Difference between revisions of "Run Plan (DVCS3)"
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Use the procedure that is under .....<br> | Use the procedure that is under .....<br> | ||
Need: To insure that minimal beam lost in the machine can be measured, beam that would go up to about 100 uA. We also need to be the only hall receiving beam.<br> | Need: To insure that minimal beam lost in the machine can be measured, beam that would go up to about 100 uA. We also need to be the only hall receiving beam.<br> | ||
| − | '' | + | ''JR: Do we want to calibrate against the Unser monitor? Is the Unser operational? Do we know its calibration constant'' |
| − | '' | + | |
==== Moeller ==== | ==== Moeller ==== | ||
Revision as of 10:02, 10 September 2014
Assume: -longitudinally polarized beam -max 20 uA but for short times when it can go higher -7.7 GeV-4 pass or beam
Contents
Commissioning/ Calibration
Beam instruments
BPM/Raster checks/Beam centering
- Check that harps are functional
- Send unrastered beam to the four corners of a 2*2 mm square around assumed (0,0) position (as defined by RAD reading in beam dump). At each position compare harps against BPMs reading.
- JR: How to decide on beam centering beyond the RAD readings in the beam dump? Do we need to even go further than that?
- Check size raster using the spot++ tool. Pending target boiling studies result, we will use a 2*2 mm raster.
JR: Is it a matter to ask MCC for a 2*2 mm raster or does the info needs to go to them in a more "native" unit. Do we have a choice of frequency?
BCMs
Use the procedure that is under .....
Need: To insure that minimal beam lost in the machine can be measured, beam that would go up to about 100 uA. We also need to be the only hall receiving beam.
JR: Do we want to calibrate against the Unser monitor? Is the Unser operational? Do we know its calibration constant
Moeller
The proposal goal calls for ΔP/P=1%.
Open questions: How often do we want to measure the polarization?
Compton
Luminosity
Target Boiling
Deadtime check
HRS
Measure efficiencies S2m, Cerenkov and wire chamber
Calorimeter
DC readings
Elastic Calibration
Main DVCS kinematics
12 GeV Era Run Schedule
more of that
12 GeV Era Run Schedule
and even more
