Gamma-ray detector
US8319188B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2007 |
| Grant date | Nov 27, 2012 |
| Priority date | — |
| Expiry date | Nov 16, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T7/00
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A portable gamma-ray detector for indicating the intensity of a source of gamma-rays, the nature of the source, and the direction to the source relative to an axis of the detector. The detector comprises a plurality of scintillation bodies arranged around the pointing axis, for example four scintillation bodies in a two-by-two array and separated from each other by aluminum foil. Thus gamma-rays from different directions are shielded from different ones of the scintillation bodies by the other scintillation bodies. The scintillation bodies are coupled to respective photo-detectors and a processing circuit is configured to receive output signals from the photo-detectors and to provide an indication of the direction to a source relative to the pointing axis of the detector based on the relative output signals from the different photo-detectors. The processing circuit is further operable to determine the intensity of the source from the magnitudes of the output signals, and the nature of the source from a spectral analysis of the output signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.