Synchrotron radiation - occupancy

["Lorraine Marceau-Day" <day@LSU.EDU>]

Dear radsafers



My accelerator physics group has requested access to the synchrotron ring

during operation to align their diagnostic beamline.  This beamline is

completely contained within the front end (i.e. is behind the shield wall)

and represents a recent configuration change.  They need to align mirrors,

for which they have only manual controls while beam is circulating.  There

is an autocorrect function running to maintain beam position based on beam

position monitoring feedback.  The experiment would be conducted at low

current (3 ma) and 1.35 GeV. At this current, beamlife is extremely long

with few losses. Have any of you ever dealt with such a request?  Of

course, we are completing calculations for a beam dump in the area but

wanted you to share any similar experiences.  You may respond directly to

me.



Many thanks,



Lorraine Day, PhD

CAMD Safety

day@lsu.edu



************************************************************************

You are currently subscribed to the Radsafe mailing list. To unsubscribe,

send an e-mail to Majordomo@list.vanderbilt.edu  Put the text "unsubscribe

radsafe" (no quote marks) in the body of the e-mail, with no subject line.

You can view the Radsafe archives at http://www.vanderbilt.edu/radsafe/