Meeting 21 October 2022

PARTICIPANTS: Gabriel, Amy, Bogdan, Hamlet, Hovanes, Rolf, Vardan, Tanja, Marie

UPDATE SHIELDING SIMULATION

• Goal: determine if reduced shielding configuration sufficient

• Full geometry implemented in FLUKA - uses radiation length of material as guidance instead of individual blocks as that needs too much computing resources

• 1.5 m^3 (~20 tons of lead)

• Results suggests that sides are performing well

• Front needs further investigation to determine if need more shielding material there

• need to check radiation limits around target

• Action item: write-up of the simulation studies for further evaluation if all works

• Text from CPS 2018 Technical Review

• Radiation studies have been carried out assuming 1000 hours of operation with

the following radiation requirements:

• Prompt dose rate in hall = several rem/hr at 30 feet from device.
• Prompt dose rate at the site boundary = 1 µrem/hr.
• Activation dose outside the device envelope at one foot distance =

several mrem/hr one hour after the end of a1000 hour run.

• Activation dose at the pivot in the experimental target area at one foot

distance from the scattering chamber = several mrem/hr one hour after the end of a 1000 hour run.

ENGINEERING/DESIGN

• Implemented FLUKA as input into a Fluent-like program to calculate power depositions, cooling, etc.

• Next, will import the data into Fluent

HALLD

• Radiation dose calculations ongoing

• Question about if Hall C or Hall D CPS will be the first to start operation

NEXT MEETING: 11 NOVEMBER AT 9:00AM ET