Measurement of radiation heating induced by secondary particles from 12-GeV primary proton-beam interactions

We measured radiation heating induced by secondary particles from 12-GeV primary proton-beam interactions. A newly developed “cryogenic calorimeter” technique was employed to precisely measure heat fluxes of 0.2-1 W deposited in a large copper absorber. The results were compared with calculations by using Monte-Carlo codes, MARS and PHITS.