Status of HRS Optics
From APEXwiki
Summary
Updated on July 02, 2010 by Jin Huang
| HRS | Variable | Available Data | Planned Data | Further Data Needed | Matrix Status |
|---|---|---|---|---|---|
| LHRS w/ PREX septum | theta | June 26 Sieve data | None | None | Yi matrix for Online |
| phi | June 26 Sieve data | None | None | Yi matrix for Online | |
| vertex z | Run 1345-1346 | None | None | Online matrix Calibrated | |
| dp | June 26 Sieve data for 0% to +4% | None | calibrate -5% to 0% | Yi matrix for Online | |
| LHRS w/ APEX septum | theta | Could use calibration with PREX septum | None | None | Yi matrix for Online |
| phi | Could use calibration with PREX septum, But there will be offsets | None | 1 pass sieve run with APEX septum configuration | Yi matrix for Online | |
| vertex z | None | 2 pass data during R-HRS optics run | None | Yi matrix for Online | |
| dp | Could use calibration with PREX septum (0% to 4%) But there will be offsets | None | 1 pass elastic scan from -4% to 4%? | Yi matrix for Online | |
| LHRS w/ APEX septum | theta | none | positron sieved run | None | Yi matrix for Online |
| phi | none | positron sieved run | None | Yi matrix for Online | |
| vertex z | none | 2 pass run w/o sieve | None | Yi matrix for Online | |
| dp | none | None | search for edge of LHRS coincidence phase space limit? | Yi matrix for Online |
Miss data and discussion
- LHRS ph with APEX momentum setting
- Require a sieved run with APEX septum configuration
- Any model of septum to correct?
- Size of offset could be demonstrated comparing un-sieved run with APEX and PREX septum
- LHRS dp (-4% to 0%)
- go to lower beam energy than 1.1155GeV?
- increase septum current to 830A?
- other low sharp peak with p<1.16GeV @ 5degree.
- RHRS dp
- search for edge of LHRS RHRS coincidence data and calibrate with edge of e+ phase space limit? (suggested by Phillips)
