the ionization chambers. Most of the monitors show charge-up effects after periods of time without high voltage. The decreasing trend in all monitors is correlated with the data taking periods. A clear explanation is not yet found, a change of other input parameters (like temperature or high voltage of the ionization chambers) is excluded. The measured purity in barrel A 1 after middle 2016 is excluded due to problems which are not yet understood. Barrel A 2 and barrel C 4 monitors are not working properly. |
![]() eps version, pdf version |
Measured impurity in oxygen equivalent of the liquid argon in the barrel cryostat (run 1 + run 2): Each point shows the mean of the purity values measured during one week starting at the end of 2009 until the end of 2018. Periods between pp-runs are marked hatched. Data points during collisions are not taken into account due to high radiation in the calorimeter that lead to signals in the ionization chambers. Most of the monitors show charge-up effects after periods of time without high voltage. The decreasing trend in all monitors is correlated with the data taking periods. A clear explanation is not yet found, a change of other input parameters (like temperature or high voltage of the ionization chambers) is excluded. The leap of the measured purity in barrel A 4 at the beginning of 2010 is unclear; a connection with an actual improvement of the purity can be excluded. The measured purity in barrel A 1 after middle 2016 is excluded due to problems which are not yet understood. Barrel A 2 and barrel C 4 monitors are not working properly. |
![]() eps version, pdf version |
Measured impurity in oxygen equivalent of the liquid argon in the end-cap cryostat on side A (run 2): Each point shows the mean of the purity values measured during one week starting at the beginning of 2015 until the end of 2018. Last letter A, B or C in the legend corresponds to the monitor position with respect to phi. Periods between pp-runs are marked hatched. Data points during collisions are not taken into account due to high radiation in the calorimeter that lead to signals in the ionization chambers. Most of the monitors show charge-up effects after periods of time without high voltage. |
![]() eps version, pdf version |
Measured impurity in oxygen equivalent of the liquid argon in the end-cap cryostat on side A (run 1 + run 2): Each point shows the mean of the purity values measured during one week starting at the end of 2009 until the end of 2018. Last letter A, B or C in the legend corresponds to the monitor position with respect to phi. Periods between pp-runs are marked hatched. Data points during collisions are not taken into account due to high radiation in the calorimeter that lead to signals in the ionization chambers. Most of the monitors show charge-up effects after periods of time without high voltage. The decreasing trend in all monitors before LS1 is correlated with the data taking periods. A clear explanation is not yet found, a change of other input parameters (like temperature or high voltage of the ionization chambers) is excluded. |
![]() eps version, pdf version |
Measured impurity in oxygen equivalent of the liquid argon in the end-cap cryostat on side C (run 2): Each point shows the mean of the purity values measured during one week starting at the beginning of 2015 until the end of 2018. Last letter A, B or C in the legend corresponds to the monitor position with respect to phi. Periods between pp-runs are marked hatched. Data points during collisions are not taken into account due to high radiation in the calorimeter that lead to signals in the ionization chambers. Most of the monitors show charge-up effects after periods of time without high voltage. The measured purity in HEC 1 C B after middle 2016 is excluded due to problems which are not yet understood. HEC 1 C C, HEC 2 C B and EC C top monitors are not working properly. |
![]() eps version, pdf version |
Measured impurity in oxygen equivalent of the liquid argon in the end-cap cryostat on side C (run 1 + run 2): Each point shows the mean of the purity values measured during one week starting at the end of 2009 until the end of 2018. Last letter A, B or C in the legend corresponds to the monitor position with respect to phi. Periods between pp-runs are marked hatched. Data points during collisions are not taken into account due to high radiation in the calorimeter that lead to signals in the ionization chambers. Most of the monitors show charge-up effects after periods of time without high voltage. The decreasing trend in all monitors before LS1 is correlated with the data taking periods. A clear explanation is not yet found, a change of other input parameters (like temperature or high voltage of the ionization chambers) is excluded. The measured purity in HEC 1 C B after middle 2016 is excluded due to problems which are not yet understood. HEC 1 C C, HEC 2 C B and EC C top monitors are not working properly. |
![]() eps version, pdf version |
