title: Comparison of synchrotron radiation calculations between analytical codes (STAC8, photon) and Monte Carlo codes (FLUKA, EGS4).
abstract: STAC8 is a significant improvement upon its predecessor PHOTON and is a valuable analytical code for quick and conservative beamline shielding designs for synchrotron radiation (SR) facilities. In order to check the applicability, accuracy and limitations of STAC8, studies were conducted to compare the results of STAC8 with those of PHOTON with calculations using the FLUKA and EGS4 Monte Carlo codes. Doses and spectra for scattered SR in a few beam-target-shield geometries were calculated, with and without photon linear polarisation effects. Areas for expanding the STAC8 capabilities, for example, features of the mirror-reflected lights and double-Compton light calculations and the use of monochromatic light have been identified. Some of these features have been implemented and benchmarked against Monte Carlo calculations. Reasonable agreements were found between the STAC8 and Monte Carlo calculations.
authors.affiliation: Radiation Protection Department, Stanford Linear Accelerator Center, MS 48, P.O. Box 20450, Stanford, CA 94309, USA. james@slac.stanford.edu
authors.forename: J C
authors.initials: JC
authors.lastname: Liu
authors.forename: A
authors.initials: A
authors.lastname: Fasso
authors.forename: A
authors.initials: A
authors.lastname: Prinz
authors.forename: S
authors.initials: S
authors.lastname: Rokni
authors.forename: Y
authors.initials: Y
authors.lastname: Asano
mesh_terms: D000465:Algorithms; D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D015233:Models, Statistical; D009010:Monte Carlo Method; D011829:Radiation Dosage; D011835:Radiation Protection / Q000379:methods*; D011874:Radiometry / Q000379:methods*; D012984:Software; D012986:Software Validation; D017356:Synchrotrons / Q000295:instrumentation*