نتایج جستجو برای: 103pd

تعداد نتایج: 82  

Journal: :iranian journal of medical physics 0
zohreh dehghannia rostami graduated m.sc. student of nuclear physics, physics dept., kn toosi university of technology, tehran, iran. seyed farhad masoudi associate professor, physics dept., kn toosi university of technology, tehran. iran somayeh asadi graduated m.sc. student of nuclear physics, physics dept., kn toosi university of technology, tehran, iran.

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...

Journal: :Clinical and Experimental Health Sciences 2021

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...

ژورنال: سنجش و ایمنی پرتو 2020

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 ...

2004
Stephen M. Seltzer Paul J. Lamperti Robert Loevinger Michael G. Mitch James T. Weaver Bert M. Coursey

[This corrects the article on p. 337 in vol. 108.].

2003
Stephen M. Seltzer Paul J. Lamperti Robert Loevinger Michael G. Mitch James T. Weaver Bert M. Coursey

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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