Difference between revisions of "G2p optics"

Revision as of 11:51, 1 March 2012

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:

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; Drian 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; Drian 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; Drian 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; Drian 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; Drian 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; Drian Lhe out

9. 5.01T|6deg @ 1.159: Do B and C(8 points), refill LHe do D

• Detail G2P|GEP optics plan

For commissioning:

• Procedure suggested by Vince
• Procedure suggested by Jin