Difference between revisions of "Meeting 28 August 2020"

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(Created page with "DISCUSSION TOPICS: * Simulations Update * Shielding and magnet model * Hall A/C model and design/implementation * Hall D design and radiation simulations * Other")
 
 
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* Shielding and magnet model  
 
* Shielding and magnet model  
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::* [https://wiki.jlab.org/cuawiki/images/7/71/CPS_Initial_Design_Model_8_28_20.pptx CPS Design Model Update]
  
 
* Hall A/C model and design/implementation
 
* Hall A/C model and design/implementation
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* Other
 
* Other
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PARTICIPANTS: A. Comer, A. Asaturyan, R. Ent, H. Mkrtchyan, I. Strakovsky, V. Tadevosyan, T. Horn, J. Crafts, S. Dobbs, B. Wojsekhowski, David H., T. Keppel
 +
 +
 +
'''SUMMARY NOTES'''
 +
 +
'''SIMULATIONS'''
 +
 +
* Work ongoing
 +
 +
 +
'''SHIELDING AND MAGNET MODEL''' (Josh)
 +
 +
* Shielding stacked up to top of magnet - plate added on top to make things level
 +
 +
* Openings in front and back of shielding implemented
 +
 +
* Flared downstream end - still need feedback from radiation simulation to finalize
 +
 +
* Inlet of LCW cooling water is on upstream end - in same place as beam pipe
 +
::* advantageous from radiation point of view: high energy particles go forward (few GeV based on e beam), energy of particles going backward is soft
 +
 +
* Next steps:
 +
::* Build rest of shield taking into account any feedback on points below
 +
::* Need for taping on front end
 +
::* Size of beam pipe and material needed - then can build around and make support structure
 +
 +
::* Structural support of tungsten powder - need more information on tungsten blocks
 +
::* Thermal calculation for extension of core in longitudinal direction - work ongoing
 +
 +
 +
'''ENGINEERING/DESIGN''' (Amy)
 +
 +
* Work ongoing, e.g. thermal calculations
 +
 +
* Action item: dimensions of beam pipe, etc.
 +
 +
 +
'''HALL D DESIGN/ENGINEERING''' (Sean)
 +
 +
* Work ongoing on front end
 +
 +
 +
'''PAC48 RECAP'''
 +
 +
* All comments based on close out session - report should be available soon
 +
 +
* Hall D/KLong:
 +
::* science case well received, some concern about higher level management coordination
 +
 +
* Hall A/C TCS
 +
::* Science well received
 +
::* Main comment: need for more information on experimental setup - see if experiment is possible
 +
::* one issue: GEM as part of trigger - high risk since never done before
 +
::* one possible option: find out if GEM in SRO works as done for TDIS
 +
::* '''Action item''': Vardan present current assumptions on trigger
 +
 +
NPS+CPS installation - COMPLEMENTARITY
 +
 +
* So far no objections based on physics
 +
 +
 +
'''NEW CPS PHYSICS EXPERIMENT IDEAS''' (Bogdan)
 +
 +
* Two photon exchange experiment - with photon beam from CPS better intensity, use secondary target downstream plus some detectors - need to work out details
 +
 +
 +
'''NEXT MEETING : FRIDAY 11 SEPTEMBER AT 11AM ET'''

Latest revision as of 15:54, 28 August 2020

DISCUSSION TOPICS:

  • Simulations Update
  • Shielding and magnet model
  • Hall A/C model and design/implementation
  • Hall D design and radiation simulations
  • Other


PARTICIPANTS: A. Comer, A. Asaturyan, R. Ent, H. Mkrtchyan, I. Strakovsky, V. Tadevosyan, T. Horn, J. Crafts, S. Dobbs, B. Wojsekhowski, David H., T. Keppel


SUMMARY NOTES

SIMULATIONS

  • Work ongoing


SHIELDING AND MAGNET MODEL (Josh)

  • Shielding stacked up to top of magnet - plate added on top to make things level
  • Openings in front and back of shielding implemented
  • Flared downstream end - still need feedback from radiation simulation to finalize
  • Inlet of LCW cooling water is on upstream end - in same place as beam pipe
  • advantageous from radiation point of view: high energy particles go forward (few GeV based on e beam), energy of particles going backward is soft
  • Next steps:
  • Build rest of shield taking into account any feedback on points below
  • Need for taping on front end
  • Size of beam pipe and material needed - then can build around and make support structure
  • Structural support of tungsten powder - need more information on tungsten blocks
  • Thermal calculation for extension of core in longitudinal direction - work ongoing


ENGINEERING/DESIGN (Amy)

  • Work ongoing, e.g. thermal calculations
  • Action item: dimensions of beam pipe, etc.


HALL D DESIGN/ENGINEERING (Sean)

  • Work ongoing on front end


PAC48 RECAP

  • All comments based on close out session - report should be available soon
  • Hall D/KLong:
  • science case well received, some concern about higher level management coordination
  • Hall A/C TCS
  • Science well received
  • Main comment: need for more information on experimental setup - see if experiment is possible
  • one issue: GEM as part of trigger - high risk since never done before
  • one possible option: find out if GEM in SRO works as done for TDIS
  • Action item: Vardan present current assumptions on trigger

NPS+CPS installation - COMPLEMENTARITY

  • So far no objections based on physics


NEW CPS PHYSICS EXPERIMENT IDEAS (Bogdan)

  • Two photon exchange experiment - with photon beam from CPS better intensity, use secondary target downstream plus some detectors - need to work out details


NEXT MEETING : FRIDAY 11 SEPTEMBER AT 11AM ET

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