Difference between revisions of "FY2022 beam test high rate summary"
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| + | =High rate at 18 deg= | ||
==Goals== | ==Goals== | ||
*SPD PID study (need photon samples) | *SPD PID study (need photon samples) | ||
*ECal PID study (charged electron and pion samples) | *ECal PID study (charged electron and pion samples) | ||
*We need to study LASPD timing | *We need to study LASPD timing | ||
| + | |||
| + | ==Run Information== | ||
| + | *The 18 deg run was carried out from Feb. 20 to March 20, 2023. | ||
| + | *Mike's run list: | ||
| + | **run list [https://docs.google.com/spreadsheets/d/1HJXnRIbr646CiAdeprF8JcMBowMJ0t8A/edit?pli=1#gid=1422715418 google spreadsheet] | ||
| + | **runs divided into conditions: [https://docs.google.com/presentation/d/1R9CSADssyumREaxqnIwN-hKy_BsLrKc1/edit#slide=id.p1 google slides] | ||
| + | *Detector layout: | ||
| + | **Schematic layout with detector sizes: [https://solid.jlab.org/wiki/images/7/7a/Detector_layout_highrate.pdf pdf] [https://solid.jlab.org/wiki/images/5/55/Detector_layout_highrate.ppt ppt] | ||
| + | **Jimmy's record: [https://solid.jlab.org/wiki/index.php/File:Solid_beam_test_table_measurements_18_degree.pdf beam_test_table_measurements_18_degree.pdf] | ||
| + | **Shower prototype PMT information (gain vs. HV): [https://redmine.jlab.org/attachments/2064 HV_JLab_prototype.xlsx] from Ye Tian (China) | ||
| + | *Jixie's online run list on redmine: [https://redmine.jlab.org/projects/solid-ecal/wiki/Hallc_beamtest_runlist online run list June 2022 - Jan 6, 2023]; [https://redmine.jlab.org/projects/solid-ecal/wiki/Hallc_beamtest_runlist_highrate Jan 11 - Feb 19, 2023]; [https://redmine.jlab.org/projects/solid-ecal/wiki/Hallc_beamtest_runlist_18deg Feb 20 - March 18, 2023] | ||
| + | *Jixie's [https://redmine.jlab.org/projects/solid-ecal/wiki/Cable_map_(signal_&_HV) cable and HV map] on redmine | ||
| + | *[https://solid.jlab.org/wiki/images/1/1c/Survey_C2067.pdf Survey (alignment) report dated 04/06/2023] | ||
| + | *[https://redmine.jlab.org/projects/solid-ecal/wiki/Dosimetry Dosimeter reading report] on redmine | ||
| + | *[https://redmine.jlab.org/projects/solid-ecal/wiki/2022_JLab_Hall_C_Beam_test 2022 Beam Test Redmine page] | ||
| + | |||
| + | ==List of Suggested Technical Notes== | ||
| + | *(Mike/Jimmy) alignment and layout | ||
| + | *(Mike) radiation dosimeter reading | ||
| + | *(Mike) Runlist (4 plots static for 18 deg linking to dynamic plots, also including 82 and 7 deg), including rates | ||
| + | *(Darren+someone) Cherenkov analysis | ||
| + | *(Mike/Zhiwen) summary of rates from preCDR work for each detector (to compare with our beam test) | ||
| + | *(Jixie) data cooking, pulse finding, integration and deconvolution | ||
| + | *(Ye) clean sample events – what types of runs to use and how to define them | ||
| + | *(Carter) LASPD timing extraction, including "edge-finding" algorithm in decoder | ||
| + | |||
| + | =High rate at 7 deg= | ||
| + | ==Goals== | ||
| + | *Rates here were too high for proper PID analysis. We focused on carbon foil (and other thin) targets, and asked 5uA dedicated beam time for 20 minutes a week to check out the system. HVs were kept off during high luminosity running. | ||
| + | *main goal will be to make sure detectors all work properly | ||
| + | *Data may be useful to characterize limit of the detectors (under what situation would the detector signal "saturate"?) | ||
| + | ==Run Information== | ||
| + | *The 7 deg run was carried out from January to February 2023, during XEM2 experiments | ||
| + | *Jimmy's record of detector layout: | ||
