Log entry time 16:02:05 on November18,2007

Entry number 215362

08:00 waiting for beam harp scan result, both spectrometers are at the correct configuration. Compton rate looks normal (5KHz at 5uA);



9:20 beam position, size (harp), and raster are all okay now, start taking data (3 runs), but later found they are with high Compton beam.



10:10 noticed Compton rate is very high. Asked for beam retune on the empty target.



11:05 Beam is good now. Reboot right arm CODA (no event coming in);



11:15 Moved to Fe-beam-right, start production with Pleft=814.648, Pright=708.181



12:12 Change P settings to Pleft=759.552, Pright=615.628

12:17 Left arm ready



12:25-12:33 change left P to 708.181;



13:45-14:18 RF problem, beam off.



14:33-15:14 change right P to 535.170;



15:06-15:11 change left P to 660.285;



Run list:



Left arm:



Run#/ Target/ P0/ Current/ start/ stop/ comment 



2602/Empty/ 815/ 5uA/ spot size check

2603/Empty/ 815/ 5uA/ spot size check

2604/Empty/ 815/ 5uA/ spot size check



2605/Fe_right/ 815/ 50uA/ high Compton count

2606/C_right/ 815/ 50uA/ high Compton count

2607/dummy/ 815/ 50uA/ high Compton count



2608-2609/ Empty/ 815/ 50uA/ spot size check



2610/ Fe_right/ 815/ 50uA/ good

2611/ C_right/ 815/ 50uA/ good

2612/ dummy/ 815/ 50uA/ good

2613/ Pb / 815/ 25uA/ good

2614/ He / 815/ 50uA/ good



2615/ He / 760/ 50uA/ good

2616/ Pb / 760/ 50uA/ good

2617/ dummy / 760/ 50uA/ good

2618/ C_right / 760/ 50uA/ good

2619/ Fe_right / 760/ 50uA/ good



2620/ He / 708/ 50uA/ good

2621/ Pb / 708/ 50uA/ good

2622/ dummy / 708/ 50uA/ good

2623/ C_right / 708/ 50uA/ good

2624/ Fe_right / 708/ 50uA/ good



2625/ Fe_right / 660/ 50uA/ good

2626/ C_right / 660/ 50uA/ good

2627/ dummy / 660/ 50uA/ good

2628/ Pb / 660/ 50uA/ good

2629/ He / 660/ 50uA/ on-going



-----------

Right arm:

-----------



Run#/ Target/ P0/ Current/ start/ stop/ comment



20954/Empty/ 708/ 5uA/ spot size check

20955/Empty/ 708/ 5uA/ spot size check

20956/Empty/ 708/ 5uA/ spot size check



20957/Fe_right/ 708/ 50uA/ high Compton count

20958/C_right/ 708/ 50uA/ high Compton count

20959/dummy/ 708/ 50uA/ high Compton count



20960-20962/ Empty/708/ 50uA/ spot size or DAQ check



20963/ Fe_right/ 708/ 50uA/ good

20964/ C_right/ 708/ 50uA/ good

20965/ dummy/ 708/ 50uA/ good

20966/ Pb/ 708/ 25uA/ good

20967/ He/ 708/ 50uA/ good



20968/ dummy/ 616/ 50uA/ good

20969/ C_right/ 616/ 50uA/ good

20970/ Fe_right/ 616/ 50uA/ good

20971/ He/ 616/ 50uA/ good

20972/ Pb/ 616/ 50uA/ good



20974/ C_right/ 535/ 50uA/ forgot to change PS

20975/ C_right/ 535/ 50uA/ good

20976/ dummy / 535/ 50uA/ good

20977/ Pb / 535/ 50uA/ good

20978/ He / 535/ 50uA/ on-going