Log entry time 10:03:53 on July24,2004

Entry number 129534

♦ owl shift summary - 07/24/04 ♦



♠ From 0000 to 0140, Bob M. was doing background studies, see halog 129477.

♠ From 0349 to 0635, Rob F. was doing Q2 (halog 129517) and Dummy Al Target studies (halog 129524).

♠ Started losing cyrolevels in magnets at the end of the shift, see halog 129531

♠ Otherwise, production running.  Ended shift with 2.5 runs in IHWP = IN slug



HAPPEX DAQ = runs 3108-3118

SPECTR DAQ = runs 1293-1300



0000:0012       run 3108,  20k, IHWP = OUT, right = production, background in left = +10%

0012:0049       ramping left HRS to +8%

0018:0030       run 3109,  22k, IHWP = OUT, right = production, ramping left to +8%

0032:0049       run 3110,  29k, IHWP = OUT, right = production, ramping left to +8%

0049:0100       run 3111,  20k, IHWP = OUT, right = production, background in left = +8%

0100:0110       ramping left HRS to +4%

0110:0122       run 3112,  20k, IHWP = OUT, right = production, background in left = +4%

0122:0129       ramping left HRS to +2%

0129:0140       run 3113,  20k, IHWP = OUT, right = production, background in left = +2%

0140:0151       finished dipole background scan (halog 129477), ramping left HRS to 0%

0151:0247       run 3114, 100k, IHWP = OUT, production (both arms)

0155            bleedthrough = 1.13%, see halog 129485

0247:0252       IHWP = IN ← OUT, see halog 129483

0252:0349       run 3115, 100k, IHWP = IN, production (both arms)

0349:0437       switching to spectrometer DAQ, see halog 129506

0437:0439       run 1293, junk → ROCs need rebooting

0442:0455       run 1294, 704k, 0.2 µA, LH2, beam position in x is low (-200µm)

0443:0505       run 1295, junk → beam spot/position check

0505:0516       run 1296, junk → beam spot/position check, VDCs off

0516:0521       run 1297, 304k, 0.2 µA, LH2, beam position is well centered (halog 129529)

0533:0537       run 1298,  22k, 0.2 µA, 20 cm Dummy Al, beam position is well centered

0537:0548       run 1299, 251k, 1.0 µA, 20 cm Dummy Al, beam position is well centered

0548:0604       switching to HAPPEX DAQ, see halogs 129515 & 129520

0604:0606       run 1300, junk → beam spot check

0604:0612       run 3116,  15k, IHWP = IN, 20 cm Dummy Al target background study

0635:0720       run 3117, 100k, IHWP = IN, production (both arms)

0713            bleedthrough = 1.15%, see halog 129525

0721:0751       run 3118,  54k, IHWP = IN, production (both arms) ended early due to cyrolevel drop in magnets

0747:0800       HRS magnets tripping off due to loss of cryolevels, see halog 129531