Log entry time 00:04:20 on April18,2011

Entry number 356072

SWING shift summary | S. Sirca (SL), P. Zhu (TO), M. Mihovilovic (3rd)

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Events

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16:00  Taking over from day shift with boiling studies

17:05  Moving to 20cm LD2 target 

17:15  Trying to tweak the cryo targets to have more cooling power on LD2

       and less on 4He (see (*1))

18:38  Moving to BeO target 

18:08  Moving to optics target

19:40  Starting to move to kinematics 5.1

19:56  HRSL OK for kinematics 5.1, requesting 20uA on LD2

20:15  After minor adjustment of JT valves on 4He/LD2, requesting 45uA on LD2

21:00  HRSR OK for kinematics 5.1



Runs

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#3629  15:52-16:02  60uA on 12C (3.10M, continuation of boiling studies)

#3630  16:08-16:22  45uA on 12C (2.59M)

#3631  16:25-16:26  30uA on 12C JUNK, wrong prescales

#3632  16:28-16:38  30uA on 12C (1.71M)

#3633  16:41-16:52  15uA on 12C (0.86M counts only, add another run)

#3634  16:54-17:01  15uA on 12C (0.46M)

#3635  17:11-17:13  60uA on LD2 (run stopped because target was not OK (see *1))

#3636  17:31-17:35  15uA on LD2 JUNK, target not stable

#3637  17:37-18:07  15uA on LD2 (5.09M)

#3638  18:10-18:21  30uA on LD2 (2.13M)

#3639  18:27-18:37  45uA on LD2 (2.29M)

#3640  18:47-19:02   5uA on BeO (0.12M)

#3641  19:12-19:35   5uA on optics target (0.13M)

#3642  20:30-20:34  45uA on LD2 JUNK, wrong prescales

#3643  20:36-20:58  45uA on LD2 (1.15M) HRSL only: HRSR D1 still settling

#3644  21:00-22:03  45uA on LD2 (3.20M) first run in kin 5.1 with both HRSL and HRSR

#3645  22:04-23:06  45uA on LD2 (3.08M) 

#3646  23:07-00:03  45uA on LD2 (2.92M) 







Comments

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(*1) the heater for LD2 went to zero.upon 60 uA, Alex adjusted JT valves