title: Improvement in the practical implementation of neutron source strength calibration using prompt gamma rays.
abstract: In this study, the neutron emission rate from neutron sources using prompt gamma rays in hydrogen was determined, and several improvements were applied. Using Monte Carlo calculations, the best positions for the source, moderator and detector relative to each other were selected. For (241)Am-Be and (252)Cf sources, the sizes for polyethylene spheres with the highest efficiency were 12- and 10-inch, respectively. In addition, a new shielding cone was designed to account for scattered neutrons and gamma rays. The newly designed shielding cone, which is 45 cm in length, provided suitable attenuation for the source radiation.
authors.affiliation: Physics Department, Faculty of Sciences, Golestan University, Gorgan 49138-15739, Iran. r.khabaz@gu.ac.ir
authors.forename: Rahim
authors.initials: R
authors.lastname: Khabaz
authors.forename: Hector
authors.initials: H
authors.lastname: Rene Vega-Carrillo
mesh_terms: D002138:Calibration; D003198:Computer Simulation; D005720:Gamma Rays; D006859:Hydrogen / Q000737:chemistry*; D008956:Models, Chemical; D015233:Models, Statistical; D009010:Monte Carlo Method; D009502:Neutrons; D011829:Radiation Dosage; D011874:Radiometry / Q000379:methods*
chemical_list: D006859:Hydrogen