Document Detail


A convolution/superposition method using primary and scatter dose kernels formed for energy bins of X-ray spectra reconstructed as a function of off-axis distance: comparison of calculated and measured 10-MV X-ray doses in thorax-like phantoms.
MedLine Citation:
PMID:  21695408     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
We performed experimental studies on the convolution/superposition method reported in the former companion paper (Iwasaki in Radiol Phys Technol 4, 2011) using 10-MV X-ray beams from open-jaw-collimated fields. The method uses primary and scatter dose kernels formed for energy bins of X-ray spectra reconstructed as a function of off-axis distance. We made a comparison of calculations and measurements in water phantoms and thorax-like phantoms with respect to percentage depth dose curves, tissue-phantom ratio curves, and dose profiles. We made the dose calculation by taking into account the beam-hardening effect with depth and the off-axis radiation-softening effect. We found that the method could be used, in general, for performing accurate dose calculations.
Authors:
Shigenobu Kimura; Kohji Sutoh; Kazuo Kamimura; Akira Iwasaki; Makoto Sasamori; Fumio Komai; Morio Seino; Singo Terashima; Mamoru Kubota; Junichi Hirota; Yoichiro Hosokawa
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-6-22
Journal Detail:
Title:  Radiological physics and technology     Volume:  -     ISSN:  1865-0341     ISO Abbreviation:  -     Publication Date:  2011 Jun 
Date Detail:
Created Date:  2011-6-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101467995     Medline TA:  Radiol Phys Technol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Radiology, Aomori City Hospital, 1-14-20 Katta, Aomori, Aomori, 030-0821, Japan, rad_rtp_aomori@msb.biglobe.ne.jp.
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