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Title: New developments in ultrasonic imaging of the chest and other body organs. [Personnel monitoring for Pu deposited in lungs]

Abstract

The accurate measurement of transuranic elements deposited in the lung is a complex task. One of the problems is measuring uranium-L x-rays associated with plutonium passing through the chest of an accidentally exposed subject. Because the normal human chest-wall thickness varies from about 1 to 4.5 cm, it is important that an accurate determination be made for every person counted for plutonium or for other heavy elements with similar emissions. An ultrasonic B-scanning system (brightness modulated time-base) was developed for defining the structure within the body. Computer programs were written to determine the distance between the lung and chest-wall interface and the outer surface of the chest wall at several points on each scan. These points are exponentially averaged to obtain an average chest-wall thickness that is used, with other information, to derive a calibration factor for plutonium in the subject. It is also combined with the counting data to obtain the plutonium lung burden. Since photon transmission characteristics differ in fat and soft tissue, assessing the fat content is important and can provide a correction factor for counter sensitivity when viewing various organs. The main advantage of the B-scanning and three-dimensional systems are discussed.

Authors:
;
Publication Date:
Research Org.:
California Univ., Livermore (USA). Lawrence Livermore Lab.
OSTI Identifier:
6787272
Report Number(s):
UCRL-80340; CONF-780612-4
TRN: 78-014998
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Conference: Symposium on advances in radiation protection monitoring, Stockholm, Sweden, 26 Jun 1978
Country of Publication:
United States
Language:
English
Subject:
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; 11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; ADIPOSE TISSUE; ACOUSTIC MEASUREMENTS; CHEST; LUNGS; PHOTON TRANSMISSION SCANNING; PLUTONIUM; RADIONUCLIDE KINETICS; TRANSURANIUM ELEMENTS; PERSONNEL MONITORING; ANATOMY; BODY BURDEN; CHEMICAL COMPOSITION; DAUGHTER PRODUCTS; THICKNESS; ULTRASONIC TESTING; URANIUM; WALL EFFECTS; X-RAY DETECTION; ACOUSTIC TESTING; ACTINIDES; BODY; BODY AREAS; CONNECTIVE TISSUE; DIAGNOSTIC TECHNIQUES; DIMENSIONS; ELEMENTS; ISOTOPES; MATERIALS TESTING; METALS; MONITORING; NONDESTRUCTIVE TESTING; ORGANS; RADIATION DETECTION; RADIATION MONITORING; RESPIRATORY SYSTEM; TESTING; TISSUES; 560171* - Radiation Effects- Nuclide Kinetics & Toxicology- Man- (-1987); 054000 - Nuclear Fuels- Health & Safety

Citation Formats

Campbell, G W, and Anderson, A L. New developments in ultrasonic imaging of the chest and other body organs. [Personnel monitoring for Pu deposited in lungs]. United States: N. p., 1977. Web.
Campbell, G W, & Anderson, A L. New developments in ultrasonic imaging of the chest and other body organs. [Personnel monitoring for Pu deposited in lungs]. United States.
Campbell, G W, and Anderson, A L. 1977. "New developments in ultrasonic imaging of the chest and other body organs. [Personnel monitoring for Pu deposited in lungs]". United States. https://www.osti.gov/servlets/purl/6787272.
@article{osti_6787272,
title = {New developments in ultrasonic imaging of the chest and other body organs. [Personnel monitoring for Pu deposited in lungs]},
author = {Campbell, G W and Anderson, A L},
abstractNote = {The accurate measurement of transuranic elements deposited in the lung is a complex task. One of the problems is measuring uranium-L x-rays associated with plutonium passing through the chest of an accidentally exposed subject. Because the normal human chest-wall thickness varies from about 1 to 4.5 cm, it is important that an accurate determination be made for every person counted for plutonium or for other heavy elements with similar emissions. An ultrasonic B-scanning system (brightness modulated time-base) was developed for defining the structure within the body. Computer programs were written to determine the distance between the lung and chest-wall interface and the outer surface of the chest wall at several points on each scan. These points are exponentially averaged to obtain an average chest-wall thickness that is used, with other information, to derive a calibration factor for plutonium in the subject. It is also combined with the counting data to obtain the plutonium lung burden. Since photon transmission characteristics differ in fat and soft tissue, assessing the fat content is important and can provide a correction factor for counter sensitivity when viewing various organs. The main advantage of the B-scanning and three-dimensional systems are discussed.},
doi = {},
url = {https://www.osti.gov/biblio/6787272}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1977},
month = {11}
}

Conference:
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