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ANSI/ANS-19.10-2009; R2016: Methods for Determining Neutron Fluence in BWR and PWR Pressure Vessel and Reactor Internals

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Item ID: 240278


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"R" in the numeric designation signifies that the 2009 standard was reaffirmed (recertified) as an American National Standard in 2016.  No changes can be made to a standard during reaffirmation.
This standard provides a procedure for the evaluation of the best-estimate fast (E > 1.0 MeV) neutron fluence in the annular region between the core and the inside surface of the vessel, through the pressure vessel and the reactor cavity, between the top and bot-tom of the active fuel given the neutron source in the core. This evaluation employs both fast neutron flux computations and measurement data from in-vessel and cavity dosimetry, as appropriate. The standard applies to both U.S.-designed pressurized water reactors (PWRs) and boiling water reactors (BWRs).

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