Document Details

Health Physics Department Report for Quarter Ending August 31, 1947
Subject Terms:
C-14, beta, isotope; Victoreen 352, pocket meter; White Oak Basin, Clinch River; health physics, ORNL, report; lithium, boron, emulsions; phantoms, neutrons; plutonium, radioactive wastes; research and development; uranium, quarterly report
Document Location:
DOE INFORMATION CENTER 1 Way, Oak Ridge, TN 37831; Eva Butler; Phone: 865-241-4780; Toll-Free: 800-382-6938, Option 6; FAX: 865-574-3521; Email:
Document Categories:
Health, Safety and Environment\Waste Management
Document Type:
Publication Date:
1947 Sep 01
Declassification Date:
1953 Jun 25
Declassification Status:
Document Pages:
Accession Number:
Document Number(s):
MonH-381, Copy 3A
Originating Research Org.:
Clinton Laboratories
OpenNet Entry Date:
1998 Jun 16
This document concerns the Health Physics Department Report for the period ending August 31, 1947. During the past quarter this department continued to fall short of scheduled progress in the development of adequate facilities, staff, and program and was most pronounced in the Research and Development Section. Demands from outside Clinton Laboratories were particularly heavy adding to the difficulties of covering local demands. Survey and monitoring methods for C-14 were investigated. A study was being done of the use of phantoms to simulate the physical interaction of tissue with gamma radiation. A study was continued of the Eastman Fine Grain Particle Emulsion as an instrument for fast and slow neutron monitoring. Some consideration was given to the suitability of lithium and boron emulsions for the monitoring of slow neutrons. Work continued on the development of a practical procedure for the routine determination of uranium in urine. A manually controlled potentiometer and electrometer for standard air chamber measurements was being designed and constructed. While using lithium-impregnated photographic emulsions for another purpose, it was found that the Li-6 (n,2) and the B-10 (n,2) reactions provide two greatly improved methods of a slow-neutron health monitoring. A survey of the activity of the mud in parts of White Oak Basin, June 26, 1947, indicated increases in the specific activity of the mud of factors ranging from 5 to 15 during the preceding five months. A radioactive survey of the Clinch and Emory Rivers within a radius of several miles of the town of Harriman was also made. Observations were made of the dependence of airborne activity upon temperature inversion and wind conditions, and it was suggested that more complete temperature data might indicate some inversion beyond the range of the elevations used and also was suggested that the rate of decay of activity on the filter papers after the end of an inversion period indicated activity is largely due to 110 minute argon. The new Victoreen 352 meter replaced the former Victoreen pocket meter used for personnel monitoring at Clinton Laboratories.

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