08:49:00 AM
09:02:00 AM
perpendicular
Carbon
large
Y
GOOD
On
Moved to carbon target
09:09:00 AM
09:14:00 AM
09:15:00 AM
09:20:00 AM
09:30:00 AM
09:32:00 AM
09:33:00 AM
09:39:00 AM
09:46:00 AM
Moved to carbon target, raster study
09:47:00 AM
09:55:00 AM
09:56:00 AM
12:00:00 AM
10:18:00 AM
10:29:00 AM
10:30:00 AM
10:33:00 AM
11:45:00 AM
10:45:00 AM
NH3
top
Moved to NH3 top , part of bigcal is off
11:50:00 AM
Prod. run
01:20:00 PM
02:18:00 PM
botom
02:20:00 PM
03:22:00 PM
04:25:00 PM
05:07:00 PM
Prod. run The run was stopped because we lost the polarization about 3 min ago
05:18:00 PM
06:14:00 PM
06:25:00 PM
07:03:00 PM
Prod. run At the end the polarization died, 2 min before the stop.
07:15:00 PM
08:11:00 PM
08:17:00 PM
09:07:00 PM
09:10:00 PM
10:01:00 PM
JUNK
Off
Rater -Off Size -0 : Junk
10:11:00 PM
11:12:00 PM
11:16:00 PM
12:03:00 AM
12:07:00 AM
Microwave was put on standby We fell to a polarization of 53% in the bottom target before stopping the run. we would start with Top target after this access.
01:12:00 AM
01:31:00 AM
Test
01:35:00 AM
02:26:00 AM
02:27:00 AM
03:13:00 AM
04:07:00 AM
04:08:00 AM
04:56:00 AM
04:57:00 AM
05:50:00 AM
05:51:00 AM
06:40:00 AM
06:41:00 AM
07:34:00 AM
07:36:00 AM
08:26:00 AM
Prod. run beam current 80nA -> 100nA
08:27:00 AM
09:01:00 AM
Prod. run Stopped by target problem(magnet fill valve)
09:34:00 AM
10:20:00 AM
Packing fraction Carbon target with boiling off He in the nose
10:38:00 AM
10:51:00 AM
02:25:00 PM
02:27:00 PM
hole
BigCal LED run
06:07:00 PM
06:17:00 PM
CrossHair+He
08:59:00 PM
09:28:00 PM
09:59:00 PM
10:16:00 PM
This run gave a strange raster and the efficiency of bigcal dropped and we are missing the cross hair and seem to be hitting the top.
This run still gives a strange raster!?
08:05:00 AM
08:12:00 AM
N
Beam trips 2 min after run start
08:19:00 AM
Beam trips 2 min after run start.
08:51:00 AM
09:00:00 AM
Beam trips 2 min after run start.The run is stopped because the the chiller for the mechanical pumps was very hot. An access is requested by the target group.
10:44:00 AM
11:15:00 AM
11:16:00 AM
11:00:00 AM
The HV on 7 channels on Bigcal have been modified. Stopped for the access for target work
04:02:00 PM
04:09:00 PM
CrossHair
Cross hair. Most of the tme with helium in nose
04:59:00 PM
05:30:00 PM
First run after polarization.
05:31:00 PM
05:45:00 PM
Run interrupted due to pump cooling problem.
07:18:00 PM
07:51:00 PM
07:52:00 PM
08:24:00 PM
08:58:00 PM
Varied the current between 60 and 80 nA during run to check on the effect on the dead time and target polarization.
09:04:00 PM
09:31:00 PM
He level too low in nose lost polarization lost during approz the las 5 min of run. 1/2 wave plate seems to be in.
10:02:00 PM
10:33:00 PM
11:00:00 PM
First run after chiller problem. The polarization is still building up. Polarization lost at end
11:06:00 PM
11:41:00 PM
06:42:00 AM
07:16:00 AM
Lost polarization and ended run.
07:46:00 AM
08:44:00 AM
08:15:00 PM
-1
HMS HV tripped
08:18:00 PM
08:27:00 PM
Magnet quenched
05:15:00 PM
05:25:00 PM
Centering target.
06:18:00 PM
run during polarizing
06:52:00 PM
07:07:00 PM
top cell was receiving microwve instead of bottom target.
