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ANSI/ANS-19.3-2011; R2017: Steady-State Neutronics Methods for Power Reactor Analysis

Current Standard, Revision of ANSI/ANS-19.3-2005

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Item ID: 240286


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"R" in the numeric designation signifies that the 2011 standard was reaffirmed (recertified) as an American National Standard in 2017.  No changes can be made to a standard during reaffirmation.
This standard provides guidance for performing and validating the sequence of steady-state calculations leading to prediction, in all types of operating commercial nuclear reactors, of 1) reaction-rate spatial distributions, 2) reactivity, and 3) change of nuclide compositions with time. The standard provides 1) guidance for the selection of computational methods, 2) criteria for verification and validation of calculation methods used by reactor core analysts, 3) criteria for evaluation of accuracy and range of applicability of data and methods, and 4) requirements for documentation of the preceding.

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