| + | **[https://solid.jlab.org/wiki/index.php/File:Solid_beam_test_table_measurements_7_degree.pdf beam_test_table_measurements_7_degree.pdf] | ||
| + | *Dosimeter reading report | ||
| + | |||
| + | =Target Information= | ||
| + | The target ladder was unchanged from 7 to 18 deg (XEM2) and then to deuteron disintegration. The complete list can be found at https://wiki.jlab.org/xem2wiki/index.php/Data_Analysis_-_Target_Information | ||
| + | Specifically: | ||
| + | *3He: T=5.6 K, P=55 PSI, density=0.041 g/cm^3, 10 cm long or 0.41 g/cm^2 thick -- 3He started out around 100 PSI before the leak | ||
| + | *4He: T=5.6K P=110 PSI, density=0.129 g/cm^3, 10 cm long or 1.29 g/cm^2 thick | ||
| + | *carbon target: 0.574 g/cm^2 +/- 0.002 g/cm^2 | ||
| + | *aluminum dummy: 0.476 g/cm^2 (sum of two foils) +/- 0.003 g/cm^2 (uncertainty of each foil) | ||
| + | *Xiaochao comment: So 3He is slightly thinner than carbon, and 4He is about twice as thick | ||
Latest revision as of 13:42, 12 August 2024
Contents
High rate at 18 deg
Goals
- SPD PID study (need photon samples)
- ECal PID study (charged electron and pion samples)
- We need to study LASPD timing
Run Information
- The 18 deg run was carried out from Feb. 20 to March 20, 2023.
- Mike's run list:
- run list google spreadsheet
- runs divided into conditions: google slides
- Detector layout:
- Schematic layout with detector sizes: pdf ppt
- Jimmy's record: beam_test_table_measurements_18_degree.pdf
- Shower prototype PMT information (gain vs. HV): HV_JLab_prototype.xlsx from Ye Tian (China)
- Jixie's online run list on redmine: online run list June 2022 - Jan 6, 2023; Jan 11 - Feb 19, 2023; Feb 20 - March 18, 2023
- Jixie's cable and HV map on redmine
- Survey (alignment) report dated 04/06/2023
- Dosimeter reading report on redmine
- 2022 Beam Test Redmine page
List of Suggested Technical Notes
- (Mike/Jimmy) alignment and layout
- (Mike) radiation dosimeter reading
- (Mike) Runlist (4 plots static for 18 deg linking to dynamic plots, also including 82 and 7 deg), including rates
- (Darren+someone) Cherenkov analysis
- (Mike/Zhiwen) summary of rates from preCDR work for each detector (to compare with our beam test)
- (Jixie) data cooking, pulse finding, integration and deconvolution
- (Ye) clean sample events – what types of runs to use and how to define them
- (Carter) LASPD timing extraction, including "edge-finding" algorithm in decoder
High rate at 7 deg
Goals
- Rates here were too high for proper PID analysis. We focused on carbon foil (and other thin) targets, and asked 5uA dedicated beam time for 20 minutes a week to check out the system. HVs were kept off during high luminosity running.
- main goal will be to make sure detectors all work properly
- Data may be useful to characterize limit of the detectors (under what situation would the detector signal "saturate"?)
Run Information
- The 7 deg run was carried out from January to February 2023, during XEM2 experiments
- Jimmy's record of detector layout:
- Dosimeter reading report
Target Information
The target ladder was unchanged from 7 to 18 deg (XEM2) and then to deuteron disintegration. The complete list can be found at https://wiki.jlab.org/xem2wiki/index.php/Data_Analysis_-_Target_Information Specifically:
- 3He: T=5.6 K, P=55 PSI, density=0.041 g/cm^3, 10 cm long or 0.41 g/cm^2 thick -- 3He started out around 100 PSI before the leak
- 4He: T=5.6K P=110 PSI, density=0.129 g/cm^3, 10 cm long or 1.29 g/cm^2 thick
- carbon target: 0.574 g/cm^2 +/- 0.002 g/cm^2
- aluminum dummy: 0.476 g/cm^2 (sum of two foils) +/- 0.003 g/cm^2 (uncertainty of each foil)
- Xiaochao comment: So 3He is slightly thinner than carbon, and 4He is about twice as thick
