Method and device for the identification of leakiness in a neutron-capturing pencil of a nuclear reactor
US5028380A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 1989 |
| Grant date | Jul 2, 1991 |
| Priority date | — |
| Expiry date | Jul 6, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E30/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed are a method and device for the identification of the leakiness of a neutron-capturing pencil, or control rod, of a nuclear reactor. The pencil is placed in an impervious chamber filled with an aggressive chemical solution. The solution is put under pressure in order to make it penetrate the defective pencil, then this pressure is relaxed in order to enable the solution to go out of the presumably defective pencil in the impervious chamber. The solution is analyzed in order to show up metallic salts of the constituent elements of the core of the pencil. Application is to routine checks on neutron-capturing pencils of a pressurized-water nuclear reactor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.