G2p optics
From Hall A Wiki
Contents
Summary of Optics Plan
Define the following jobs: A. Acceptance calibration, sieve out, rasters on and off (large C12, no LHe) B. Delta scan, (sieve in, C12, no LHe) C. Beam position scan (Sieve in, large C12, no LHe, 8 points on x,y axis and 4 additional points at corner) D. Pointing (Sieve in, CH2, need to refill LHe)
1. 0T @ 2.257:
Do A, move sieve in, do B and C(12 points), refill LHe do D. At the end take elastic NH3 data to check NH3 thickness. When finish: move sieve out; Ramp field up to 2.5T; Drain LHe
2. 2.5T, 90deg @ 2.257:
Do A, move sieve in, do B and C(12 points), refill LHe do D. When finish: Ramp field up to 2.5T; Drain LHe out
3. 5.01T, 6deg @ 2.257:
Do B and C(8 points), refill LHe do D.
4. 2.5T, 90deg @ 1.706:
Do A, move sieve in, do B and C(8 points), refill LHe do D. When finish: Rotate target field to 6 deg; Ramp up to 5.01T; Darin LHe out
5. 5.01T, 6deg @ 1.706:
Do B and C(8 points), refill LHe do D When finish: Move sieve out; Rotate target field to 90 deg; Ramp up to 5.01T; Drain LHe out
6. 5.01T, 90deg @ 2.257:
Do A, move sieve in, do B and C(8 points), refill LHe do D. When finish: Turn off target field; Drain LHe, move sieve out.
7. 0T @ 1.159:
Do A, move sieve in, do B and C(8 points), refill LHe do D. At the end take elastic NH3 data to check NH3 thickness. When finish: move sieve out; Ramp field up to 2.5T; Drain LHe out
8. 2.5T, 90deg @ 1.159:
Do A, move sieve in, do B and C(8 points), refill LHe do D. When finish: Ramp field up to 5.01T; Drain LHe out
9. 5.01T, 6deg @ 1.159:
Do B and C(8 points), refill LHe do D.
- Overall G2P|GEP optics plan
- 2.253GeV_0T_optics_runplan
- 2.253GeV_2.5T_90deg_optics_runplan
- 2.253GeV_5.0T_6deg_optics_runplan
With new right septum
For commissioning:
