Gas bremsstrahlung shielding calculation for first optic enclosure of ILSF XPD beamline

H Beigzadeh Jalali; E Salimi; J Rahighi

doi:10.1016/j.apradiso.2017.08.011

Gas bremsstrahlung shielding calculation for first optic enclosure of ILSF XPD beamline

Appl Radiat Isot. 2017 Nov:129:62-66. doi: 10.1016/j.apradiso.2017.08.011. Epub 2017 Aug 8.

Authors

H Beigzadeh Jalali¹, E Salimi², J Rahighi²

Affiliations

¹ Iranian Light Source Facility, ILSF, Institute for Research in Fundamental Sciences, IPM, Tehran, Iran. Electronic address: hamideh.jalali@ipm.ir.
² Iranian Light Source Facility, ILSF, Institute for Research in Fundamental Sciences, IPM, Tehran, Iran.

PMID: 28810155
DOI: 10.1016/j.apradiso.2017.08.011

Abstract

Gas bremsstrahlung is generated in high energy electron storage ring and accompanies the synchrotron radiation into the beamlines, where both strike the various components of the beamline. In this paper, radiation shielding calculations for secondary gas bremsstrahlung are performed for the First Optics Enclosure (FOE) of X-ray powder diffraction (XPD) beamline of the Iranian Light Source Facility. Dose equivalent rate (DER) calculations are accomplished using FLUKA Monte Carlo code. A comprehensive study of DER distribution at the back wall, sides and roof are given.

Keywords: Beamline; Dose equivalent rate; FLUKA; Gas bremsstrahlung; Shielding.