نتایج جستجو برای: 103pd
تعداد نتایج: 82 فیلتر نتایج به سال:
introduction: in this paper, by complete definition of human eye containing the various parts and their materials, the difference between this model and a homogeneous water phantom are compared for two ophthalmic plaques using 125i and 103pd. material and methods: the simulation of the two phantoms were performed in the mcnp-4c code and by using the geometry of a three-dimensional eye, differen...
Objective: Radiation dose calculations in the prostate brachytherapy practices have very high importance terms of success treatment. The purpose present study is to determine whether there a significant difference between radiation performed water medium and cancer-diagnosed patients by using Monte Carlo method.
 Methods: were on 20 BrachyDose code. Phantom geometry derived from real compu...
Radiation therapy, is one of the treatments for cancer. Brachytherapy is a radiotherapeutic technique that a sealed radiation source is placed inside or next to the tissue and has become a mainstream treatment option for cancer. Achieving maximum dose to the gland as well as minimum injury to the adjacent tissues is a basic principle in radiation therapy. Sources configuration must be designed ...
[This corrects the article on p. 337 in vol. 108.].
The new U.S. measurement standard for the air-kerma strength from low-energy photon-emitting brachytherapy seed sources is formally described in detail. This instrument-based standard was implemented on 1 January 1999, with its salient features and the implications of differences with the previous standard given only through a series of informal communications. The Wide-Angle Free-Air Chamber (...
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