Measured impurity of the liquid argon in the barrel cryostat: Each point shows the mean of the purity values measured during one week starting middle of 2009 until beginning of 2016. Periods between pp-runs are marked gray. Data points during collisions are not taken into account due to high radiation in the calorimeter that lead to signals in the ionization chambers. Most of the monitors show charge-up effects after periods of time without high voltage. The decreasing trend in all monitors is correlated with the data taking periods. A clear explanation is not yet found, a change of other input parameters (like temperature or high voltage of the ionization chambers is excluded). The leap of the measured purity in barrel A4 at the beginning of 2009 is unclear; a connection with an actual improvement of the purity can be excluded. See here for more information. |
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Measured impurity of the liquid argon in the end-cap cryostat on side A: Each point shows the mean of the purity values measured during one week starting middle of 2009 until beginning of 2016. Periods between pp-runs are marked gray. Data points during collisions are not taken into account due to high radiation in the calorimeter that lead to signals in the ionization chambers. Most of the monitors show charge-up effects after periods of time without high voltage. The decreasing trend in all monitors is correlated with the data taking periods. A clear explanation is not yet found, a change of other input parameters (like temperature or high voltage of the ionization chambers is excluded). See here for more information. |
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Measured impurity of the liquid argon in the end-cap cryostat on side C: Each point shows the mean of the purity values measured during one week starting middle of 2009 until beginning of 2016. Periods between pp-runs are marked gray. Data points during collisions are not taken into account due to high radiation in the calorimeter that lead to signals in the ionization chambers. Most of the monitors show charge-up effects after periods of time without high voltage. The decreasing trend in all monitors is correlated with the data taking periods. A clear explanation is not yet found, a change of other input parameters (like temperature or high voltage of the ionization chambers is excluded). See here for more information. |
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Ionization Pulse Shape in the 4 EM Barrel layers |
![]() (PS) (eps) ![]() (Front) (eps) ![]() (Middle) (eps) ![]() (Back) (eps) |
Ionization Pulse Shape in the EM endcap middle layer |
![]() (Middle,HV=2.3kV) (eps) ![]() (Middle,HV=2.1kV) (eps) ![]() (Middle,HV=1.7kV) (eps) ![]() (Middle,HV=1.5kV) (eps) |
Ionization Pulse Shape in the FCal |
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Ionization Pulse Shape in the HEC |
![]() (HEC layer 1 pulse shape) ![]() ![]() ![]() (HEC layer 2 pulse shape) ![]() ![]() ![]() (HEC layer 3 pulse shape) ![]() ![]() ![]() (HEC layer 4 pulse shape) ![]() ![]() |
LAr Data Quality Inefficiency for 2011 proton-proton data taking - Some details |
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LAr Data Quality Inefficiency for 2011 lead-lead data taking - Some details |
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Noise bursts |
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Noise bursts fix in the presampler (Winter 08) |
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Pedestals and noise stability |
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Impact of FEB refurbishment (winter 09) |
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Monitoring of timing |
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DSP computation |
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Figure with caption |
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Figure with caption |
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I | Attachment | History | Action | Size | Date | Who | Comment |
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BARREL_longterm_6.eps | r1 | manage | 653.4 K | 2016-05-17 - 18:29 | MartinAleksa | Purity Plots eps, png |
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BARREL_longterm_6.pdf | r1 | manage | 56.9 K | 2016-05-17 - 18:27 | MartinAleksa | Purity plots pdf |
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BARREL_longterm_6.png | r1 | manage | 61.4 K | 2016-05-17 - 18:29 | MartinAleksa | Purity Plots eps, png |
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EMEC_HEC_A_longterm_6.eps | r1 | manage | 630.9 K | 2016-05-17 - 18:29 | MartinAleksa | Purity Plots eps, png |
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EMEC_HEC_A_longterm_6.pdf | r1 | manage | 50.0 K | 2016-05-17 - 18:27 | MartinAleksa | Purity plots pdf |
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EMEC_HEC_A_longterm_6.png | r1 | manage | 50.8 K | 2016-05-17 - 18:29 | MartinAleksa | Purity Plots eps, png |
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EMEC_HEC_C_longterm_6.eps | r1 | manage | 591.3 K | 2016-05-17 - 18:29 | MartinAleksa | Purity Plots eps, png |
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EMEC_HEC_C_longterm_6.pdf | r1 | manage | 42.2 K | 2016-05-17 - 18:27 | MartinAleksa | Purity plots pdf |
