Jefferson Lab Hall C Logbook for January 12 - Beam
Main INDEX
Tuesday
Monday
250989 01/30/12 13:28 benesch Beam: Trent Allison seems to have found noise problem
250916 01/30/12 08:48 dalton Beam: Injector transmission tuning underway
Sunday
250854 01/29/12 23:57 cornejo Beam: BPM 3C12X differences just so crazy now!!!
250837 01/29/12 21:44 cornejo Beam: Beam returning to hall
250834 01/29/12 20:39 dalton Beam: Discussions with PD re energy jitter
250830 01/29/12 20:25 cornejo Beam: Beam has been out since 20:10 due to a cavity issue in accelerator
250817 01/29/12 19:14 cornejo Beam: IHW#1 is now IN, IHW#2 is now out
250812 01/29/12 18:31 benesch Beam: 3C12 RMS much larger today than it has been
250696 01/29/12 02:16 DArko Beam: IHWP#1 from IN to OUT possition
Saturday
250578 01/28/12 09:27 donjones Beam: Ramp rate too low
250524 01/28/12 02:11 DArko Beam: IHWP#1 is IN from now > FlipPCValues output
Friday
250323 01/27/12 00:59 rakithab Beam: RHWP changed from 349 to 369
Thursday
250214 01/26/12 10:53 dalton Beam: Scintillator rates and BPM 12 later
250209 01/26/12 10:26 dalton Beam: Scintillator rates not correlated with BPM 12
250198 01/26/12 09:23 dalton Beam: Compton background scintillator excursions overnight
250158 01/26/12 04:26 DArko Beam: IHWP 1 is OUT and IHVP2 is IN Now
Wednesday
Tuesday
249844 01/24/12 12:31 beam Beam: dump viewer camera fried
Monday
249643 01/23/12 15:14 narayan Beam: Status, tune beam
249636 01/23/12 14:37 narayan Beam: Status: down for another few hours
249632 01/23/12 12:40 rajotte Beam: halo increased after SL gang phase change (but then 2 out of 3 improved)
249628 01/23/12 10:14 narayan Beam: modulation turned off
249617 01/23/12 09:12 narayan Beam: Status: no beam for 5-6 hrs
Sunday
249526 01/22/12 19:59 benesch Beam: more about asymmetry at early BPMs
Saturday
249382 01/21/12 23:26 Adesh Beam: Status: Beam down due to power supply issue
249316 01/21/12 15:07 benesch Beam: more compton scintillator rate elogs
249292 01/21/12 12:06 benesch Beam: excursion in Compton background, source unknown
249289 01/21/12 11:21 benesch Beam: energy rms after modulation stops
Friday
249121 01/20/12 14:25 dalton Beam: Scraping indeed
249113 01/20/12 13:49 benesch Beam: vertical extent of Compton response explained?
Thursday
248953 01/19/12 18:01 benesch Beam: why is the Compton photon rate not symmetric in vertical scan?
248927 01/19/12 15:58 rob Beam: compton scintillator rates
248923 01/19/12 15:34 benesch Beam: link to elog with harp traces
Wednesday
248751 01/18/12 19:50 benesch Beam: beam unresolvably narrow at 3C20
248722 01/18/12 15:38 rob Beam: status
Tuesday
248590 01/17/12 15:00 wdconinc Beam: Followup with EPICS picture
248589 01/17/12 14:59 wdconinc Beam: Power spectrum of high-rate background scintillator excursions on Sunday 1/15
248584 01/17/12 13:47 Suleiman Beam: gain change for new BCM0L02 receiver
248571 01/17/12 09:34 wdconinc Beam: Run plan this morning
Monday
248463 01/16/12 13:45 benesch Beam: beam quality email sent to B team Sunday
248456 01/16/12 11:54 fangguo Beam: Status down for couple hours
248398 01/16/12 02:24 V. Tvaskis Beam: Alarm on Ion Chamber
Sunday
248343 01/15/12 20:01 benesch Beam: charge asymmetry width improved after Ops autosteered injector
248342 01/15/12 19:59 benesch Beam: halo 4 rates ~ 200 Hz/uA. Halo 3 rates ~ 40 Hz/uA
248334 01/15/12 18:41 cornejo Beam: Beam back: returning to production data taking
248322 01/15/12 16:53 cornejo Beam: MCC called, North Lincac safety system tripped, will be down for a while
248270 01/15/12 10:57 Adesh Beam: MCC sending in 8 uA of tune beam
248267 01/15/12 10:42 Adesh Beam: MCC sending tune beam, HVs turned off, e-det retracted
248262 01/15/12 10:15 Adesh Beam: Status: MCC ready to send 180 uA
248260 01/15/12 10:07 Adesh Beam: Status: MCC has taken beam away
248257 01/15/12 09:36 Adesh Beam: Status: MCC is planning to take beam away around 10 am
Saturday
248165 01/14/12 19:09 Dutta Beam: MCC calls to say beam will be off for 2 hrs to tune for 180 uA
248151 01/14/12 18:18 wdconinc Beam: MOMod turned off: double peaking gone!
Friday
247850 01/13/12 22:15 narayan Beam: setup COMPTLETE for high beam
247826 01/13/12 18:56 narayan Beam: Status: ~ 1 hr more for setting high beam
247816 01/13/12 17:07 narayan Beam: MCC expects to be done in 30 min
247783 01/13/12 09:07 poelker Beam: spot move hadn't happened, but raterh injector phase adjustments
Thursday
Wednesday
Tuesday
247176 01/10/12 19:32 Spayde Beam: MCC is Going to Send Tune Beam
Monday
247086 01/09/12 20:04 Spayde Beam: Changed Gain Settings on BCM 1 & 2
247085 01/09/12 19:35 Spayde Beam: Requested 50 uA CW
247084 01/09/12 19:31 Spayde Beam: Going to 3 uA CW with 4x4 Raster
Sunday
246957 01/08/12 20:36 Spayde Beam: Beam Going Away For Awhile
246945 01/08/12 19:08 benesch Beam: can't analyze IHA3C20 data tonight
246938 01/08/12 16:13 Spayde Beam: MCC Sending Tune Beam
246929 01/08/12 13:30 benesch Beam: another option or two without Qtor
Saturday
246777 01/07/12 20:47 Spayde Beam: 3uA in Hall
246768 01/07/12 17:22 benesch Beam: beam energy measurement 12/20
Friday
246545 01/06/12 20:23 Spayde Beam: New Slit and Attenuator Settings
246540 01/06/12 19:27 Spayde Beam: Results of 3C20 Harp Scans
246538 01/06/12 19:21 Spayde Beam: Attenuator Settings for Low Current Running
246422 01/06/12 10:21 saw Beam: Dummy Insertable Half Wave Plate
Thursday
246187 01/05/12 01:06 Arthur Beam: Status update
Wednesday
246045 01/04/12 07:46 Suleiman Beam: Injector BCM0L02 has a new Receiver
246041 01/04/12 07:06 Arthur Beam: Status update
246007 01/04/12 04:16 Arthur Beam: Status update
246003 01/04/12 03:35 Arthur Beam: Status update
Tuesday
245959 01/03/12 15:52 rob Beam: machine status
Monday
Sunday