07:09:00 PM
07:30:00 PM
07:39:00 PM
08:25:00 PM
08:57:00 PM
lost HMS HV during run
09:32:00 PM
09:33:00 PM
10:09:00 PM
10:10:00 PM
10:43:00 PM
10:45:00 PM
11:23:00 PM
11:25:00 PM
11:56:00 PM
Cherenkov efficiency run
11:57:00 PM
12:05:00 AM
NH3 top. Production run. I=85 nA
12:31:00 AM
12:48:00 AM
01:28:00 AM
02:01:00 AM
02:02:00 AM
02:39:00 AM
02:40:00 AM
03:12:00 AM
03:48:00 AM
03:49:00 AM
04:33:00 AM
04:34:00 AM
05:06:00 AM
05:16:00 AM
NH3 top. Production run. I=85 nA Lost connection with NMR computer, we don't know about the polarization at the end exactly.
04:07:00 PM
04:20:00 PM
production data.
04:41:00 PM
04:44:00 PM
Test 100 nA ps1=2 ps4=1
04:45:00 PM
04:48:00 PM
Test 100 nA ps1=1 ps4=2
04:49:00 PM
04:50:00 PM
Test 100 nA ps1=1 ps4=1
09:58:00 PM
10:00:00 PM
10:47:00 PM
12:35:00 AM
01:30:00 AM
02:25:00 AM
03:00:00 AM
03:50:00 AM
03:55:00 AM
04:00:00 AM
04:45:00 AM
05:00:00 AM
C+He
C+He3 target waiting for HMS rates to drop so we can take pure C data
06:50:00 AM
08:08:00 AM
C with nose empty
08:59:00 AM
09:21:00 AM
C with cerenkov threshold reduced to -180 mV (from -270 mV )
02:32:00 PM
03:44:00 PM
LED run with ps7=1, target magnet quenched.
09:35:00 PM
Rater -Off Size -0.0 HalF Plate -1 : Moller test run - junk just to check coda is working.
11:01:00 PM
Rater -Off Size -0.0 HalF Plate -1 : Moller run with 5 million coincidence events
11:03:00 PM
11:50:00 PM
Rater -Off Size -0.0 HalF Plate -1 : Moller run with 2.9 million coincidence events. Ended run to allow controlled access to reboot target ioc and the cryo-computer in the hall.
01:25:00 AM
NH3 Bottom with 85nA beam. Tracker HV seems to be off. Targetgui cpu lost connection.
03:24:00 AM
03:39:00 AM
NH3 Bottom with 85nA beam. After we turned on all HV for BETA detector. Stopped to examine slow raster, which is suspected of being too big.
04:15:00 AM
Study of raster size, which is suspected of being too big.
04:13:00 AM
04:37:00 AM
05:49:00 AM
05:52:00 AM
05:54:00 AM
06:06:00 AM
Try smaller raster. Use preset 1
06:09:00 AM
06:19:00 AM
06:59:00 AM
07:12:00 AM
07:15:00 AM
07:26:00 AM
07:29:00 AM
07:30:00 AM
BCM calibration; 50nA
07:32:00 AM
07:33:00 AM
BCM calibration; 65nA
07:58:00 AM
BCM calibration; 85nA, 100nA, 120nA, 140nA, 160nA, 180nA, 200nA, then back to 85nA
07:59:00 AM
08:29:00 AM
85nA; cycled Bd, Be, Bz magnets.
08:33:00 AM
08:42:00 AM
85nA; Mark turned off Slow raster one coordinate (circle 2).
09:05:00 AM
85nA; Mark turned off Slow raster coordinate circle 1.
09:06:00 AM
09:08:00 AM
85nA; Mark turned off Slow raster coordinate circle 2.
09:17:00 AM
85nA; Slow raster is OFF
09:29:00 AM
85nA; Slow raster circle 1 is ON, and we switched input slow raster in ADC
09:37:00 AM
85nA; Slow raster circle 1 is ON, and we switched back input slow raster in ADC
09:54:00 AM
10:01:00 AM
85nA; Slow raster circle 1 is ON, and we updated threshold file for HMS (was wrong before)
04:15:00 PM
04:42:00 PM
Scalers screen shows 110 nA current. Also, BETA1 = 4.8k, BETA2 = 623
05:55:00 PM
bigCal.tcl screen now shows 100 nA current. BETA2 = 636. New tracker HV settings Ended run at 2.80 M events, took 1 h 11 min.
