THE ELECTRON-DOSE DISTRIBUTION SURROUNDING AN IR-192 WIRE BRACHYTHERAPY SOURCE INVESTIGATED USING EGS4 SIMULATIONS AND GAFCHROMIC(TM) FILM

Authors
CHEUNG YC YU PKN YOUNG ECM CHAN CL NG MF TANG FNF WONG TPY
Citation
Yc. Cheung et al., THE ELECTRON-DOSE DISTRIBUTION SURROUNDING AN IR-192 WIRE BRACHYTHERAPY SOURCE INVESTIGATED USING EGS4 SIMULATIONS AND GAFCHROMIC(TM) FILM, Applied radiation and isotopes, 48(7), 1997, pp. 985-990
Citations number
11
Categorie Soggetti
Nuclear Sciences & Tecnology","Radiology,Nuclear Medicine & Medical Imaging","Chemistry Inorganic & Nuclear
Journal title
Applied radiation and isotopes
ISSN journal
09698043 → ACNP
Volume
48
Issue
7
Year of publication
1997
Pages
985 - 990
Database
ISI
SICI code
0969-8043(1997)48:7<985:TEDSAI>2.0.ZU;2-I
Abstract
The steep dose gradient around Ir-192 brachytherapy wire implants is p redicted by the EGS4 (PRESTA version) Monte Carlo simulation. When con sidering radiation absorbing regions close to the wire source, the acc urate dose distribution cannot be calculated by the GE Target II Sun S pare treatment-planning system. Experiments using GafChromic(TM) film have been performed to prove the validity of the EGS4 user code when c alculating the dose close to the wire source in a low energy range. (C ) 1997 Elsevier Science Ltd.