Gamma camera system for imaging contamination
US5591976A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 1994 |
| Grant date | Jan 7, 1997 |
| Priority date | — |
| Expiry date | Sep 26, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T1/2018
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A system for detecting and imaging gamma radiation emitted by a contaminated area includes a plurality of collimators spaced a distance apart from each other. The collimators have a plurality of holes therethrough and the holes of one collimator are aligned with the holes in another collimator for forming a plurality of hole alignments which permit gamma rays to pass through the collimators. A scintillator and operatively connected avalanche photodiode are provided with each aligned hole of the collimators for determining the position of the gamma ray which passes through the collimators. A video camera records a visual image of the contaminated area and a monitor displays the video image along with location and size information provided by the avalanche photodiodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.