Log entry time 00:06:24 on June 2,2009

Entry number 278347

Day shift summary: S. Sirca (SL), A. Shahinyan (TO), D. Flay (3rd)

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EVENTS

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Initial conditions:

16:49  Left-HRS moved to 12.5 deg and set to 2400 MeV/c.  Cycled Q2 and Q3.

16:49  BigBite moved back to 75.0 deg remaining at 518A (515.443A readback).

16:55  Requested beam permit.

17:15  Turn lasers off to see BeO target.

17:22  Check beam spot on BeO target with 2uA (7x5 MCC raster)

17:30  Check T3 rates on target with 2uA (7x5 MCC raster)

17:30  Turn lasers back on

18:50  Many ROCs and TSs in disarray due to high rates, restarted all

19:15  Target to polarized He3

19:36  NMR 57.78

20:05  Target to reference cell with D2 (145 psig)

20:34  Check rates wrt raster size, BPM, spot++

21:03  Target purged and filled with N2 (20 psig)

21:16  Started new Compton run #17120. Had to restart Coda before

       being able to start a new run.

21:35  Target to polarized He3

21:56  Left-HRS to 2.320 GeV/c

22:00  Start production running on He3



RUNS-L/BB

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#3065      spot++ check only

#3066-3072 junk/troubleshooting runs due to CODA problems

#3073-3075 polarized He3 elastic runs, #3075 is the best

#3076      D2 ref.cell, 2uA, ps3=10 ps4=5 ps6=2

#3077      D2 ref.cell, 2uA, ps3=1 ps4=1 ps6=2

#3078      D2 ref.cell, 10uA, ps3=5 ps4=5 ps6=2

#3079      N2 ref.cell, 10uA, ps3=5 ps4=5 ps6=2

#3080      pol. He3, production, 8uA, ps3=100 ps4=5 ps5=ps6=1, checkout

#3081      pol. He3, production, 4.0M, 10uA.<<<<< good He3 runs start here

#3082      pol. He3, production, 4.0M, 10uA 

#3083      junk

#3084      pol. He3, production, 4.0M, 10uA 

#3085      pol. He3, production, 4.0M, 10uA

RUNS-R/ND

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#21942-21944 status unknown 

#21945-21951 junk/troubleshooting runs due to CODA problems

#21952       N2 ref.cell, 10uA 

#21953       pol. He3, production, 8uA, checkout

#21954       pol. He3, production, 2.9M, 10uA <<<<< good He3 runs start here

#21955       pol. He3, production, 3.1M, 10uA 

#21956       junk

#21957       pol. He3, production, 2.5M, 10uA 

#21958       pol. He3, production, 2.6M, 10uA