Radiation detection apparatus and radiation detection method
US9927536B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2014 |
| Grant date | Mar 27, 2018 |
| Priority date | — |
| Expiry date | Apr 16, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2001/444
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A radiation detection apparatus includes a selecting unit that allows a light having a light emission wavelength and a polarization direction to pass thorough the selecting unit, an optical system that forms an image of the light, a photon detecting unit that observes the image formed by the optical system, and detects the photon in whole range of the entire image, a counting unit that calculates the number of the alpha rays based on a result of counting the photons derived from the light emission of gas excited by the alpha rays, whereby it is possible to sufficiently eliminate background light (noise light) even if background light is strong, and therefore observe weak light emission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.