Comparison of TLD calibration methods for 192Ir dosimetry

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Comparison of TLD calibration methods for  192Ir dosimetry

For the purpose of dose measurement using a high-dose rate (192)Ir source, four methods of thermoluminescent dosimeter (TLD) calibration were investigated. Three of the four calibration methods used the (192)Ir source. Dwell times were calculated to deliver 1 Gy to the TLDs irradiated either in air or water. Dwell time calculations were confirmed by direct measurement using an ionization chambe...

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Improvement of Accuracy in Environmental Dosimetry by TLD Cards Using Three-dimensional Calibration Method

Background: The angular dependency of response for TLD cards may cause deviation from its true value on the results of environmental dosimetry, since TLDs may be exposed to radiation at different angles of incidence from the surrounding area.Objective: A 3D setting of TLD cards has been calibrated isotropically in a standard radiation field to evaluate the improvement of the accuracy of meas...

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Improvement of Accuracy in Environmental Dosimetry by TLD Cards Using Three-dimensional Calibration Method

INTRODUCTION The angular dependency of response for TLD cards may cause deviation from its true value on the results of environmental dosimetry, since TLDs may be exposed to radiation at different angles of incidence from the surrounding area. OBJECTIVE A 3D setting of TLD cards has been calibrated isotropically in a standard radiation field to evaluate the improvement of the accuracy of meas...

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comparison of the obtained results from two calibration methods in mri brachytherapy normoxic polymer gel dosimetry

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ژورنال

عنوان ژورنال: Journal of Applied Clinical Medical Physics

سال: 2013

ISSN: 1526-9914

DOI: 10.1120/jacmp.v14i1.4037