Gadolinium-doped water cerenkov-based neutron and high energy gamma-ray detector and radiation portal monitoring system
US8373133B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 20, 2010 |
| Grant date | Feb 12, 2013 |
| Priority date | — |
| Expiry date | Sep 21, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T3/008
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A water Cerenkov-based neutron and high energy gamma ray detector and radiation portal monitoring system using water doped with a Gadolinium (Gd)-based compound as the Cerenkov radiator. An optically opaque enclosure is provided surrounding a detection chamber filled with the Cerenkov radiator, and photomultipliers are optically connected to the detect Cerenkov radiation generated by the Cerenkov radiator from incident high energy gamma rays or gamma rays induced by neutron capture on the Gd of incident neutrons from a fission source. The PMT signals are then used to determine time correlations indicative of neutron multiplicity events characteristic of a fission source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.