View source for Meeting 30 October 2020

DISCUSSION ITEMS

* Simulations - parameterization of power deposition

* Shielding and magnet model - check of numbers of modules and analysis of radiation hard coil model
::* [https://wiki.jlab.org/cuawiki/images/8/84/CPS_Initial_Design_Model_10_29_20.pptx CPS Design Model Update]

* Hall A/C model and design/implementation - thermal model development etc.

* Hall D design and radiation simulations

* Other


PARTICIPANTS: Amy Comer, Rolf Ent, Hamlet Mkrtchyan, Hovanes Egiyan, Igor Strakovsky, Josh Crafts, Steven Lassiter, Vardan Tadevosyan, Vladimir Berdnikov, Tanja Horn, Marie Boer


'''SUMMARY NOTES'''

'''SIMULATIONS POWER DEPOSITION''' (Gabriel)

* Apply two-Gaussian to all panels

* '''Action''': make a paramaterization in z (with some segmentation in x) - the quality of the tails in the fit may not be so important
::* Also investigate if possible to use lookup tables


'''SHIELDING MODELING''' (Josh)

* Investigation of number of blocks - issue found and resolved
::* Pb blocks 1867, W blocks ~2200
::* expect Pb weight 28 tons, W weight ~20 tons

* Surface quality: if block sizes small should have small tolerances - sensitivity in stacking
::* alternative: large W block, e.g. 10 tons or so like for spectrometer collimator?
::* '''Action''': status of CUA tests with W blocks

* '''Action''': continue shielding model work


'''DESIGN/IMPLEMENTATION - THERMAL CALCULATIONS''' (Amy)

* CPS: length: 20cm, width starts at a few mmm, depth

* '''Action''': investigate why temperature output high, e.g. heat source input too large (should be total 30kW for entire system), assumptions on cooling pipes, etc.


'''HALLD UPDATES - RADIATION SIMULATIONS''' (Hovanes)

* Investigating energy deposition - cooling system
::* Working on Fluka simulations, modify gap and beam size and investigate energy deposition
::* Working on GEANT4 simulations - Jim Ritman team
::* Working with JLab RadCon team on another code - for beryllium source and CPS


'''NEXT MEETING: FRIDAY 4 DECEMBER AT 8:00AM (ET)'''