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Title: Calibration of Film for Accurate Megavoltage Photon Dosimetry

Abstract

An accurate method of converting film density to dose is presented. For films oriented parallel to the beam’s central axis, calibration curves were produced at several depths using Kodak XV-2 film for cobalt-60, 4 MV, and 18 MV beams. Then the appropriate curve was employed to convert the film density to dose at a specific depth. It is hypothesized that the change in film response with depth is due to changes in the photon spectra at depth in a phantom.

Authors:
 [1]; ;  [2]
  1. Queen’s University, Department of Physics, Kingston, Ontario, Canada, K7L 3N6 (Canada)
  2. Kingston Regional Cancer Centre, 25 King Street West, Kingston, Ontario, Canada, K7L 5P9 (Canada)
Publication Date:
OSTI Identifier:
22577834
Resource Type:
Journal Article
Resource Relation:
Journal Name: Medical Dosimetry; Journal Volume: 19; Journal Issue: 1; Other Information: Copyright (c) 1994 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
61 RADIATION PROTECTION AND DOSIMETRY; 62 RADIOLOGY AND NUCLEAR MEDICINE; CALIBRATION; COBALT 60; FILM DOSIMETRY; PHANTOMS; PHOTON BEAMS; PHOTONS; RADIATION DOSES; SPECTRA

Citation Formats

Hale, J.I., Kerr, A.T., and Shragge, P.C. Calibration of Film for Accurate Megavoltage Photon Dosimetry. United States: N. p., 2015. Web. doi:10.1016/0958-3947(94)90032-9.
Hale, J.I., Kerr, A.T., & Shragge, P.C. Calibration of Film for Accurate Megavoltage Photon Dosimetry. United States. doi:10.1016/0958-3947(94)90032-9.
Hale, J.I., Kerr, A.T., and Shragge, P.C. Thu . "Calibration of Film for Accurate Megavoltage Photon Dosimetry". United States. doi:10.1016/0958-3947(94)90032-9.
@article{osti_22577834,
title = {Calibration of Film for Accurate Megavoltage Photon Dosimetry},
author = {Hale, J.I. and Kerr, A.T. and Shragge, P.C.},
abstractNote = {An accurate method of converting film density to dose is presented. For films oriented parallel to the beam’s central axis, calibration curves were produced at several depths using Kodak XV-2 film for cobalt-60, 4 MV, and 18 MV beams. Then the appropriate curve was employed to convert the film density to dose at a specific depth. It is hypothesized that the change in film response with depth is due to changes in the photon spectra at depth in a phantom.},
doi = {10.1016/0958-3947(94)90032-9},
journal = {Medical Dosimetry},
number = 1,
volume = 19,
place = {United States},
year = {Thu Jan 15 00:00:00 EST 2015},
month = {Thu Jan 15 00:00:00 EST 2015}
}