Difference between revisions of "Summer 2020 DIRC Commissioning"
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== Preliminary Schedule == | == Preliminary Schedule == | ||
* 9/1 Installation and survey until ~18:00 | * 9/1 Installation and survey until ~18:00 | ||
| − | * 9/1 18:00 - 9/2 04:00 -- Straight-track data (10 hours) | + | * 9/1 18:00 - 9/2 04:00 -- Straight-track data (10 hours, Tuesday night) |
| − | * 9/2 04:00 - 9/ | + | * 9/2 04:00 - 9/2 12:00 -- Ramp solenoid magnet (8 hours, Wednesday day) |
| − | * 9/ | + | * 9/2 12:00 - 9/3 06:00 -- Full field data: tracking mode (18 hours, Wednesday night) |
| − | * 9/ | + | * 9/3 06:00 - 9/3 10:00 -- Full field data: TRD mode (4 hours, Thursday day) |
| + | * 9/3 De-installation -- Technical crew de-install in the afternoon? | ||
| − | + | Notes: | |
| − | + | * Assumes ~50% beam availability as normal. Schedule could be delayed if beam is down for prolonged period | |
| − | + | * Could do activities which don't require solenoid on Wednesday (9/2) morning while magnet is ramping | |
== Calibration datasets == | == Calibration datasets == | ||
| Line 37: | Line 38: | ||
* Operate TRDs with two different gasses using raw mode (Lubomir and Sergey required) | * Operate TRDs with two different gasses using raw mode (Lubomir and Sergey required) | ||
** 4 hours: standard FCAL-BCAL trigger | ** 4 hours: standard FCAL-BCAL trigger | ||
| + | |||
| + | == Detector location and plane labeling == | ||
| + | |||
| + | [https://halldweb.jlab.org/wiki/images/4/45/GEM_TRD_setup_Aug2020.pdf Lubomir's presentation] | ||
Revision as of 08:14, 1 September 2020
Contents
Preliminary Schedule
- 9/1 Installation and survey until ~18:00
- 9/1 18:00 - 9/2 04:00 -- Straight-track data (10 hours, Tuesday night)
- 9/2 04:00 - 9/2 12:00 -- Ramp solenoid magnet (8 hours, Wednesday day)
- 9/2 12:00 - 9/3 06:00 -- Full field data: tracking mode (18 hours, Wednesday night)
- 9/3 06:00 - 9/3 10:00 -- Full field data: TRD mode (4 hours, Thursday day)
- 9/3 De-installation -- Technical crew de-install in the afternoon?
Notes:
- Assumes ~50% beam availability as normal. Schedule could be delayed if beam is down for prolonged period
- Could do activities which don't require solenoid on Wednesday (9/2) morning while magnet is ramping
Calibration datasets
Summary page for Summer 2020 TRD/GEM Commissioning lists the relevant run ranges for the datasets collected below
Straight-track data
- For alignment of the GEM/TRD we need to acquire production samples with the magnetic field off
- Straight-track sample at the beam-center TRD positions with the full GEM readout for tracking and alignment studies
- Standard GlueX no-field measurements with 50nA on 10^-4 amorphous radiator
- 2 hours: focused FCAL trigger in GEM location to verify TRD/GEM signals (raw mode)
- 8 hours: standard FCAL-BCAL trigger for alignment data
Full-field data: tracking mode
- With the aligned GEM/TRD collect data for track extrapolation validation and multi-plane tracking directly upstream of DIRC
- Full solenoid field sample at the beam-center TRD positions with the full GEM readout for tracking and alignment studies
- Standard GlueX running conditions at 150nA, 250 nA and 350nA
- 2 hours: focused FCAL trigger in GEM location to verify TRD/GEM signals (raw mode)
- 8 hours: standard FCAL-BCAL trigger at 150 nA (low energy TAGH turned on)
- 4 hours: standard FCAL-BCAL trigger at 250 nA (low energy TAGH turned off)
- 4 hours: standard FCAL-BCAL trigger at 350 nA (low energy TAGH turned off)
Full-field data: TRD mode
- For TRD pion rejection performance acquire production samples with the TRD in "cluster counting" mode with all the GEM packages read out.
- Operate TRDs with two different gasses using raw mode (Lubomir and Sergey required)
- 4 hours: standard FCAL-BCAL trigger
