ANS Publishes Revised Standard on Reload Startup Physics Tests for Pressurized Water Reactors (ANS-19.6.1)

摘要

The American Nuclear Society (ANS) Standards Committee has just published ANSI/ANS-19.6.1-2019, "Reload Startup Physics Tests for Pressurized Water Reactors" (revision of ANS-19.6.1-2011). The standard, approved December 19, 2019, provides guidance for verifying the nuclear characteristics of a commercial pressurized water reactor core. The standard covers the physics tests that are performed following a refueling or other alteration of the reactor core for which nuclear design calculations are required and provides the minimum acceptable startup physics test program while recognizing that additional tests may be required by special design features for a particular core. The standard does not reflect all test programs that have been approved by the U.S. Nuclear Regulatory Commission.