05:58:00 PM
07:01:00 PM
bigCal.tcl screen now shows 92 nA current. BETA2 = 565.
08:16:00 PM
BigCal.tcl screen now shows 78 nA current. BETA2 = 483.
08:21:00 PM
09:24:00 PM
BigCal.tcl screen now shows 78 nA current. BETA2 = 552.
09:25:00 PM
09:26:00 PM
Lost polarization because pumps tripped
10:53:00 PM
C run at new HMS settings 1.65 GeV, 18 deg. while boiling LHe off.
03:09:00 AM
03:20:00 AM
Current Jumped to 200 NA
03:35:00 AM
04:25:00 AM
04:35:00 AM
05:25:00 AM
04:35:00 PM
04:52:00 PM
05:16:00 PM
05:32:00 PM
Back to nominal trigger. ps1=1, ps6=1
09:19:00 PM
10:08:00 PM
Bottom target, no polarization, trigger. ps1=1, ps6=1
11:08:00 PM
Bottom target, polarization -9.5%, trigger. ps1=1, ps6=1
11:09:00 PM
12:12:00 AM
Rater -On Size -0.95 HalF Plate -1 : Production; NH3 Bottom, 80nA
01:10:00 AM
st 981000 went back to 85nA. Beam was turned off for couple minutes to see if polarization is increasing .
01:40:00 AM
After 260000 Events went back to 100nA.Event Builder died.
02:30:00 AM
03:30:00 AM
04:20:00 AM
in the middle the current was changed to 90nA
04:30:00 AM
05:20:00 AM
starting from 177K we increased current to 90nA
05:35:00 AM
05:05:00 AM
06:08:00 AM
06:15:00 AM
Run Just before Optics study
Run After Optics study HMS angle was changed to 18 degree but I am not sure if momentum change took place or not. I changed 2.2 to 1.65 pressed the enter the set point on HMS Dipole NMR changed but the green position did
04:55:00 AM
Beam is off in X direction.
Beam is off in X direction. IPM3H00A died. Raster is asymmetric. Scraping the side . The positions are 3H00B x=0 y=0
moved target to position 0.172 Seems to be centered bus scraping the side
3H00B x was changed to -1. Previous change in raster size did not actually decreased the size to 1.9. Maybe because the raster is not symmetric. This position centered the target.
06:00:00 AM
06:30:00 AM
Starting with 50 nA to check if we are well centered on NH3 target. Moved to 85 nA after 50000 and after we made sure that we are not hitting the target walls. At 6:30 we lost beam for quite some time.
08:10:00 AM
Bigcal threshold was decreased to 500mV for larger angles
08:11:00 AM
08:00:00 AM
Bigcal threshold was decreased to 500mV for larger angles HMS drift chambers stopped working-->no gas flow. Ended run to change prescales to get rid of HMS rate, since HMS useless with no chambers.
First run with HMS singles prescaled out, because HMS drift chambers off, because no gas flow.
10:10:00 AM
10:59:00 AM
11:48:00 AM
12:19:00 PM
ended early to turn on HMS drift chambers
12:21:00 PM
01:02:00 PM
first run with drift chambers on, ps1=1
03:09:00 PM
04:32:00 PM
04:33:00 PM
05:19:00 PM
05:29:00 PM
05:49:00 PM
06:50:00 PM
06:51:00 PM
07:37:00 PM
HMS drift chambers still not functioning properly, so we have prescaled them out of the data stream
08:28:00 PM
09:12:00 PM
09:20:00 PM
Doing helium boil-off from the nose with the carbon target before doing the target anneal.
09:36:00 PM
Clean carbon run with an empty nose, before doing the target anneal. Reset prescale factor for HMS to ps1=1 in order to check HMS drift chambers.
10:15:00 PM
10:27:00 PM
Short run with cross-hair target while nose is empty before doing the target anneal.
10:56:00 PM
Short run with 8mm target while nose is empty before doing the target anneal.
02:00:00 AM
The raster is not centered at x=-2. in BPM positions. Moved to x=-1.
02:10:00 AM
The raster is not centered at x=-1. in BPM positions. Moved to x=-0.
The raster is centered at x=-0. in BPM positions. Cross hair is 1 mm higher than the center.
02:50:00 AM
\
03:10:00 AM
I hope He4 is there We checked cross hair We are scraping the cup.
