Neutron H*(10) estimation and measurements around 18 MV linac

被引:8
|
作者
Ceron Ramirez, Pablo Victor [1 ]
Diaz Gongora, Jose Antonio Iran [1 ]
Paredes Gutierrez, Lydia Concepcion [2 ]
Rivera Montalvo, Teodoro [1 ]
Vega Carrillo, Hector Rene [3 ]
机构
[1] Inst Politecn Nacl, Ctr Invest Ciencia Aplicada & Tecnol, Calzada Legaria 694, Avanzada Legaria 11500, Mexico
[2] Inst Nacl Invest Nucl, Carretera Mexico Toluca S-N, Ocoyoacac, Mexico
[3] Univ Autonoma Zacatecas, Unidad Acad Estudios Nucl, Apdo Postal 336, Zacatecas 98000, Mexico
关键词
Neutron dosimetry; LINAC; Monte Carlo; MONTE-CARLO; DOSE-EQUIVALENT; PHOTONEUTRONS; SPECTRA; PAIRS; BEAM;
D O I
10.1016/j.apradiso.2016.05.006
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Thermoluminescent dosimetry, analytical techniques and Monte Carlo calculations were used to estimate the dose of neutron radiation in a treatment room with a linear electron accelerator of 18 MV. Measurements were carried out through neutron ambient dose monitors which include pairs of thermo-luminescent dosimeters TLD 600 ((LiF)-Li-6: Mg, Ti) and TLD 700 ((LiF)-Li-7: Mg, Ti), which were placed inside a paraffin spheres. The measurements has allowed to use NCRP 151 equations, these expressions are useful to find relevant dosimetric quantities. In addition, photoneutrons produced by linac head were calculated through MCNPX code taking into account the geometry and composition of the linac head principal parts. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2 / 7
页数:6
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