نتایج جستجو برای: dose verification

تعداد نتایج: 384124  

Journal: :Applied sciences 2021

Proton therapy represents a technologically advanced method for delivery of radiation treatments to tumors. The determination the biological effectiveness is one objectives MoVe IT (Modeling and Verification Ion Beam Treatment Planning) project National Institute Nuclear Physics (INFN) CSN5. aim present work, which part project, was evaluate performance thermoluminescent dosimeters (TLDs-100) d...

Journal: :journal of biomedical physics and engineering 0
f. bouzarjomehri department of medical physics, shahid sadoughi university of medical sciences, yazd, iran v. tsapaki department of medical physics, konstantopoulio hospital, nea ionia, athens, greece

introduction: active personal dosimeters (apds) are well accepted as useful and reliable instruments for individual dosimetry measurements. apds have many advantages compared with passive dosimeters for individual external radiation dose assessments. in routine monitoring, occupational exposure is carried out for verification and demonstration of compliance with the regulatory dose limits. so, ...

I. Aldahlawi, M. Afzal, M.N. Anjum, R. Ruo, W. Parker,

Background: We have validated the monitor unit calculations from a commercially available treatment planning system (TPS) for three intensity modulated radiotherapy (IMRT) planning techniques for tangential breast irradiation by using ionization chamber measurements. Materials and Methods: Treatment plans were generated for forty-two breast patients by a forward planned field in field ...

2013
Yigit CECEN Bora SINDIR M. Gamze AKSU Beyza S. OZDEMIR Aylin F. KORCUM Nina TUNCEL Melek N. YAVUZ

The aim of this study was to establish a fast and simple online dosimetric verification method for total body irradiation (TBI) using semiconductor diodes. Twenty one patients were treated with fractionated TBI (12 Gy, 2 Gy BID) using a modified standing technique between February 2010 and March 2012. The prescribed dose was administered to the patient’s mid-plane at the level of the umbilicus....

2017
Keita Kurosu Iori Sumida Hiroya Shiomi Hirokazu Mizuno Hiroko Yamaguchi Hirofumi Okubo Keisuke Tamari Yuji Seo Osamu Suzuki Seiichi Ota Shinichi Inoue Kazuhiko Ogawa

In this CyberKnife® dose verification study, we investigated the effectiveness of the novel potential error (PE) concept when applied to the determination of a robust measurement point for targeting errors. PE was calculated by dividing the differences between the maximum increases and decreases in dose distributions by the original distribution after obtaining the former by shifting the source...

Journal: :Journal of Nuclear Medicine & Radiation Therapy 2014

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