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Title: Evaluation of precalibrated implantable MOSFET radiation dosimeters for megavoltage photon beams

Abstract

We have studied the response of factory calibrated implantable MOSFET detectors to absorbed doses from 100 to 400 cGy. The average measured dose is quite close to the true delivered dose, with the standard deviation falling between 1.4 and 3.6%. The measured dose tends to be slightly underestimated for smaller doses, while it tends to be slightly overestimated for larger doses. Thus, although the calibration of the detector is most accurate for doses close to the calibration dose of 200 cGy, it may be used over the range of commonly used doses in fractionated radiotherapy.

Authors:
; ;  [1]
  1. Department of Radiation Physics, Division of Radiation Oncology, University of Texas M.D. Anderson Cancer Center, Houston, Texas, 77030 (United States)
Publication Date:
OSTI Identifier:
20726896
Resource Type:
Journal Article
Resource Relation:
Journal Name: Medical Physics; Journal Volume: 32; Journal Issue: 11; Other Information: DOI: 10.1118/1.2065447; (c) 2005 American Association of Physicists in Medicine; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
61 RADIATION PROTECTION AND DOSIMETRY; CALIBRATION; CALIBRATION STANDARDS; DOSEMETERS; DOSIMETRY; EVALUATION; IN VIVO; MOSFET; PHOTON BEAMS; RADIATION DOSES; RADIOTHERAPY

Citation Formats

Briere, Tina Marie, Beddar, A. Sam, and Gillin, Michael T.. Evaluation of precalibrated implantable MOSFET radiation dosimeters for megavoltage photon beams. United States: N. p., 2005. Web. doi:10.1118/1.2065447.
Briere, Tina Marie, Beddar, A. Sam, & Gillin, Michael T.. Evaluation of precalibrated implantable MOSFET radiation dosimeters for megavoltage photon beams. United States. doi:10.1118/1.2065447.
Briere, Tina Marie, Beddar, A. Sam, and Gillin, Michael T.. Tue . "Evaluation of precalibrated implantable MOSFET radiation dosimeters for megavoltage photon beams". United States. doi:10.1118/1.2065447.
@article{osti_20726896,
title = {Evaluation of precalibrated implantable MOSFET radiation dosimeters for megavoltage photon beams},
author = {Briere, Tina Marie and Beddar, A. Sam and Gillin, Michael T.},
abstractNote = {We have studied the response of factory calibrated implantable MOSFET detectors to absorbed doses from 100 to 400 cGy. The average measured dose is quite close to the true delivered dose, with the standard deviation falling between 1.4 and 3.6%. The measured dose tends to be slightly underestimated for smaller doses, while it tends to be slightly overestimated for larger doses. Thus, although the calibration of the detector is most accurate for doses close to the calibration dose of 200 cGy, it may be used over the range of commonly used doses in fractionated radiotherapy.},
doi = {10.1118/1.2065447},
journal = {Medical Physics},
number = 11,
volume = 32,
place = {United States},
year = {Tue Nov 15 00:00:00 EST 2005},
month = {Tue Nov 15 00:00:00 EST 2005}
}