03:15:00 AM
Moved to 3H00A x=-0. y=-0.66 3H00B x=-0.5 y=-0.3 Now we are centered.
03:25:00 AM
04:10:00 AM
Moved to 3H00A x=-0. y=-0.66 3H00B x=-0.5 y=-0.3 Now we are centered. Started the Run to not waist the time. At the same time increasing the polarization.
04:12:00 AM
05:13:00 AM
Beginning of the run is 50nA
05:59:00 AM
06:45:00 AM
07:25:00 AM
starting from 1400000 events polarization is around 60% I increased current to 100nA to collect more data. Rates on Bigcal 9.2K Beta2 rates are 1.6K Computer dead time is 22% We are collecting with 1.5k rate.
08:02:00 AM
08:30:00 AM
HMS drift chambers turned off. Turned back on
12:15:00 AM
12:25:00 AM
Raster check.
12:30:00 AM
01:55:00 AM
Good NH3 data
Good NH3 data. IOC crushed at the end. Polarization dropped to 0
03:05:00 AM
Good NH3 data.
03:36:00 AM
04:36:00 AM
05:36:00 AM
06:25:00 AM
07:45:00 AM
07:40:00 AM
07:16:00 PM
08:00:00 PM
08:46:00 PM
10:21:00 PM
10:41:00 PM
Good NH3 data. Ended because of HMS HV trip. Also, change target cell.
11:39:00 PM
09:23:00 AM
10:25:00 AM
0
good NH3 run
10:37:00 AM
NH3=>Carbon switching run
10:47:00 AM
11:24:00 AM
Carbon with nose empty
01:54:00 PM
Empty + He , encoder = 0.175 Ax = -.12 Ay=-0.6 Bx = -0.65 By=-0.59
02:04:00 PM
Empty + He , encoder = 0.101 Ax = -.03 Ay=-0.7 Bx = -0.60 By=-0.70
02:21:00 PM
02:29:00 PM
Empty + He , encoder = 0.101 Ax = -.10 Ay=-0.6 Bx = -0.65 By=-0.59 Try empty again but approach from "bottom"
02:33:00 PM
02:50:00 PM
Empty +no he , encoder = 0.158 Ax = -.35 Ay=-0.8 Bx = -0.54 By=-0.56 Try empty again but approach from "bottom"
03:07:00 PM
03:56:00 PM
Carbon Target with He
04:19:00 PM
05:12:00 PM
using the target NH3 bottom. HMS is changing to the positive polarity
06:02:00 PM
using the target NH3 bottom. HMS is changing to the positive polarity Still trying to ramp up the HMS dipole current.
06:05:00 PM
HMS is changing to the positive polarity Still trying to ramp up the HMS dipole current.
06:53:00 PM
07:19:00 PM
08:08:00 PM
HMS is changing to the positive polarity HMS ramping up is complete. But, rate is about 0.7.
09:00:00 PM
taking coicidence data. HMS rate is 0.7 Hz
09:01:00 PM
09:52:00 PM
09:53:00 PM
10:42:00 PM
10:44:00 PM
11:33:00 PM
11:35:00 PM
12:24:00 AM
12:26:00 AM
12:50:00 AM
02:28:00 AM
03:23:00 AM
04:21:00 AM
05:17:00 AM
06:13:00 AM
06:16:00 AM
07:13:00 AM
07:14:00 AM
08:06:00 AM
08:55:00 AM
Polarization mayb e bad (even zero) for about last 30K to 50K events of the run
10:03:00 AM
Polarization was low (50% at the begining, but rising quickly to average about 77& for the run
10:04:00 AM
10:55:00 AM
10:56:00 AM
Cosmic flag turned on to get HMS singles with 3/4 scint.
11:46:00 AM
12:35:00 PM
01:05:00 PM
01:16:00 AM
01:29:00 AM
02:12:00 AM
02:33:00 AM
03:37:00 AM
03:38:00 AM
04:40:00 AM
04:41:00 AM
05:42:00 AM
05:43:00 AM
Target pol. dropped to zero for shot time near event 2.2M
08:46:00 AM
Target pol. dropped to zero for a few thousand triggers near 1.2M. Also, dropped to zero about 1 minute before end of the run.
