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    User name pking

    Log entry time 00:19:47 on November 16, 2009

    Entry number 300203

    keyword=Swing shift summary

    SL : Paul King
    TO: Abdurahim Rakhman
    3rd: Sarah Phillips

    Summary

    Production runs with IHWP OUT (SLUG 3):
    	Parity	I_beam	kilo-pairs	LHRS	RHRS
    	------	------	----------	-----	-----
    	13978	70 uA	  7.4		25506	 down
    	13979	70 uA	 18.0		25509	5057
    	13981	70 uA	 31.2		25514	5062
    	13982	75 uA	 38.4		25515	5063
    	13983	70 uA	 42.4		25516	5064
    	13984	70 uA	 40.7		25517	5065
    	13985	70 uA	 45.7		25518	5066
    
    Total kilo-pairs in SLUG 3 (from whiteboard): 1041.8

    Details

    Shift starts with some confusion... HV for RHRS preshower is down.

    Runs 13978 (parity), 25506 (LHRS) are in progress.

    16:07---Ramesh asks for an escorted access to replace the RHRS preshower HV card. But, then the HV card starts responding. Cancel the access request.

    16:18---Request 5 uA to do a quick steering and spot check. 16:22---Request 75 uA.

    16:27---Start runs 13979, 25509, 5057.

    16:52---RHRS preshower HV card dies again, this time more persistently. Request an escorted access to replace the RHRS preshower HV card.

    17:00---Ramesh & the ARM are entering the hall.

    17:00---Start BEAM OFF runs 13980, 25510, 5058.

    17:41---Out of the hall. Request beam permit again.

    17:53---Moving to the empty target.

    17:58---Empty target is in position. Request 2 uA.

    18:01---Move to BeO target. Request 5 uA, raster off.

    18:08---Request 10 uA, 4x4 raster. Take spot++ runs, 25511 & 5059. Looks like the raster had been set to 6x6 temporarily.

    Take another set of spot++ runs, 25512 & 5060.

    18:19---Move to LD2

    18:28---LD2 is in. Request 2 uA, 6x6 raster. Take spot++ runs, 25513 & 5061.

    18:34---Request 70 uA.

    18:36---Start runs 13981, 25514, 5062.

    19:00---Request 75 uA.

    19:33---Start runs 13982, 25515, 5063.

    20:23---Back to 70 uA due to trippiness.

    20:30---Start runs 13983, 25516, 5064.

    21:27---Start runs 13984, 25517, 5065.

    22:24---Start runs 13985, 25518, 5066.

    23:20---Ended run 13985.

    Requested IHWP to be inserted.

    Ran flipper, to get SLUG 4.

    [apar@adaql1 ~]$ flipper
    

    ****************************************

    Only run this program when the IHWP change has already been made. If not, please Ctrl-C out now!

    Current slugnumber = 3 Increment slugnumber? (Y/N) y New slugnumber = 4

    Current IHWP = IN Desired Settings for IHWP = IN Hall-A IA = 4.79 Hall-C IA = 4.87 PC Pos = 8.187 PC Neg = 6.513 RHWP = 1200 Current settings (to be changed) Hall-A IA = 4.79 Hall-C IA = 4.3 PC Pos = 7.698 PC Neg = 7.002 RHWP = 1200 Writing the current seetings to file /adaqfs/halla/apar/feedback/IHWP.OUT for the next flip back. Performing Flip to IHWP = IN settings Halfwave plate IN, Slug 4 Making halog entry. Writing Pockels cell epics variables.

    Done... Please verify the new setpoints in the HAPPEX Feedback Monitor.

    Giving feedback new values.

    21:25---Start runs 13986, 25519, 5067. Start Compton run 21003.

    23:56---Lost connection to iocha14. Reboot iocha14 according to Troubleshooting guide. "P0 Set" was zero. Reenter 3.66. Re-enable the NMR search for the dipole. The settings were about an amp off by the time we got relocked; this set of runs may have questionable data.

    Shift ends with runs 13986, 25519, 5067, and Compton run 21003 in progress.