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Field Comparison of the Sampling Efficacy of Two Smear Media: Cotton Fiber and Kraft Paper

Journal Article · · Health Physics
Two materials were compared in field tests at the Defense Waste Processing Facility: kraft paper (a strong, brown paper made from wood pulp prepared with a sodium sulfate solution) and cotton fiber. Based on a sampling of forty-six pairs of smears, the cotton fiber smears provide a greater sensitivity. The cotton fiber smears collected an average of forty-four percent more beta activity than the kraft paper smears and twenty-nine percent more alpha activity. Results show a greater sensitivity with cotton fiber over kraft paper at the 95 percent confidence level. Regulatory requirements for smear materials are vague. The data demonstrate that the difference in sensitivity of smear materials could lead to a large difference in reported results that are subsequently used for meeting shipping regulations or evaluating workplace contamination levels.
Research Organization:
Savannah River Site (US)
Sponsoring Organization:
US Department of Energy (US)
DOE Contract Number:
AC09-96SR18500
OSTI ID:
799298
Report Number(s):
WSRC-MS-99-00669
Journal Information:
Health Physics, Journal Name: Health Physics; ISSN HLTPAO; ISSN 0017-9078
Country of Publication:
United States
Language:
English

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