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Total body calcium analysisA technique to quantitate total body calcium in humans is developed. Total body neutron irradiation is utilized to produce argon 37. The radio argon, which diffuses into the blood stream and is excreted through the lungs, is recovered from the exhaled breath and counted inside a proportional detector. Emphasis is placed on: (1) measurement of the rate of excretion of radio argon following total body neutron irradiation; (2) the development of the radio argon collection, purification, and counting systems; and (3) development of a patient irradiation facility using a 14 MeV neutron generator. Results and applications are discussed in detail.
Document ID
19750008140
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Lewellen, T. K. (Washington Univ. Seattle, WA, United States)
Nelp, W. B. (Washington Univ. Seattle, WA, United States)
Date Acquired
September 3, 2013
Publication Date
November 9, 1974
Subject Category
Aerospace Medicine
Report/Patent Number
NASA-CR-141573
Accession Number
75N16212
Funding Number(s)
CONTRACT_GRANT: NAS9-13029
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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