• Main INDEX
  • Monthly INDEX
  • PREV
  • NEXT
    Make New Entry, Make Followup Entry

    User name A. Tobias

    Log entry time 08:14:26 on May19,2009

    Entry number 274717

    keyword=Owl Shift Summary: Tuesday 19 May 2009


    Owl Shift Summary: Tuesday 19 May 2009


    Shift: Al Tobias (SL), Diana Parno (TO) and Eric Jensen (3rd)


    00:00 Begin shift with production on 61.7% polarized 3He w/ 4x4mm raster and 10uA of 2427.2 MeV beam. HAPPEX run = 31394 in progress (started 22:16). No Compton this shift; the cavity does not lock.

    01:00 During runs 2443/21349 HRS DAQs not counting. Try "startcoda" on each. LHRS configured and downloaded but RHRS download failed ---> cannot connect to TS0 (right arm trigger supervisor). Reboot TS0. Then "startcoda" both. Now OK.

    01:19 Back to production running on 3He with runs 2444/21351.

    01:49 Do NMR on 3He target = 61.5%. Restart HAPPEX run = 31395.

    05:45 Do NMR on 3He taregt = 61.2%. Restart HAPPEX run = 31396.

    06:50 MCC takes beam away for beam studies. We request Controlled Access for Hall A.

    08:00 At end of shift we are in Controlled Access.



    --- RUNS -----------------------------------------------------------

    Time LHRS/RHRS
    00:04 2441/21347: 3He production, I=10uA, N=4.0M/4.3M, DT=6.6%/16.9%
    00:32 2442/21348: 3He production, I=10uA, N=4.0M/4.3M, DT=6.6%/16.8%
    01:19 2444/21351: 3He production, I=10uA, N=4.0M/4.3M, DT=6.5%/16.8%
    01:51 2445/21352: 3He production, I=10uA, N=4.0M/4.3M, DT=6.6%/16.8%
    02:20 2446/21353: 3He production, I=10uA, N=4.0M/4.3M, DT=6.6%/17.1%
    02:50 2447/21354: 3He production, I=10uA, N=4.0M/4.3M, DT=6.6%/16.8%
    03:20 2448/21355: 3He production, I=10uA, N=4.0M/4.3M, DT=6.6%/16.9%
    03:48 2449/21356: 3He production, I=10uA, N=4.0M/4.3M, DT=6.6%/16.9%
    04:17 2450/21357: 3He production, I=10uA, N=4.0M/4.3M, DT=6.8%/16.8%
    04:46 2451/21358: 3He production, I=10uA, N=4.0M/4.4M, DT=9.1%/16.8%
    05:16 2452/21359: 3He production, I=10uA, N=4.0M/4.3M, DT=6.6%/17.4%
    05:46 2453/21360: 3He production, I=10uA, N=4.0M/4.3M, DT=6.5%/17.0%
    06:27 2454/21361: 3He production, I=10uA, N=4.0M/4.3M, DT=6.6%/16.9%

    * "junk" runs during TS0 hangup: 2443/21349 & 21350