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ASTM-E482 2022

ASTM-E482 2022

$34.13

E482-22 Standard Guide for Application of Neutron Transport Methods for Reactor Vessel Surveillance

Published By Publication Date Number of Pages
ASTM 2022 5
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ASTM E482-22

Active Standard: Standard Guide for Application of Neutron Transport Methods for Reactor Vessel Surveillance

ASTM E482

Scope

1.1 Need for Neutronics Calculations—An accurate calculation of the neutron fluence and fluence rate at several locations is essential for the analysis of integral dosimetry measurements and for predicting irradiation damage exposure parameter values in the pressure vessel. Exposure parameter values may be obtained directly from calculations or indirectly from calculations that are adjusted with dosimetry measurements; Guide E944 and Practice E853 define appropriate computational procedures.

1.2 Methodology—Neutronics calculations for application to reactor vessel surveillance encompass three essential areas: (1) validation of methods by comparison of calculations with dosimetry measurements in a benchmark experiment, (2) determination of the neutron source distribution in the reactor core, and (3) calculation of neutron fluence rate at the surveillance position and in the pressure vessel.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Keywords

discrete ordinates; dosimetry; exposure parameter; Monte Carlo; neutron fluence; pressure vessel; radiation transport;

ICS Code

ICS Number Code 27.120.20 (Nuclear power plants. Safety)

DOI: 10.1520/E0482-22

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ASTM-E482 2022
$34.13