The electron-dose distribution surrounding an Ir-192 wire brachytherapy source investigated using EGS4 simulations and GafChromic(TM) film

被引：9
作者：
Cheung, YC
Yu, PKN
Young, ECM
Chan, CL
Ng, MF
Tang, FNF
Wong, TPY
机构：
[1] QUEEN ELIZABETH HOSP,DEPT RADIOTHERAPY & ONCOL,HONG KONG,HONG KONG
[2] AUSTIN & REPATRIAT MED CTR,HEIDELBERG,VIC 3081,AUSTRALIA
来源：
APPLIED RADIATION AND ISOTOPES | 1997年 / 48卷 / 07期
关键词：
D O I：
10.1016/S0969-8043(96)00280-1
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The steep dose gradient around Ir-192 brachytherapy wire implants is predicted by the EGS4 (PRESTA version) Monte Carlo simulation. When considering radiation absorbing regions close to the wire source, the accurate dose distribution cannot be calculated by the GE Target II Sun Spare treatment-planning system. Experiments using GafChromic(TM) film have been performed to prove the validity of the EGS4 user code when calculating the dose close to the wire source in a low energy range. (C) 1997 Elsevier Science Ltd.
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页码：985 / 990
页数：6
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