02-15-2011 owl shift summary

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User name efuchey

Log entry time 08:02:20 on February15,2011

Entry number 346989

keyword=02-15-2011 owl shift summary

Shift crew:

SL: Eric FUCHEY
TO: Eliazer PIASETZKY
3rd: Khem CHIRAPATPIMOL

12:00 am: Taking over the previous shift: Setting up back the VDC gas flow, fixing ROC 5
12:25 am: Target moved to 4cm LH2;
12:30 am: beam 2 uA, gives 25%;
1:00 am: Raster set up at 4x1.5 (2mmx2mm);
1:30 am: asked for controlled access, to try to fix a problem with the trigger;
2:20 am: getting back to beam permit;
5:20 am: swithcing to optics target;
6:05 am: switching to LH2 4cm;
7:15 am: target changed to LD2 4cm, left arm changed to 56 degrees and 0.899 GeV,
7:40 am: right arm finally arrived to 1.850 GeV; Starting neutron detection efficiency until the end of the shift.

Run list:

1350: LH2 4cm, 2 uA, ps1=ps5=1 test run;
1351: junk;
1352: junk;
1353 to 1361: daq tests;
1362: LH2 4cm, 2 uA, ps1=ps2=ps4=ps5=1, ps3=40 +4% RHRS delta scan;
1363: junk;
1364: junk;
1365: LH2 4cm, 2 uA, ps1=ps2=ps4=ps5=1, ps3=40 +2% RHRS delta scan;
1366: junk;
1367: LH2 4cm, 2 uA, ps1=ps2=ps4=ps5=1, ps3=40 0 RHRS delta scan;
1368: LH2 4cm, 2 uA, ps1=ps2=ps4=ps5=1, ps3=40 -2% RHRS delta scan;
1369: Optics, 3 uA, ps1=ps2=ps4=ps5=1, ps3=40 -2% RHRS delta scan;
1370: Optics, 3 uA, ps1=ps2=ps4=ps5=1, ps3=15 -2% RHRS delta scan;
1371: LH2 4cm, 3 uA, ps1=ps2=ps4=ps5=1, ps3=10 singles;
1372: Junk;
1373: LH2 4cm, 2 uA, ps1=ps2=ps4=ps5=1, ps3=20 -4% RHRS delta scan;
1374: Cosmic;
1375: Junk;
1376: Junk;
1377:
1378: LD2 4cm, 5uA, ps1=ps2=ps4=ps5=1, ps3=10 neutron detection efficiency;