11:01:00 AM
12:02:00 PM
12:03:00 PM
12:52:00 PM
Lost target pol. just before end of run
12:58:00 PM
01:24:00 PM
Q3 tripped off about 2/3 way through run. Trget pol went to zero just before end of run
01:33:00 PM
02:30:00 PM
02:47:00 PM
04:00:00 PM
05:00:00 PM
NH3 bottom. Polarization=-68% HMS momentum=4.17 GeV, Angle=22.
05:06:00 PM
06:10:00 PM
06:09:00 PM
NH3 bottom neg. pol. HMS momentum=4.17 GeV, Angle=22.
10:37:00 PM
11:32:00 PM
NH3 Bottom, HMS momentum=4.17 GeV/c, HMS angle=22 deg
12:37:00 AM
12:43:00 AM
01:47:00 AM
01:48:00 AM
02:53:00 AM
03:56:00 AM
03:57:00 AM
04:38:00 AM
04:39:00 AM
05:15:00 AM
05:38:00 AM
06:46:00 AM
06:47:00 AM
07:50:00 AM
07:51:00 AM
08:54:00 AM
08:56:00 AM
09:58:00 AM
Lost polarization at end of run.
11:13:00 AM
12:20:00 PM
01:27:00 PM
02:36:00 PM
03:03:00 PM
Polarization is apparently zero at end of run - we think readback is bogus!
03:14:00 PM
03:40:00 PM
Lost polarization at end.
05:20:00 PM
05:22:00 PM
End run to reboot target IOC.
06:32:00 PM
Beam off for target anneal.
11:17:00 PM
11:19:00 PM
11:24:00 PM
11:46:00 PM
12:13:00 AM
12:36:00 AM
12:41:00 AM
01:05:00 AM
01:07:00 AM
03:47:00 AM
05:37:00 AM
07:24:00 AM
08:22:00 AM
08:23:00 AM
08:41:00 AM
08:47:00 AM
09:25:00 AM
10:19:00 AM
11:11:00 AM
12:15:00 PM
First 180K with 50nA beam, then 95nA
12:16:00 PM
01:11:00 PM
02:07:00 PM
02:08:00 PM
03:19:00 PM
03:20:00 PM
11:29:00 PM
11:40:00 PM
Short run to check raster
12:06:00 AM
End run because of BigCal voltage trip.
12:18:00 AM
01:08:00 AM
01:57:00 AM
Good NH3 run.
01:58:00 AM
02:58:00 AM
04:27:00 AM
07:06:00 AM
07:05:00 AM
07:54:00 AM
07:55:00 AM
08:45:00 AM
09:27:00 AM
Good NH3 run; current 105 to 110; deadtime: 12% to 15%.
09:49:00 AM
10:34:00 AM
Good NH3 run at 110 nA.
11:17:00 AM
polarizing the bottom NH3 target; current: 110nA to 80nA; deadtime: 22% to 15%; BigCal Rate: 11k to 7.3k
02:09:00 PM
02:46:00 PM
03:54:00 PM
05:01:00 PM
05:35:00 PM
05:36:00 PM
06:36:00 PM
06:37:00 PM
07:28:00 PM
07:29:00 PM
08:23:00 PM
09:16:00 PM
12:30:00 PM
Run while polarizing target
12:27:00 PM
01:26:00 PM
01:31:00 PM
01:55:00 PM
03:27:00 PM
04:27:00 PM
04:29:00 PM
05:23:00 PM
06:21:00 PM
06:22:00 PM
08:07:00 PM
09:05:00 PM
09:41:00 PM
HMS DC1 & 2 all HV channels off.
09:45:00 PM
12:22:00 AM
01:17:00 AM
The beam current varied during this run from 30nA to 95 nA due to Mahbub's beam current ramp test for the tracker.
04:32:00 AM
05:24:00 AM
05:28:00 AM
High voltage trip in hctsv12:2006 at the end of the run.
06:21:00 AM
04:47:00 PM
JR: Corrected entries for Nevents, Deadtime, SR
04:51:00 PM
05:13:00 PM
Rater -On Size -2.05 HalF Plate -1 :
05:14:00 PM
06:16:00 PM
06:20:00 PM
07:20:00 PM
HMS collimator is pion collimator; there's no large HMS DC HV trip
08:19:00 PM
freshly polarized top target
09:37:00 PM
09:42:00 PM
09:43:00 PM
09:22:00 PM
11:38:00 PM
11:44:00 PM
first entry did not work, don't have rate and pol end data
11:48:00 PM
12:51:00 AM
12:53:00 AM
02:04:00 AM
02:07:00 AM
03:04:00 AM
03:59:00 AM
Beam current increased to 100 nA about halfway through the run.
