This report provides a justification for shielding plutonium sources when testing radiation detection instruments against standard performance requirements and test methods. The use of copper as a shielding material is proposed to provide comparable test results when testing radiation detection instruments in different location using different plutonium sources with varying 241Am content.
Citation: Technical Note (NIST TN) - 1758Report Number:
NIST Pub Series: Technical Note (NIST TN)
Pub Type: NIST Pubs
Am-241 content, copper shielding, Plutonium sources, standards testing