Difference between revisions of "The HPS Run Wiki"
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# '''Ask for 10 nA beam. When the beam sent to FC, it should be clearly visible on the downstream viewer. The halo counter rates downstream of the HPS, HPS-SC, and HPS-T should not be more than 10s of kHz. All upstream halo counters must be in the range of <100Hz.''' | # '''Ask for 10 nA beam. When the beam sent to FC, it should be clearly visible on the downstream viewer. The halo counter rates downstream of the HPS, HPS-SC, and HPS-T should not be more than 10s of kHz. All upstream halo counters must be in the range of <100Hz.''' | ||
#'''First find the position of the collimator by performing the collimator wire scan. The current position of the wire for beam center is 4.41 (labeled on the GUI), if the measurement finds beam center at a different position use the expert GUI to set the 3.94 mm SVT collimator to the right position (current position is 6.212, which means that the distance between the wire and the center of the 3.94 mm hole is 1.802). After collimator is in place all beam studies should be done in these conditions with beam currents of 30 nA.''' --> | #'''First find the position of the collimator by performing the collimator wire scan. The current position of the wire for beam center is 4.41 (labeled on the GUI), if the measurement finds beam center at a different position use the expert GUI to set the 3.94 mm SVT collimator to the right position (current position is 6.212, which means that the distance between the wire and the center of the 3.94 mm hole is 1.802). After collimator is in place all beam studies should be done in these conditions with beam currents of 30 nA.''' --> | ||
− | # | + | # Establish beam to the Faraday cup following the "General Guidelines" and Beamline Procedures. The required beam profile at 2H02A harp is X-width <~0.10 mm, Y-width <~ 0.060 mm |
# Restore ECal and Hodoscope | # Restore ECal and Hodoscope | ||
#* Turn on HVs on ECal and Hodoscope | #* Turn on HVs on ECal and Hodoscope | ||
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#* <strike>Check ECal and hodoscope rates as a function of the target position. Starting from the nominal position of the 4 um foil, move the target ladder towards 8 um W foil with 0.5 mm steps using expert GUI. Record target position and the ECal and hodooscope scaler rates. </strike> | #* <strike>Check ECal and hodoscope rates as a function of the target position. Starting from the nominal position of the 4 um foil, move the target ladder towards 8 um W foil with 0.5 mm steps using expert GUI. Record target position and the ECal and hodooscope scaler rates. </strike> | ||
# Setup FSD thresholds/rates and ECal/hodoscope rates using 4 um W target to up 400 nA beam. Note: thresholds on FSD must be changed while scanning. Record rates in the logbook. Call beamline expert if needed. | # Setup FSD thresholds/rates and ECal/hodoscope rates using 4 um W target to up 400 nA beam. Note: thresholds on FSD must be changed while scanning. Record rates in the logbook. Call beamline expert if needed. | ||
+ | # Go back to 50 nA and with SVT expert perform SVT wire scan to find position of the beam relative to STV | ||
# Call ECal and DAQ expert to perform pedestal run and DAQ/trigger studies | # Call ECal and DAQ expert to perform pedestal run and DAQ/trigger studies | ||
#* Trigger/DAQ expert checks trigger rates, DAQ, and deadtime with 30-50 nA beam on 4 um target. Record: | #* Trigger/DAQ expert checks trigger rates, DAQ, and deadtime with 30-50 nA beam on 4 um target. Record: |
Revision as of 15:43, 17 June 2019
[edit]
Phone NumbersShift ScheduleShift-Taker's ChecklistHot CheckoutBeam Time AccountingRun Spreadsheet 2019,2016, 2015HPS Upgrade ERR |
Procedures
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Manuals |
JLab Logbooks
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HPS 2019 run, June X to August Y'
Beam energy 4.5 GeV
Important: Document all your work in the logbook!
Bluejeans for Run Meetings on DAY and DAY at 2pm
RC: Stepan Stepanyan
- (757) 575-7540
- 9 575 7540 from Counting Room
PDL: Valery Kubarovsky
- (757) 876-1789
- 9 876-1789 from Counting Room
* !! Chicane magnets can be energized only when the hall is in Beam Permit, [1]. Chicane magnets must be off if the hall is in Restricted or in Controlled access.
* The vacuum gauge used in SVT interlock (2H03) is broken. Watch the gauge 2H02, in case of a vacuum event valves will close and the beam will be shut-off. If the event is at 2H02 (loss of vacuum near HPS chamber) call SVT expert immediately and follow his/her instruction.
Run Plan June 17 - 18, 2019Establish beam to the tagger dump
Bring beam to FC
Important Notes:
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General InstructionsDAQ RECOVERYIf DAQ crashed/broken:
Establishing Physics Quality Beam for HPS:
Note: in order to have reliable readings on two important for HPS BPMs, 2H00 and 2H02, beam current should be >30 nA.
Setting up the FSD threshold
hpsrun@clonpc11> /home/hpsrun/scripts/FSD/Calc_FSD_Threshold.exe
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Every Shift:
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Every Run:
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RC daily meetings at 2 pm in the counting-house 2nd-floor conference room.
BlueJeans Info:
URL: https://bluejeans.com/794825703
Meeting ID: 794825703
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Webcams:
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Accelerator:
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Slow Controls:
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Online & Offline: |
System/Person | Pager/Phone Number |
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Run Coordinator | (757) 575-7540 (cell) |
Physics Div. Liaison | (757) 876-1789 (cell) |
MCC-OPS | 7048 |
Crew Chief | 7045 |
Crew Chief | 9-879-3367 (cell) |
Program Deputy | 9-876-7997 (cell) |
Gate House Guard | 5822 |
DAQ/Online | (757) 869-2188 (cell) |
SVT | (757) 310-7198 (cell) |
ECAL | (757) 810-1489 (cell) |
Slow Controls | (757) 748-6922 (cell) |
Beamline | (757) 303-3996 (cell) |
Engineering | (757) 748-5048 |
Hall-B Floor | 5165 |
Hall-B Space Frame | 5170, 5171 |
Hall-B Forward Carriage | 5371 |
Hall-B Counting Room | 5126, 5244, 5246, 5247 |
Hall-B Gas Shed | 7115 |