Long term Long term HAPPEX run plan by Kent
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Message ID: 1669 Entry time: Sat Aug 8 23:55:15 2009 Author: Kent Paschke Type: Other Subject: HAPPEX-III Run Plan
Here is a data dump of my notes on the HAPPEX-III run plan. Detailed prioritization/ordering does not have be done now, but I do need to separate needs from wants in the initial commissioning as well as better match up dependencies between the different steps.
Mon Aug 17 - Restore
Tue Aug 18 - Restore
Wed Aug 19 - Collab Tests
Thu Aug 20 - Collab Tests
Fri Aug 21 - Commission [1 pass] (Watercell, optics, lead detector low current studies)
Sat Aug 22 - Commission [1 pass] (Watercell, optics, lead detector low current studies)
Sun Aug 23 - Commission [1 pass] (Watercell, optics, lead detector low current studies)
Mon Aug 24 - Day shift: remove water cell. Liquify target. stay at 1 pass.
Tue Aug 25 - Pass change to 3-pass. Remove Lead target, position HAPPEX detector.
Wed Aug 26 - Commission [3 pass]
Thu Aug 27 - Commission [3 pass]
Fri Aug 28 - Commission [3 pass] -> Move to production
1-pass Commissioning: 8/20-8/25
o Optics + watercell. (Nilanga) [2 shifts] ( done )
o Lead detector low current studies. (McNulty) [2 shifts]
o Bullseye scan?
o Arc Beam energy measurement Aug 22 (Arun) [1 shift]
o Lead detector high-current test - Aug 24-25 (Kumar) [1 shifts]
o 240 Hz noise study - Aug 25 (Kumar) [0.5 shifts]
3-pass Commissioning: 8-25 -? o Commission cryotarget [1]
o Establish luminosity limits (target, radiation, source) [1] (done)
o Compton background reduction [1] [3] ( done )
o Position compton photodetector (B. Quinn) [1] [3] ( done )
o Electron detector commissioning (A. Camsonne) [1] [3]
o Moller systematics study and commissioning (Sasha) [1 shift] [1] [3] ( 80 % done )
o Mini-spin dance to tune wien angle (Sasha) [1 shift] [1] [3] ( sunday or monday )
o Establish trajectory on target (lumi? HRS optics?) [1]
o 3-pass optics cross-check (Nilanga) [3] ( optics run with sieve on hydrogen and optics )
o position H-III detector in HRS FP. (Dustin) [1]
o H-III detector Q2 measurement (Nilanga / Dustin) [1]
o BCM calibration (Paschke) [0.5 shift] [1] [2] [3]
o fixed-gain BPM calibration (Paschke) [0.5 shift] [1] [2] [3]
o Dithering magnet checkout (Paschke) [0.25 shift] [1] [3]
o HCBA qualification [1] [3]
o commission charge feedback system [1] [2] [3]
o IPM cavity triplet high-current commissioning [2] [3]
o IPM cavity triplet nanoamp commissioning [2] [3]
o target boiling / width studies
Notes: [1]: necessary for start of production [2]: can be done at 1 pass
[3]: can be done without cold target
Special Measurements:
-- periodic -- o Moller measurements (more than 1/week, but frequency depends on Compton performance)
o Q2 measurements. (not less than 1 per week)
o detector linearity studies
o BCM calibration. (not less than 1 in three weeks)
o BPM fixed-gain calibration (not less than 1 in three weeks)
-- Single (or few) time -- o mini-spin dance to check transverse polarization (as needed)
o Q3/Dipole rescattering rate study (2x?)
o rescattering radiative tail cross-section study
o beam energy measurement (3-pass)
o Dummy Al Target background study ( at least 2x )
o Warm cryo-cell Aluminum background study
o Transverse Asymmetry study? ELOG V2.6.5-1844