04:04:00 AM
04:11:00 AM
04:29:00 AM
Run during the helium boil off. Initial BigCal rate is 9.2k. Ended run when nose emptied: bigcal rate 6.9k.
04:31:00 AM
05:01:00 AM
06:28:00 AM
06:35:00 AM
Beam current increased to 95 at the end of the run.
06:36:00 AM
Loss of polarization at the end of the run.
Lost beam polarization at the end of the run.
08:17:00 AM
NH3 Bottom, 95 nA
09:24:00 AM
10:26:00 AM
11:18:00 AM
11:25:00 AM
11:58:00 AM
C+He, 150 nA
03:34:00 PM
03:41:00 PM
NH3 Top (Positive), 60 nA
03:42:00 PM
NH3 Top (Positive), 95 nA
08:53:00 PM
NH3 Top (Positive), ~95 nA Tried to end run when polarization suddenly dropped to zero (needed He fill), actually ran while it came back up
10:28:00 PM
10:29:00 PM
11:28:00 PM
10:30:00 PM
11:53:00 PM
ended run to start an anneal
12:21:00 AM
12:23:00 AM
12:29:00 AM
03:21:00 AM
Actually, I don't know what the slow raster size is. We went through this long program about it and I think we found that it was closer to 1.4 or 1.5 cm than 1.9 cm. But we got some other strange results that will get
03:26:00 AM
Slow raster diameter was changed between events 1.435M and 1.5M events. It was increased by 10%. So if our measurements earlier today suggested we had a raster diameter of 1.4 cm, we should now have a diameter of 1.54
06:14:00 AM
07:18:00 AM
07:19:00 AM
08:13:00 AM
08:18:00 AM
09:22:00 AM
Check raster; seems to be ~ 2 cm; most of the run Ibeam=0
05:10:00 PM
06:01:00 PM
Top negative polarization after anneal. Wien angle 13 degrees
Top negative polarization after anneal. Wien angle 13 degrees Adjusted tracker HV for Y1 3 to see if helped Moved the beam -0.5 mm on 00A and 00B after event ~ 900K Current 90 nA after event 2500K
06:55:00 PM
07:56:00 PM
Top negative polarization after anneal.
07:57:00 PM
09:02:00 PM
Top negative polarization after anneal. Pumps tripped. Stopped beam to reduce refrigerator pressure to restart pumps
10:36:00 PM
11:27:00 PM
01:51:00 AM
02:48:00 AM
Bot neg
02:49:00 AM
03:54:00 AM
05:03:00 AM
05:40:00 AM
05:45:00 AM
06:07:00 AM
carbon at 130nA
08:07:00 AM
fresh annealed target
09:18:00 AM
10:05:00 AM
stooped to reboot RF generator; ROC14 not responding -> end run failed
10:14:00 AM
01:40:00 PM
02:28:00 PM
stopped because pumps at the target tripped
03:18:00 PM
03:28:00 PM
stopped because beam off for some time
03:29:00 PM
stopped because of beam off
04:46:00 PM
05:34:00 PM
bot nh3 +64%
05:59:00 PM
bot nh3 +63%
08:40:00 PM
Rater -Off Size -0 HalF Plate -1 :
08:41:00 PM
09:39:00 PM
top nh3
11:37:00 PM
12:38:00 AM
12:39:00 AM
01:37:00 AM
nh3 top
01:49:00 AM
02:42:00 AM
top nh3 During this run, MCC changed beam position.
