November 30, 2011 online meeting minutes: Difference between revisions
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Created page with "present: Sergey Boyarinov, Sergey Pozdnyakov 1. g14b: run started week ago, following problems were fixed: * level2 cables connected under the CLAS * several above-FASTBUS fan..." |
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* rate was 4 kHz at 85% livetime at 20nA beam current BEFORE level2 fixes, expecting improvements | * rate was 4 kHz at 85% livetime at 20nA beam current BEFORE level2 fixes, expecting improvements | ||
* remaining problems | * cmon works in electroproduction mode, see target; will calibrate and switch to photoproduction | ||
* DC noise problem was investigated, Mac found and removed aluminum foil inside region 1, hopefully it will help | |||
* remaining problems: SLM signel was broken - fixed, Moller should work; | |||
2. Test setups: | |||
* Hall D setup works, including silo part; must be ready to add tage and tage2 later | |||
* HPS: ic is installed, connected to old ADCs, IP pedestal procedure works, FX looking at them; JLAB discriminators were installed (16 CLAS, 12 from Hall D), all software is ready to program them; FADCs are installed but not connected; trigger part must be restored (will try to do it in couple of days) and read IC out with CLAS but havinf separate trigger bit from IC | |||
Revision as of 10:27, 30 November 2011
present: Sergey Boyarinov, Sergey Pozdnyakov
1. g14b: run started week ago, following problems were fixed:
- level2 cables connected under the CLAS
- several above-FASTBUS fans replaced, will continue
- several CPUs replaced because of PMC failures
- rate was 4 kHz at 85% livetime at 20nA beam current BEFORE level2 fixes, expecting improvements
- cmon works in electroproduction mode, see target; will calibrate and switch to photoproduction
- DC noise problem was investigated, Mac found and removed aluminum foil inside region 1, hopefully it will help
- remaining problems: SLM signel was broken - fixed, Moller should work;
2. Test setups:
- Hall D setup works, including silo part; must be ready to add tage and tage2 later
- HPS: ic is installed, connected to old ADCs, IP pedestal procedure works, FX looking at them; JLAB discriminators were installed (16 CLAS, 12 from Hall D), all software is ready to program them; FADCs are installed but not connected; trigger part must be restored (will try to do it in couple of days) and read IC out with CLAS but havinf separate trigger bit from IC