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  • From: John Haggerty <haggerty AT bnl.gov>
  • To: "sphenix-hcal-l AT lists.bnl.gov" <sphenix-hcal-l AT lists.bnl.gov>, "sphenix-emcal-l AT lists.bnl.gov" <sphenix-emcal-l AT lists.bnl.gov>
  • Subject: [Sphenix-hcal-l] Some changes to running conditions...
  • Date: Sat, 23 Apr 2016 14:15:21 -0500

It's not terrible for us, but Michael Backfish discovered an issue with the shielding in the MTEST line when operated in low energy pion mode above 30 GeV. I think you may be able to see the elog entry:

https://www-bd.fnal.gov/Elog/?logNames=External+Beamlines&categoryNames=Meson+Test

which says that they will restrict the energy to -30 to +30 GeV. He says they may be able to ease this restriction with further review by next week, but as of yesterday afternoon, we're only going up to 30 GeV in low energy pion mode. At the moment, we're restricted to 0 GeV by an accelerator problem described here:

https://www-bd.fnal.gov/Elog/?logNames=Operations

--
John Haggerty
email: haggerty AT bnl.gov
cell: 631 741 3358



  • [Sphenix-hcal-l] Some changes to running conditions..., John Haggerty, 04/23/2016

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