In-situ BWR and PWR CRUD flake analysis method and tool

Details In-situ BWR and PWR CRUD flake analysis method and tool In-situ BWR and PWR CRUD flake analysis method and tool

2006-11-07

2006-11-07

Berman, Jack I. (Department: 2881)

Radiant energy

Inspection of solids or liquids by charged particles

Methods

Reexamination Certificate

active

07132651

ABSTRACT:
The invention provides a method and tool to perform an analysis of CRUD on a nuclear fuel rod. The method recites providing a nuclear fuel rod with a layer of CRUD on an exterior of the fuel rod, scraping the CRUD from the fuel rod with a CRUD scraping tool and collecting CRUD flakes from the CRUD scraping tool. The method also provides for sorting the CRUD flakes into particle fractions, and analyzing the CRUD with a scanning electron microscope, wherein the scraping tool has a blade with a rigidity that is matched to an anticipated CRUD deposit shear strength.

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