G2p optics

Short Optics Plan

Define the following jobs:

A. Acceptance calib, sieve out, raster on and off (large C12, no LHe) 
B. Delta scan, (sieve in, C12, no LHe) 
C. Beam persion 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 refill LHe)

Here is the summary of all optics:

# 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; Drian LHe

# 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; Drian Lhe out
# 5.01T|6deg @ 2.257: Do B and C(8 points), refill LHe do D. 
# 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; Drian Lhe out
# 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
# 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; Drian Lhe, move sieve out.
# 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; Drian Lhe out
# 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; Drian Lhe out
# 5.01T|6deg @ 1.159: Do B and C(8 points), refill LHe do D

• Detail G2P|GEP optics plan

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For commissioning:

• Procedure suggested by Vince
• Procedure suggested by Jin