Standard Guide for Establishing Surveillance Test Program for Boron-based Neutron Absorbing Material Systems for Use in Nuclear Fuel Storage Racks in Pool Environment

Importancia y uso:

4.1 The storage of nuclear fuel in high-density storage racks is dependent upon the functionality and integrity of an absorber between the stored fuel assemblies to ensure that the reactivity of the storage configuration does not exceed the K-effective allowed by applicable regulations. A confirmation test may be required to verify the functionality and integrity of the absorber within the racks. If establishing a surveillance program for newly installed or existing absorber material in fuel racks, the following methods are suggested: (a) coupon monitoring program (if coupons are available), (b) in-situ neutron attenuation test, and (c) other applicable in-situ tests such as visual inspection or drag test.

4.2 This guide provides guidance for establishing and conducting a surveillance program for monitoring the ongoing functionality and integrity of the absorbers.

Subcomité:

C26.03

Referida por:

C0992-20A

Volúmen:

12.01

Número ICS:

13.280 (Radiation protection), 27.120.30 (Fissile materials and nuclear fuel technology)

Palabras clave:

boron-based neutron absorbing material systems; coupon monitoring program; high-density fuel storage racks; in-situ tests; irradiation; metal-based; neutron absorber; neutron attenuation; polymer-based; reactivity; service life; surveillance. ;