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Title: Chest wall thickness measurements for enriched uranium: An alternative approach

Abstract

Human Monitoring Laboratory has developed a technique to determine the chest wall thickness of an individual using information from the spectrum produced by internally deposited radionuclides. The technique has been investigated both theoretically and practically using phoswich detectors and the Lawrence Livermore Torso Phantom. The phantom was used with lung sets containing homogeneously distributed 93% enriched uranium, 20% enriched uranium, natural uranium, and {sup 241}Am. It was found that a 3-cm chest wall thickness can be estimated to within 9% when measuring 93% enriched uranium. The technique does not work for the latter two radionuclides because of an insufficient separation in the photon energies and poor resolution of the phoswich detectors. The technique is only of value for activity levels limit. 5 refs., 3 figs., 1 tab.

Authors:
 [1];  [2]
  1. Human Monitoring Lab., Ottawa, Ontario (Canada)
  2. Institute of Atomic Physics, Bucharest (Romania)
Publication Date:
OSTI Identifier:
249946
Resource Type:
Journal Article
Journal Name:
Health Physics
Additional Journal Information:
Journal Volume: 66; Journal Issue: 5; Other Information: PBD: May 1994
Country of Publication:
United States
Language:
English
Subject:
56 BIOLOGY AND MEDICINE, APPLIED STUDIES; 05 NUCLEAR FUELS; CHEST; THICKNESS; ENRICHED URANIUM; OCCUPATIONAL EXPOSURE; ACTIVITY LEVELS; NATURAL URANIUM; AMERICIUM 241; LUNGS; RETENTION; COUNTING TECHNIQUES; PHOTONS

Citation Formats

Kramer, G H, and Puscalau, M. Chest wall thickness measurements for enriched uranium: An alternative approach. United States: N. p., 1994. Web. doi:10.1097/00004032-199405000-00011.
Kramer, G H, & Puscalau, M. Chest wall thickness measurements for enriched uranium: An alternative approach. United States. https://doi.org/10.1097/00004032-199405000-00011
Kramer, G H, and Puscalau, M. 1994. "Chest wall thickness measurements for enriched uranium: An alternative approach". United States. https://doi.org/10.1097/00004032-199405000-00011.
@article{osti_249946,
title = {Chest wall thickness measurements for enriched uranium: An alternative approach},
author = {Kramer, G H and Puscalau, M},
abstractNote = {Human Monitoring Laboratory has developed a technique to determine the chest wall thickness of an individual using information from the spectrum produced by internally deposited radionuclides. The technique has been investigated both theoretically and practically using phoswich detectors and the Lawrence Livermore Torso Phantom. The phantom was used with lung sets containing homogeneously distributed 93% enriched uranium, 20% enriched uranium, natural uranium, and {sup 241}Am. It was found that a 3-cm chest wall thickness can be estimated to within 9% when measuring 93% enriched uranium. The technique does not work for the latter two radionuclides because of an insufficient separation in the photon energies and poor resolution of the phoswich detectors. The technique is only of value for activity levels limit. 5 refs., 3 figs., 1 tab.},
doi = {10.1097/00004032-199405000-00011},
url = {https://www.osti.gov/biblio/249946}, journal = {Health Physics},
number = 5,
volume = 66,
place = {United States},
year = {Sun May 01 00:00:00 EDT 1994},
month = {Sun May 01 00:00:00 EDT 1994}
}