Difference between revisions of "April 09, 2024 KLONG CPS Design Meeting"

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== Minutes ==
 
== Minutes ==
 
* Discussed minutes from last meeting
 
* Discussed minutes from last meeting
−
**
+
* Pavel looked at radiation after experiment and it is decided we can remove the poly shielding 1 week after the end of beam in order to move the assy closer to the north wall
 +
* Discussed Magnet design
 +
** High rad resistant resin (CTD403) has hazardous characteristics with cyanide. It may be better (and cheaper) to use a resin such as CTD101K which is much cheaper but still radiation hard (10^5 grey).
 +
** Give Pavel the current magnet model to run in Fluka to determine the needed radiation levels
 +
** Magnet positioned 2cm below beam center
 +
* Discussed the portion of the CPS that will be moved north after experiment
 +
** May be a good idea to move the magnet with the absorber/shielding assembly
 +
** Supporting magnet from the absorber assy support may be useful
 +
** Steel shielding over magnet may be attached (not required) and moved with magnet to keep radiation levels down
 +
* Radiator design
 +
** may be a long shaft to bring motor outside shielding
 +
** may be a rack and pinion or worm gear type of set up
 +
** thick target, thin target and empty space needed
 +
** target will be in air
 +
* Vacuum window downstream of diagnostic girder may be 100um aluminum (2.5 cm diameter)
 +
* Vacuum window on US end of permanent magnet may be Kapton if needed
 +
* Pavel requests a nitrogen purge in copper absorber area
 +
* Copper absorber
 +
** Hovanes shows 52.9KW absorbed from Pavel model 78
 +
** Tim's ANSYS model shows 51.14KW. Maybe ok sine the 8 1/2" water holes are in the model
 +
** Eugene was concerned with brazed joints for water cooling
 +
** After More discussion after the meeting, we will prsue brazing 3/8 inch tube into the absorber
 +
*** Keith will work with JLAB vacuum brazing to come up with a prototype model to test
 +
* Josh came up with a possible way to transfer models to Fluka from ANSYS. He will get a model to Pavel to see if this works
 +
* The lead bricks are here from SLAC. A PR is written to get them painted
  
 
== Action Items ==
 
== Action Items ==

Revision as of 16:01, 9 April 2024

Meeting Time and Place

Tuesday, April 09, 2024, 1pm Hall D Counting House

  • Invited - Hovanes Egiyan, Stephanie Worthington, Keith Harding, Pavel Degtiarenko, Tim Whitlatch, Eugene Chudakov, Josh Ballard

Agenda

Minutes

  • Discussed minutes from last meeting
  • Pavel looked at radiation after experiment and it is decided we can remove the poly shielding 1 week after the end of beam in order to move the assy closer to the north wall
  • Discussed Magnet design
    • High rad resistant resin (CTD403) has hazardous characteristics with cyanide. It may be better (and cheaper) to use a resin such as CTD101K which is much cheaper but still radiation hard (10^5 grey).
    • Give Pavel the current magnet model to run in Fluka to determine the needed radiation levels
    • Magnet positioned 2cm below beam center
  • Discussed the portion of the CPS that will be moved north after experiment
    • May be a good idea to move the magnet with the absorber/shielding assembly
    • Supporting magnet from the absorber assy support may be useful
    • Steel shielding over magnet may be attached (not required) and moved with magnet to keep radiation levels down
  • Radiator design
    • may be a long shaft to bring motor outside shielding
    • may be a rack and pinion or worm gear type of set up
    • thick target, thin target and empty space needed
    • target will be in air
  • Vacuum window downstream of diagnostic girder may be 100um aluminum (2.5 cm diameter)
  • Vacuum window on US end of permanent magnet may be Kapton if needed
  • Pavel requests a nitrogen purge in copper absorber area
  • Copper absorber
    • Hovanes shows 52.9KW absorbed from Pavel model 78
    • Tim's ANSYS model shows 51.14KW. Maybe ok sine the 8 1/2" water holes are in the model
    • Eugene was concerned with brazed joints for water cooling
    • After More discussion after the meeting, we will prsue brazing 3/8 inch tube into the absorber
      • Keith will work with JLAB vacuum brazing to come up with a prototype model to test
  • Josh came up with a possible way to transfer models to Fluka from ANSYS. He will get a model to Pavel to see if this works
  • The lead bricks are here from SLAC. A PR is written to get them painted

Action Items

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