In-situ BWR and PWR CRUD flake analysis method and tool
US7304301B1 · kind B1 · utility
5Cited by
10References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2006 |
| Grant date | Dec 4, 2007 |
| Priority date | — |
| Expiry date | Sep 18, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E30/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.