Difference between revisions of "Engineering Run"
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* <s>Once beam tuning is complete move the beam blocker in (beam should be off for this), ask for 5 nA and ask MCC to unmask the FSD;</s> | * <s>Once beam tuning is complete move the beam blocker in (beam should be off for this), ask for 5 nA and ask MCC to unmask the FSD;</s> | ||
* <s>Ask MCC to use BPM current readings from 2C24 and 2H01 for current lock (see https://logbooks.jlab.org/entry/3502484);</s> | * <s>Ask MCC to use BPM current readings from 2C24 and 2H01 for current lock (see https://logbooks.jlab.org/entry/3502484);</s> | ||
− | * Turn on the Forward Carriage detectors: ECAL, FTOF; check rates and record them in the logbook; | + | * <s>Turn on the Forward Carriage detectors: ECAL, FTOF; check rates and record them in the logbook;</s> |
− | * If rates are consistent with previous good beam tune, proceed to turning on LTCC, DC, HTCC, CTOF,CND, FT-Hodo; | + | * <s>If rates are consistent with previous good beam tune, proceed to turning on LTCC, DC, HTCC, CTOF,CND, FT-Hodo; |
− | * If rates are acceptable, contact Y. Gotra to turn on SVT and M. Defurne to turn on MVT and FTT; while Yuri will monitor the SVT, increase the beam current to 5 nA. | + | * If rates are acceptable, contact Y. Gotra to turn on SVT and M. Defurne to turn on MVT and FTT; while Yuri will monitor the SVT, increase the beam current to 5 nA.</s> |
* Once all detectors are on, record rates in all detectors, and currents in the DC, SVT, and MM, at solenoid field settings of 50%, 60%, 70%, 80%, 90%, and 100%. To do that use the tool described at https://logbooks.jlab.org/entry/3504609. Make sure that the logbook information is complete and readable! | * Once all detectors are on, record rates in all detectors, and currents in the DC, SVT, and MM, at solenoid field settings of 50%, 60%, 70%, 80%, 90%, and 100%. To do that use the tool described at https://logbooks.jlab.org/entry/3504609. Make sure that the logbook information is complete and readable! | ||
* At 100% solenoid field, record rates in all detectors, and currents in the DC, SVT, and MM, at beam currents of 5 nA, 15 nA, 25 nA, ... The beam intensity and duration will be established by the beamline expert and the SVT and MM experts. Make sure that the logbook information is complete and readable! | * At 100% solenoid field, record rates in all detectors, and currents in the DC, SVT, and MM, at beam currents of 5 nA, 15 nA, 25 nA, ... The beam intensity and duration will be established by the beamline expert and the SVT and MM experts. Make sure that the logbook information is complete and readable! |
Revision as of 01:09, 15 December 2017
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CLAS12 Engineering Run, Fall 2017
Beam energy 10.6 GeV (5 pass)
Torus : +3770 A (100% field);
Important: Document all your work in the logbook!
Remember to fill in the run list at the beginning and end of each run (clas12run@gmail.com can fill the run list)
RC: Daniel S. Carman
- (757) 575-7540
- 9 575 7540 from Counting Room
- carman@jlab.org
PDL: Eugene Pasyuk
- (757) 876-1789
- 9 876-1789 from Counting Room
- pasyuk@jlab.org
Run Plan:All studies for the next few shifts will use 100% torus field (negatives bending in); the strength of the solenoid field and the status of the hydrogen target are listed below.
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General Instructions:
Beam Tuning:
When ready to get beam, Turn all beamline devices ON, turn all CLAS12 detectors OFF (including SVT)
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Every Shift:
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Every Run:
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