Difference between revisions of "PREX/CREX Aug 3 2017 11:00am EDT"

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== Agenda ==
 
== Agenda ==
 +
# Ciprian: septum pipe [https://prex.jlab.org/wiki/images/4/4b/170803_SeptumBeamPipe_CGal.pdf slides]
 +
#* CG: Jay made an implementation that shows almost complete reduction of the fringe field at the center of the Septum for CREX.
 
# Ciprian: dump configuration, radiation calculation [https://prex.jlab.org/wiki/images/4/45/170802_PREX_Dump_CGal.pdf slides]
 
# Ciprian: dump configuration, radiation calculation [https://prex.jlab.org/wiki/images/4/45/170802_PREX_Dump_CGal.pdf slides]
#* comments
+
#* GU: to verify that the thickness of the PREX1 apperture plate/diffuser is to blame for the increased radiation damage we should run with a thinner apperture (like the PREX2 donut) and see what we get.
# Ciprian: septum pipe [https://prex.jlab.org/wiki/images/4/4b/170803_SeptumBeamPipe_CGal.pdf slides]
+
#* SR: it looks like a larger apperture and shielding would be the ideal configuration. We should include the new fringe field from Jay to see how it changes things (it should improve things significantly).
#* comments
+
#* PS: Do we know where PREX1 damage came from (target, collimator, dump, beampipe)? CG: don't have numbers on hand now, will look it up.  
 +
#* PS: could you provide NEIL vs energy distributions for e/gamma and neutrons? CG: will update slides and send them over later today.
  
 
== Attendance ==
 
== Attendance ==

Revision as of 15:23, 3 August 2017

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Logistic information

 BlueJeans calling instructions:
 Toll-Free Number (U.S.&  Canada):  888-240-2560
 International toll number:         408-740-7256
 PARTICIPANT CODE:                  913380354#
 Room IRL:                            CEBAF F227


Agenda

  1. Ciprian: septum pipe slides
    • CG: Jay made an implementation that shows almost complete reduction of the fringe field at the center of the Septum for CREX.
  2. Ciprian: dump configuration, radiation calculation slides
    • GU: to verify that the thickness of the PREX1 apperture plate/diffuser is to blame for the increased radiation damage we should run with a thinner apperture (like the PREX2 donut) and see what we get.
    • SR: it looks like a larger apperture and shielding would be the ideal configuration. We should include the new fringe field from Jay to see how it changes things (it should improve things significantly).
    • PS: Do we know where PREX1 damage came from (target, collimator, dump, beampipe)? CG: don't have numbers on hand now, will look it up.
    • PS: could you provide NEIL vs energy distributions for e/gamma and neutrons? CG: will update slides and send them over later today.

Attendance

Excused:

Kent P, KK