[Tpe] tpe update
Larry Weinstein
lweinste at odu.edu
Thu Jan 20 16:31:41 EST 2011
Dear Folks,
At the morning meeting the accelerator group warned us that they were
rapidly running out of spares for the BPM lock in amplifiers. Those are
located in the rack next to iocptarg on the space frame (they are beam
left. iocptarg is in the most upstream rack with the accelerator amps
next to it).
We built concrete and lead shielding around those racks and placed a
bunch of TLDs to monitor the radiation levels. See the log book for
more info. Doug should have pictures of the shielding up sometime
tomorrow on his picture page.
This could be a show stopper. If necessary, we will figure out how to
add more shielding later. However, we are limited by the 250 pounds per
square foot that the floor can take.
--
Sincerely,
Larry
-----------------------------------------------------------
Lawrence Weinstein
University Professor
Physics Department
Old Dominion University
Norfolk, VA 23529
757 683 5803
757 683 3038 (fax)
weinstein at odu.edu
http://www.lions.odu.edu/~lweinste/
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