The shift was mostly a beam-tuning shift without data taking.
CCR was still tuning the beam when taking over.
beam tuned with BQM optimization.
>From time to time the BQM's had to be reset.
At 3.30am a problem with one clystron was reported.
CCR calls at 7am. The following (poor) tune was achieved:
Injection of 70mA, 10 min lifetime. The BQM rates are a factor of 10
higher than last week (T=800,B=300,L=650,R=420) with slits at
(L=-4,R=8,T=1,B=-6). We decided to take some data for at least 30 minutes.
ETSpy repeatedly reports warnings:
Warning there was no DATA in the et for this 10 sec cycle
nread 0 nphys 0 nscaler 0 nepics 0
this is still the case after end/start run and restart of caserver.
Warnings of Tspy remain, although caserver is running.
Have runs #443 (25k events), #445 (50k events), #447 (40k events) with
empty target, 50Hz@30mA, trigger=elastic_een.
Regards,
Michael
--+-------------------------------------+--------------------------+ | Office: | Home: | |-------------------------------------|--------------------------| | Dr. Michael Kohl | Michael Kohl | | Laboratory for Nuclear Science | 5 Ibbetson Street | | MIT-Bates Linear Accelerator Center | Somerville, MA 02143 | | Middleton, MA 01949 | U.S.A. | | U.S.A. | | | - - - - - - - - - - - - | - - - - - - - - -| | Email: kohlm@mit.edu | K.Michael.Kohl@gmx.de | | Work: +1-617-253-9207 | Home: +1-617-629-3147 | | Fax: +1-617-253-9599 | Mobile: +1-978-580-4190 | | http://blast.lns.mit.edu | | +-------------------------------------+--------------------------+
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