[clas12_rgk] no RC meeting today: status update

[Annalisa D'Angelo]

Dear All,

we are still in production mode at 35 nA. Beam has been down most of the 
owl shift, due to shunt module MXU6S03 and MXV4R04 replacement. The beam 
has not been reproducible afterwards (see 
https://logbooks.jlab.org/entry/3633996). At 5 am the crew chef 
requested the injection of tuned beam. Tagger has been energized and all 
detectors have been turned off. Beam was back by 7 am and it took 
another hour to restore beam quality. Data taking has proceeded 
regularly afterwards, except for another 1 hr beam down for some 
problems with MXF4R01 mismatched 
<https://logbooks.jlab.org/entry/3634065> resulted in trim card MQA4A10 
<https://logbooks.jlab.org/entry/3634057> being replaced.
We have collected slightly less than 1 billions events in the last day 
for a total of 2.5 billions RGK production events.

The plan is to continue until Monday morning when beam will be 
terminated for beam studies.

All the best,
     Annalisa (RC)


-- 
================================================
Prof. Annalisa D'Angelo
Dip. Fisica, Universita' di Roma "Tor Vergata"
INFN Sezione di Roma Tor Vergata, Rome Italy
email:annalisa.dangelo at roma2.infn.it
Jefferson Laboratory, Newport News, VA USA
Email: annalisa at jlab.org
Tel: + 39 06 72594562

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