Radiation detector with optical waveguide and neutron scintillating material
US8314399B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 2010 |
| Grant date | Nov 20, 2012 |
| Priority date | — |
| Expiry date | May 2, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T3/06
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A radiation detector includes a neutron sensing element comprising a neutron scintillating composite material that emits a first photon having a first wavelength and an optical waveguide material having a wavelength-shifting dopant dispersed therein that absorbs the first photon emitted by the neutron scintillating composite material and emits a second photon having a second, different wavelength, and a functionalized reflective layer at an interface between the neutron scintillating composite material and the optical waveguide material. The functionalized reflective layer allows the first photon emitted by the neutron scintillating composite material to pass through and into the optical waveguide material, but prevents the second photon emitted by the optical waveguide material from passing through and into the neutron scintillating composite material. The photons emitted from the neutron sensing element are collected and channeled through the optical waveguide material and into a photosensing element optically coupled to the neutron sensing element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.