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EMEC_HEC_C_longterm_6.png | r1 | manage | 42.8 K | 2016-05-17 - 18:29 | MartinAleksa | Purity Plots eps, png |
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SigRecFormula_Images_Comments.jpg | r1 | manage | 632.0 K | 2017-02-16 - 15:24 | MartinAleksa | Calibration formula |
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SigRecFormula_Images_Comments.pdf | r1 | manage | 70.8 K | 2017-02-16 - 15:27 | MartinAleksa | LAr Calibration |
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SigRecFormula_Images_Comments.ppt | r1 | manage | 137.0 K | 2017-02-16 - 15:24 | MartinAleksa | Calibration formula |
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barrels_run12.eps | r1 | manage | 44.7 K | 2019-01-29 - 10:42 | SteffenStaerz | Purity Plots Barrel Run 1+2 |
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barrels_run12.pdf | r1 | manage | 70.0 K | 2019-01-29 - 10:42 | SteffenStaerz | Purity Plots Barrel Run 1+2 |
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barrels_run12.png | r1 | manage | 31.7 K | 2019-01-29 - 10:42 | SteffenStaerz | Purity Plots Barrel Run 1+2 |
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barrels_run2.eps | r1 | manage | 26.7 K | 2019-01-29 - 10:40 | SteffenStaerz | Purity Plots Barrel Run 2 |
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barrels_run2.pdf | r1 | manage | 39.8 K | 2019-01-29 - 10:40 | SteffenStaerz | Purity Plots Barrel Run 2 |
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barrels_run2.png | r1 | manage | 28.8 K | 2019-01-29 - 10:40 | SteffenStaerz | Purity Plots Barrel Run 2 |
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cryo_a_run12.eps | r1 | manage | 44.5 K | 2019-01-29 - 10:45 | SteffenStaerz | Purity Plots Endcap A Run 1+2 |
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cryo_a_run12.pdf | r1 | manage | 80.9 K | 2019-01-29 - 10:45 | SteffenStaerz | Purity Plots Endcap A Run 1+2 |
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cryo_a_run12.png | r1 | manage | 29.8 K | 2019-01-29 - 10:45 | SteffenStaerz | Purity Plots Endcap A Run 1+2 |
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cryo_a_run2.eps | r1 | manage | 27.5 K | 2019-01-29 - 10:44 | SteffenStaerz | Purity Plots Endcap A Run 2 |
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cryo_a_run2.pdf | r1 | manage | 40.5 K | 2019-01-29 - 10:44 | SteffenStaerz | Purity Plots Endcap A Run 2 |
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cryo_a_run2.png | r1 | manage | 26.5 K | 2019-01-29 - 10:44 | SteffenStaerz | Purity Plots Endcap A Run 2 |
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cryo_c_run12.eps | r1 | manage | 30.9 K | 2019-01-29 - 10:46 | SteffenStaerz | Purity Plots Endcap C Run 1+2 |
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cryo_c_run12.pdf | r1 | manage | 58.2 K | 2019-01-29 - 10:46 | SteffenStaerz | Purity Plots Endcap C Run 1+2 |
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cryo_c_run12.png | r1 | manage | 26.7 K | 2019-01-29 - 10:46 | SteffenStaerz | Purity Plots Endcap C Run 1+2 |
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cryo_c_run2.eps | r1 | manage | 20.6 K | 2019-01-29 - 10:45 | SteffenStaerz | Purity Plots Endcap C Run 2 |
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cryo_c_run2.pdf | r1 | manage | 30.7 K | 2019-01-29 - 10:45 | SteffenStaerz | Purity Plots Endcap C Run 2 |
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cryo_c_run2.png | r1 | manage | 22.2 K | 2019-01-29 - 10:45 | SteffenStaerz | Purity Plots Endcap C Run 2 |
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lar-noise-2015data.pdf | r1 | manage | 151.4 K | 2016-01-25 - 17:07 | MartinAleksa | LAr total noise plots (2015) |
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noise_2015_ratio.eps | r1 | manage | 17.9 K | 2016-01-25 - 17:07 | MartinAleksa | LAr total noise plots (2015) |
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noise_2015_ratio.pdf | r1 | manage | 27.0 K | 2016-01-25 - 17:07 | MartinAleksa | LAr total noise plots (2015) |
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noise_2015_ratio.png | r1 | manage | 74.2 K | 2016-01-25 - 17:07 | MartinAleksa | LAr total noise plots (2015) |
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noise_data_2015.eps | r1 | manage | 17.6 K | 2016-01-25 - 17:07 | MartinAleksa | LAr total noise plots (2015) |
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noise_data_2015.pdf | r1 | manage | 27.7 K | 2016-01-25 - 17:07 | MartinAleksa | LAr total noise plots (2015) |
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noise_data_2015.png | r1 | manage | 77.0 K | 2016-01-25 - 17:07 | MartinAleksa | LAr total noise plots (2015) |
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noise_mc_2015.eps | r1 | manage | 17.3 K | 2016-01-25 - 17:07 | MartinAleksa | LAr total noise plots (2015) |
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noise_mc_2015.pdf | r1 | manage | 27.1 K | 2016-01-25 - 17:07 | MartinAleksa | LAr total noise plots (2015) |
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noise_mc_2015.png | r1 | manage | 77.3 K | 2016-01-25 - 17:07 | MartinAleksa | LAr total noise plots (2015) |