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Standardization of iridium-192 coiled source in terms of air kerma output

Abstract

ICRU (1985) recommended that the output of gamma ray brachytherapy sources should be specified in terms of reference air kerma rate, defined as the kerma rate to air in air at a reference distance of 1 meter, perpendicular to the long axis of the source, corrected for air attenuation and scattering. As these measurements are difficult to carry out in the routine clinical use, it is the common practice to calibrate the re-entrant ionization chamber with respect to open air measurements and use the re-entrant chamber for routine measurements. This paper reports on the measurements carried out to correlate the nominal activity and air kerma rate of {sup 192}Ir wire sources supplied by the Board of Radiation and Isotope Technology, Department of Atomic Energy. (author). 3 refs, 1 tab.
Authors:
Shanta, A; Unnikrishnan, K; Tripathi, U B; Kannan, A; Iyer, P S [1] 
  1. Bhabha Atomic Research Centre, Bombay (India)
Publication Date:
Aug 01, 1996
Product Type:
Technical Report
Report Number:
IAEA-TECDOC-896; CONF-940864-
Reference Number:
SCA: 070207; PA: AIX-28:018252; EDB-97:024699; SN: 97001735926
Resource Relation:
Conference: Interregional seminar on radiotherapy dosimetry: radiation dose in radiotherapy from prescription to delivery, Rio de Janeiro (Brazil), 27-30 Aug 1994; Other Information: PBD: Aug 1996; Related Information: Is Part Of Radiation dose in radiotherapy from prescription to delivery; PB: 293 p.
Subject:
07 ISOTOPE AND RADIATION SOURCE TECHNOLOGY; IRIDIUM 192; GAMMA SOURCES; STANDARDIZATION; WIRES; RADIOTHERAPY; AIR; CALIBRATION STANDARDS; COMPARATIVE EVALUATIONS; CORRECTIONS; DOSE RATES; DOSIMETRY; EXPERIMENTAL DATA; GAMMA RADIATION; INDIA; IONIZATION CHAMBERS; KERMA
OSTI ID:
429957
Research Organizations:
International Atomic Energy Agency, Vienna (Austria)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 1011-4289; Other: ON: DE97614216; TRN: XA9642860018252
Availability:
INIS; OSTI as DE97614216
Submitting Site:
INIS
Size:
pp. 199-201
Announcement Date:

Citation Formats

Shanta, A, Unnikrishnan, K, Tripathi, U B, Kannan, A, and Iyer, P S. Standardization of iridium-192 coiled source in terms of air kerma output. IAEA: N. p., 1996. Web.
Shanta, A, Unnikrishnan, K, Tripathi, U B, Kannan, A, & Iyer, P S. Standardization of iridium-192 coiled source in terms of air kerma output. IAEA.
Shanta, A, Unnikrishnan, K, Tripathi, U B, Kannan, A, and Iyer, P S. 1996. "Standardization of iridium-192 coiled source in terms of air kerma output." IAEA.
@misc{etde_429957,
title = {Standardization of iridium-192 coiled source in terms of air kerma output}
author = {Shanta, A, Unnikrishnan, K, Tripathi, U B, Kannan, A, and Iyer, P S}
abstractNote = {ICRU (1985) recommended that the output of gamma ray brachytherapy sources should be specified in terms of reference air kerma rate, defined as the kerma rate to air in air at a reference distance of 1 meter, perpendicular to the long axis of the source, corrected for air attenuation and scattering. As these measurements are difficult to carry out in the routine clinical use, it is the common practice to calibrate the re-entrant ionization chamber with respect to open air measurements and use the re-entrant chamber for routine measurements. This paper reports on the measurements carried out to correlate the nominal activity and air kerma rate of {sup 192}Ir wire sources supplied by the Board of Radiation and Isotope Technology, Department of Atomic Energy. (author). 3 refs, 1 tab.}
place = {IAEA}
year = {1996}
month = {Aug}
}