Apparatus and method for detection of radiation
US7391028B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 28, 2006 |
| Grant date | Jun 24, 2008 |
| Priority date | — |
| Expiry date | Mar 29, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T7/00
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Digital images or the charge from pixels in light sensitive semiconductor based imagers may be used to detect gamma rays and energetic particles emitted by radioactive materials. Methods may be used to identify pixel-scale artifacts introduced into digital images and video images by high energy gamma rays. Statistical tests and other comparisons on the artifacts in the images or pixels may be used to prevent false-positive detection of gamma rays. The sensitivity of the system may be used to detect radiological material at distances in excess of 50 meters. Advanced processing techniques allow for gradient searches to more accurately determine the source's location, while other acts may be used to identify the specific isotope. Coordination of different imagers and network alerts permit the system to separate non-radioactive objects from radioactive objects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.