02:43:00 AM
02:56:00 AM
02:57:00 AM
top nh3 Changing beam position
03:29:00 AM
top nh3 After check new beam position, we are coming back to run plan position
03:45:00 AM
nh3 top changing beam position
04:44:00 AM
top nh3 Around event 1587k(63.1% polarization), beam current increased from 90nA to 100nA
01:25:00 PM
02:31:00 PM
02:38:00 PM
1st entry did not make it; some info not available right now
03:00:00 PM
03:52:00 PM
05:03:00 PM
90 nA, Bottom (Negative), start polarization -61.2%
05:05:00 PM
05:52:00 PM
90 nA, Bottom (Negative), start polarization -60.5%
07:05:00 PM
07:53:00 PM
100 nA, Bottom (Negative), start polarization -60.6
08:06:00 PM
105 nA, Bottom (Negative), start polarization -57.8
95 nA, Top NH3 (Negative), -65.7
10:24:00 PM
95 nA, Top NH3 (Negative), -61.7
10:58:00 PM
95 nA, Top NH3 (Negative), -74.4
12:54:00 AM
90 nA, Top NH3 (Negative), -67.8
01:53:00 AM
03:43:00 AM
90 nA, Top NH3 (Negative), -62.7 (increased to 105 nA during this run
03:44:00 AM
90 nA, Top NH3 (Negative), beam current 105 nA
05:18:00 AM
90 nA, Top NH3 (Negative), beam current 105 nA -57.8
01:49:00 PM
01:56:00 PM
magnet quench
test of beam quench
10:50:00 PM
10:59:00 PM
quench test
11:14:00 PM
11:18:00 PM
11:22:00 PM
test of beam quench: no quench
11:43:00 PM
test of beam quench: no quench - target encoder 0.1
11:45:00 PM
11:49:00 PM
test of beam quench: no quench - target encoder 0.25
First data run.
01:36:00 AM
02:54:00 AM
Good data run.
02:55:00 AM
05:34:00 AM
06:48:00 AM
06:49:00 AM
Junk ! Beam OFF due to RF trip in Linac.
Bottom (Positive). Ended run, beam OFF since 09:15.
06:45:00 PM
07:46:00 PM
07:47:00 PM
08:32:00 PM
08:36:00 PM
09:38:00 PM
10:14:00 PM
10:17:00 PM
11:15:00 PM
12:19:00 AM
05:58:00 AM
Ended run, lost communication with target computer
02:35:00 PM
03:13:00 PM
Beam position not good
06:28:00 PM
06:29:00 PM
07:58:00 PM
09:30:00 PM
We were scrapin something. Beam positions were changed.
01:35:00 PM
PROD data
02:45:00 PM
03:59:00 PM
12:44:00 AM
01:00:00 AM
01:01:00 AM
03:07:00 AM
04:16:00 AM
06:57:00 AM
06:58:00 AM
Run ended early due to some problems with beam delivery.
09:10:00 AM
Short Run Beam positions are off
08:25:00 AM
Short Run Beam positions are more or less fixed towards the end of the run
12:40:00 PM
Short Run Beam is off for 15 min
03:38:00 PM
Raster died on us. We are hitting something.
04:26:00 PM
Raster Power Supply fixed. Beam current increased to 90 nA during the run. after event ~360K
05:42:00 PM
Run ended because of beam trip. MCC lost one of there sub-magnets.
Beam position may not be right. MCC was moving the beam around.
Run ended because HMS drift chambers tripped.
12:20:00 AM
01:20:00 AM
Some BPM X stability issues for short period of time (see log entry 178178) Stopped run because of sudden drop in polarization
02:44:00 AM
04:02:00 AM
stooped because lost polarization
04:43:00 AM
05:48:00 AM
07:43:00 PM
parallel
Encoder position 0.244 BPM positions: BPM 00A x=0.5, y=-1.0 (+-0.2 mm) 00B x=0.0 y=0.6 mm
08:22:00 PM
08:48:00 PM
Production run. Stopped the run, because MCC had to tune one of cavities manually
09:29:00 PM
The polarization decreased to 59%. Target has a pump problem
11:36:00 PM
12:46:00 AM
good run
12:47:00 AM
01:50:00 AM
good run, several beam trips
02:51:00 AM
05:44:00 AM
06:22:00 AM
good run, stop run to jog target
test run to check target position
06:34:00 AM
slightly different target position
1/2 wave plate IN. Ended to check HMS DC gas flow.
12:17:00 PM
12:44:00 PM
Change HMS setting during run
02:16:00 PM
Not stable beam.
02:40:00 PM
06:26:00 PM
07:34:00 PM
07:36:00 PM
09:06:00 PM
09:08:00 PM
The polarization is being built up?
01:14:00 AM
03:02:00 AM
03:33:00 AM
03:40:00 AM
Empty with helium
04:28:00 AM
Carbon target, trigger back to normal
07:47:00 AM
08:31:00 AM
goo run. End run because beam OFF.
Good run. Ended because beam OFF.
11:39:00 AM
Good run.
