February 23, 2011 online meeting minutes: Difference between revisions
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* DC HV replacement was discussed, 944 fast trip was important, will discuss how to implement it in sy1527 | * DC HV replacement was discussed, 944 fast trip was important, will discuss how to implement it in sy1527 | ||
* sy1527 boards testing conditions were discussed, will set better cooling and use every other slot; max power per channel is 8W, for tests we'll limit it to 7W | * sy1527 boards testing conditions were discussed, will set better cooling and use every other slot; max power per channel is 8W, for tests we'll limit it to 7W and run 48 hours; also it is good to go up and down every hour | ||
* calibration boards for sy1527 will arrive in few month, JLAB personal was trained for calibration and repairs | * calibration boards for sy1527 will arrive in few month, JLAB personal was trained for calibration and repairs; we have spare channels and DC converter and fuses | ||
* old sy527 system need new fans (6 big and one small) if we want to use them in a future | * old sy527 system need new fans (6 big and one small) if we want to use them in a future | ||
* in general sy1527 needed at least 2U, better 3U of clear space underneas of mainframe; use side rails instead of shelfs | |||
Revision as of 11:29, 23 February 2011
present: Sergey Boyarinov, Eugene Pasyuk, Nerses, Sergey Pozdnyakov, Mark Kibilko, ...
1. Downtime work
- tagger restoration - couple weeks; tage recabling; 3 VME cpu needed; tage HV restoration; translation table for tage
- microstrip detectors - need to see if working and use for tage calibration; if does not work, will calibrate later using other microstrips (HPS SVT ?)
- trigger for g14 (HDIce) run, need to test level2 with new trigger version, or use previous one
- LabView-EPICS communication to be implemented (Chris Bass and Nerses)
- LAC: half of ADCs shows garbage, need to fix; TDCs were never tested after PRIMEX2
- no CC
2. CAEN visit
- DC HV replacement was discussed, 944 fast trip was important, will discuss how to implement it in sy1527
- sy1527 boards testing conditions were discussed, will set better cooling and use every other slot; max power per channel is 8W, for tests we'll limit it to 7W and run 48 hours; also it is good to go up and down every hour
- calibration boards for sy1527 will arrive in few month, JLAB personal was trained for calibration and repairs; we have spare channels and DC converter and fuses
- old sy527 system need new fans (6 big and one small) if we want to use them in a future
- in general sy1527 needed at least 2U, better 3U of clear space underneas of mainframe; use side rails instead of shelfs