Document Details


Title:
Health Physics Division Report for Quarter Ending November 30, 1947
Subject Terms:
calcium oxalate, Clinch River; division report; gamma radiation; health physics, ORNL; radioactive, plutonium; study, waste disposal; Clinton Laboratories
Document Location:
DOE INFORMATION CENTER 1 Science.gov Way, Oak Ridge, TN 37831; Eva Butler; Phone: 865-241-4780; Toll-Free: 800-382-6938, Option 6; FAX: 865-574-3521; Email: doeic@oro.doe.gov
Document Categories:
Health, Safety and Environment\Worker Health and Safety; Specific Material\Plutonium
Document Type:
REPORT
Publication Date:
1947 Dec 01
Declassification Date:
1956 Nov 29
Declassification Status:
Declassified
Document Pages:
19
Accession Number:
ORF65918
Document Number(s):
MonH-446; MonH-446, TID-1116; Copy 3; MonH446TID1116; Copy3
Originating Research Org.:
Clinton Laboratories
OpenNet Entry Date:
1998 Jun 16
Description/Abstract:
During the past quarter several organizational changes were made in this division to better integrate activities and make it possible to meet the increased local and outside demands for Health Physics services. The construction of a new low-background type alpha counter was completed. A study was made of the variation of sensitivity of six new cutie-pies produced in the Clinton Laboratories' Instrument Shop, and the ratio of the resistances appeared to be correct to within ten percent. The effect of inserting a glass backed neutron emulsion into the film meter was investigated, and the conclusion was that 1 mm thickness of glass in the film meter changed the response to gamma radiation sufficiently to make the use of glass inadvisable. It was requested that an estimate be made of the amount of scattered radiation to be expected outside the exposure cage being built at Y-12 and found that it comprised less than 10 percent of the expected total. A survey of waterborne activity flowing into the Clinch River showed a reduction in gamma radiation for the quarter which was accomplished by dilution, radioactive decay, and removal. The program of urinalysis for plutonium is now being carried out on a routine basis, and the calcium oxalate procedure is being used to isolate plutonium from urine samples. Sixty-nine analyses for plutonium were made on urine of 63 persons exposed to plutonium, and none of the analyses indicated a body content in excess of 0.02 micrograms. There are, on the average, 40 isotopes shippped from the 105 Building each month. The most outstanding radiation protection event in the 200 Area during the period was the work done on the 706-D off-gas system. A change, which called for a hold-up of the waste sulfur in a tank vented to the off-gas system to allow fumes and vapors to pass off before the sulfur was drawn off to be discarded, removed the great danger of excessive air contamination. Twenty-four loads of alpha contaminated waste from Dayton were buried during this period. A six weeks' concentrated orientation program for Health Physics Radiation Surveyors has just been completed. A graph and appendixes are included in this report.


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