[Hps] good beam for HPS run last night
Stepan Stepanyan
stepanya at jlab.org
Thu Apr 23 09:07:59 EDT 2015
Dear all,
As of 1 am today we had a wonderful beam on HPS target. Many thanks to MCC
crew for delivering and maintaining a good beam quality throughout the
night.
Of course all kudos to Arne Freyberger for tuning beam for HPS. The
quality and
the profile of the 1.056 GeV beam fully met the requirements. Shortly
after getting
the nice beam we were able to establish the production running
conditions and
started the HPS detector commissioning.
Hall-B will be in restricted access during the day for 12 GeV work. We
will close
again at/around 4pm. For system experts, please make sure your system is
ready
prior the closing of the hall. Last night we lost 2 hours due to open
vacuum valves.
We do not have much time and losses like that are unacceptable.
Regards, Stepan
PDL
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