Analytic approximate radiation effects due to Bremsstrahlung

I., Ben-Zvi

Brookhaven National Laboratory

关键词: Electrons;    Bremsstrahlung;    Water;    Energy Range;    Cavities;   

DOI  :  10.2172/1043997
RP-ID  :  BNL--97122-2012-IR
RP-ID  :  DE-AC02-98CH10886
RP-ID  :  1043997

美国|英语

来源: UNT Digital Library

【 摘 要 】

The purpose of this note is to provide analytic approximate expressions that can provide quick estimates of the various effects of the Bremsstrahlung radiation produced relatively low energy electrons, such as the dumping of the beam into the beam stop at the ERL or field emission in superconducting cavities. The purpose of this work is not to replace a dependable calculation or, better yet, a measurement under real conditions, but to provide a quick but approximate estimate for guidance purposes only. These effects include dose to personnel, ozone generation in the air volume exposed to the radiation, hydrogen generation in the beam dump water cooling system and radiation damage to near-by magnets. These expressions can be used for other purposes, but one should note that the electron beam energy range is limited. In these calculations the good range is from about 0.5 MeV to 10 MeV. To help in the application of this note, calculations are presented as a worked out example for the beam dump of the R&D Energy Recovery Linac.