Monte Carlo method for calculating the radiation skyshine produced by electron accelerators

被引：7

作者：

Kong, CC ^{[1
]}

Li, QF

Chen, HB

Du, TB

Cheng, C

Tang, CX

Zhu, L

Zhang, H

Pei, ZG

Ming, SJ

机构：

[1] Tsing Hua Univ, Dept Engn Phys, Beijing 100084, Peoples R China

[2] Tsing Hua Univ, Lab Radiat & Environm Protect, Beijing 100084, Peoples R China

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2005年 / 234卷 / 03期

关键词：

accelerator shielding; skyshine; empirical formulas; Monte Carlo method; MCNP4C; X-ray target;

D O I：

10.1016/j.nimb.2005.01.012

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Using the MCNP4C Monte Carlo code, the X-ray skyshine produced by 9 MeV, 15 MeV and 21 MeV electron linear accelerators were calculated respectively with a new two-step method combined with the split and roulette variance reduction technique. Results of the Monte Carlo simulation, the empirical formulas used for skyshine calculation and the dose measurements were analyzed and compared. In conclusion, the skyshine dose measurements agreed reasonably with the results computed by the Monte Carlo method, but deviated from computational results given by empirical formulas. The effect on skyshine dose caused by different structures of accelerator head is also discussed in this paper. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：269 / 274

页数：6