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ANS 8.6 83rd Edition, January 1, 1983
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Safety in conducting subcritical neutron-multiplication measurements in situ
Includes all amendments and changes through Reaffirmation Notice , November 16, 2010
Page Count:12
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This standard provides safety guidance for conducting subcritical neutron-multiplication measurements where physical protection of personnel against the  consequences of a criticality accident is not provided. The objectives of in situ measurements are either to confirm an adequate safety margin or to improve an estimate of such a margin. The first objective may constitute a test of the criticality safety of a design that is based on calculations. The second may effect improved operating conditions by reducing the uncertainty of safety margins and providing guidance to new designs.