Nuclear radiation-warning detector that measures impedance
US8456313B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Dec 24, 2009 |
| Grant date | Jun 4, 2013 |
| Priority date | — |
| Expiry date | Sep 12, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B21/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This invention is a nuclear radiation-warning detector that measures impedance of silver-silver halide on an interdigitated electrode to detect light or radiation comprised of alpha particles, beta particles, gamma rays, X rays, and/or neutrons. The detector is comprised of an interdigitated electrode covered by a layer of silver halide. After exposure to alpha particles, beta particles, X rays, gamma rays, neutron radiation, or light, the silver halide is reduced to silver in the presence of a reducing solution. The change from the high electrical resistance (impedance) of silver halide to the low resistance of silver provides the radiation warning that detected radiation levels exceed a predetermined radiation dose threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.