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

2007-10-18

2011-12-06

Guidotti, Laura C (Department: 3727)

Brushing, scrubbing, and general cleaning

Implements

Pipe, tube, or conduit cleaner

C015S236070, C015S104001, C376S310000

Reexamination Certificate

active

08069522

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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PCT International Search Report and Written Opinion from PCT/US05/12998, mailed on Dec. 10, 2007.

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