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Comparison of factors given in ICRU Report 23 and IAEA TRS 277 for converting from exposure/air kerma to absorbed dose to water for medium energy X-rays

Technical Report:

Abstract

New values of the factors required to convert the reading of an ionization chamber calibrated in terms of air kerma (or exposure) to absorbed dose to water for medium energy X-rays were given in a Code of Practice published by the IAEA in 1987. These factors differ by a maximum of 12.5% at 0.15 mm Cu HVL from those given in ICRU Report 23. This paper discusses the difference between the ICRU and IAEA conversion factors and forms the basis of the recommendation of the IPSM low and medium energy X-ray dosimetry working party, that dosimetry in the U.K. should continue to be based on ICRU Report 23 and therefore on the current HPA Code of Practice. (author).
Authors:
Publication Date:
Feb 01, 1991
Product Type:
Technical Report
Report Number:
NPL-RSA(EXT)-15
Reference Number:
SCA: 560101; PA: AIX-23:014506; SN: 92000646819
Resource Relation:
Other Information: PBD: Feb 1991
Subject:
61 RADIATION PROTECTION AND DOSIMETRY; IONIZATION CHAMBERS; CALIBRATION; ABSORPTION; AIR; COMPARATIVE EVALUATIONS; CORRECTIONS; ENERGY DEPOSITION; IAEA; ICRU; KERMA; RADIATION DOSES; WATER; 560101; DOSIMETRY AND MONITORING
OSTI ID:
10113147
Research Organizations:
National Physical Lab., Teddington (United Kingdom)
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Other: ON: DE92614986; TRN: GB9105331014506
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
GBN
Size:
18 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Rosser, K E. Comparison of factors given in ICRU Report 23 and IAEA TRS 277 for converting from exposure/air kerma to absorbed dose to water for medium energy X-rays. United Kingdom: N. p., 1991. Web.
Rosser, K E. Comparison of factors given in ICRU Report 23 and IAEA TRS 277 for converting from exposure/air kerma to absorbed dose to water for medium energy X-rays. United Kingdom.
Rosser, K E. 1991. "Comparison of factors given in ICRU Report 23 and IAEA TRS 277 for converting from exposure/air kerma to absorbed dose to water for medium energy X-rays." United Kingdom.
@misc{etde_10113147,
title = {Comparison of factors given in ICRU Report 23 and IAEA TRS 277 for converting from exposure/air kerma to absorbed dose to water for medium energy X-rays}
author = {Rosser, K E}
abstractNote = {New values of the factors required to convert the reading of an ionization chamber calibrated in terms of air kerma (or exposure) to absorbed dose to water for medium energy X-rays were given in a Code of Practice published by the IAEA in 1987. These factors differ by a maximum of 12.5% at 0.15 mm Cu HVL from those given in ICRU Report 23. This paper discusses the difference between the ICRU and IAEA conversion factors and forms the basis of the recommendation of the IPSM low and medium energy X-ray dosimetry working party, that dosimetry in the U.K. should continue to be based on ICRU Report 23 and therefore on the current HPA Code of Practice. (author).}
place = {United Kingdom}
year = {1991}
month = {Feb}
}