Here is the optics plan for 2.254GeV with 5.01T at 90 degrees target field. Before doing optics, beam center and slow raster size have to be determined. L-HRS and R-HRS start at 0% (P0=2.251 geV/c), assuming right septum current can go a high as 965A. Take 2 runs(each run 500k events) for each point.
0. Draining LHe, take C12 data at the same time. (40 minutes)
1. Pointing: 250-mil-CH2, sieve in ,delta=0, no rasters (30 minutes) Take data till the H peak of a normal sieve hole can be fit. 2. Acceptance calibration, part 1: C12, sieve in, delta=0 (10 minutes) 1) both rasters on
3. Beam position scan: C12, delta=0; sieve in, slow raster only, (80 minutes, 25 minutes each setting) Config the slow raster to jump in the following way: 1)between (x=-5, y=-5) and (5,5) 2)between x=0, y=+/-5 3)between x=+/-5, y=0
4. Delta scan: 100-mil-C12, sieve in , no raster (3 hours) Cycle Left Q2 and Q3, started from -3% at left arm and 0% at right arm. Left HRS: 0%, 1%, 3%, Cycle Left Q2 and Q3 to -3%, -1% Right HRS: 0%, 1%, 3.5%
**Escorted access to move sieve out when finish, and ramp dipoles back to 0% (40 minutes)
5. Acceptance calibration, part2: C12, sieve out, delta=0 (20 minutes) 1) no rasters 2) both rasters
Estimated time: 7 hours
At the end of the optics, refill LHe, change to the 1st production point, start dilution runs then polarize NH3 target.