Re: [BLAST_SHIFTS] C shift 05/24/03

From: vitaliy ziskin (vziskin@mit.edu)
Date: Sun May 25 2003 - 10:58:15 EDT


If the ligit went down so drasticaly then there could be a problem with
the nozzle freezing up or otherwize clogging. Did the ligit stay down?
What is it now? What is the line pressure (C1bridge on the pol. gas
feed system)?

                                                                       
 Cheers, Vitaliy

Benjamin Clasie wrote:

>The HV GUI worked very well all evening, and we took polarized hydrogen
>data. The run numbers were 525 to 527 and 531 to 533. The wire chambers
>tripped at the following times:
>19:56, 21:16, 22:25, 23:19
>and was fixed by pressing either the oper or stdby button on the HV GUI
>(stdby for during beam injection).
>
>We looked at the asymmetry from runs 525-527, and it looked much like the
>previous runs. Ligit decreased from ( 1.3 to 0.9 ) x10^-7Torr during the
>shift, and the NBQM's decreased from 70,50,100,150 to 60,40,90,130.
>
>T.L. and B.C.
>
>



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