11:43:00 AM
01:18:00 PM
01:19:00 PM
01:51:00 PM
Good run. Beam current 105 nA started from event number 560 k.
03:41:58 PM
04:40:10 PM
04:41:58 PM
06:49:30 PM
had little low negative polarization during the run.
Rater -On Size -2.0 HalF Plate -1 : had little low negative polarization during the run. about -57.0% reduced the beam upto 85 nA for 4-5 minutes during the run and it increased back to 100 nA. The run was ended little earlier because both HMS DRIFT CHA
07:46:34 PM
08:38:55 PM
polarization started to drop suddenly. So the run stopped at the middle.
run started without the beam for about 10 minutes. it is very BIG JUNK.
09:00:40 PM
09:10:07 PM
stopped the run in the middle in order to change the half plate.
09:12:15 PM
09:44:49 PM
09:45:54 PM
10:15:43 PM
01:00:25 AM
01:19:46 AM
01:25:03 AM
02:22:47 AM
02:24:00 AM
First run after long no-beam
11:10:00 AM
Cosmic run There is a hot spot in bigcal. See hclog entry #178766.
06:44:00 PM
Cosmic run
06:46:00 PM
08:03:00 PM
08:09:00 PM
Empty had no cross hair and no He.
08:13:00 PM
10:20:00 PM
hole beam at A x= 0.7 B x = -.2, A y =-.5 B = .6
11:02:00 PM
hole beam at A x= 0.5 B x = -0.5
11:04:00 PM
hole beam at A x= 0.2 B x = -1.2 Good beam position
12:45:00 AM
NH3 bottom HMS field regulation still not completed
01:52:00 AM
NH3 bottom
Rater -Off Size -0 HalF Plate -1 : NH3 top Around 1460k events, we decreased current to 90nA
NH3 top We had no beam from 40 min before end of the run
NH3 top
NH3 top. Polarization dropped quickly and end of run.
09:28:00 AM
10:16:00 AM
NH3 top. Run stopped early because beam down
01:04:00 PM
02:06:00 PM
NH3 top. Gas Alarm Trip
03:48:00 PM
NH3 top. Argonne bottle switched at start of run. Curreint increased to 105nA at event ~2700000.
Rater -Off Size -2.0 HalF Plate -0 : HMS momentum and angle were changing during the run. The beam was unstable -- y position changed with a regular cycle. MCC can't explain it yet.
11:11:00 PM
12:22:12 AM
Rater -Off Size -2.0 HalF Plate -0 :
12:34:00 AM
Looking at 10 mm hole
01:27:53 AM
01:38:34 AM
02:32:25 AM
03:33:51 AM
06:27:00 AM
07:18:01 AM
Ended run. Beam OFF.
10:12:00 AM
End run. We lost polarization.
10:42:00 AM
01:46:00 PM
03:33:00 PM
04:03:00 PM
Rater -On Size -2 HalF Plate -0 : C+He run, NEvents is wrong
04:04:00 PM
04:36:00 PM
Rater -On Size -2 HalF Plate -1 : C+He run with HMS cosmics trigger(3/4)
NH3 bottom Lost polarization at the end
05:40:00 PM
05:46:00 PM
05:48:00 PM
NH3 bottom Half plate is in.
11:21:00 PM
02:55:26 AM
03:51:00 AM
04:16:18 AM
07:00:15 AM
08:34:00 AM
NH3 Bottom
08:35:00 AM
10:06:00 AM
11:29:00 AM
01:01:00 PM
Top NH3, Negative.
Top NH3, Negative. Ended run because beam OFF.
03:32:00 PM
Top NH3, Negative. Ended because beam OFF.
03:35:00 PM
05:26:00 PM
Top NH3, Negative. stopped the run because the polarization suddenly went to zero. the nose level looks zero.
06:06:00 PM
took 1/2 hour run
06:35:00 PM
took 1/2 hour run.
computer got stucked and the run details input was not worked and had to reboot the computer. SO, THESE NUMERICAL VALUES ARE AS I REMIND AND NOT EXACTLY CORRECT.
THIS IS A big JUNK
Maybe junk, ROCs not reporting.
02:03:00 AM
02:59:00 AM
03:58:00 AM
04:59:00 AM
05:22:00 AM
05:23:00 AM
06:23:00 AM
06:24:00 AM
07:01:00 AM