Detecting explosives or other contraband by employing transmitted and scattered X-rays
US5600700A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 1995 |
| Grant date | Feb 4, 1997 |
| Priority date | — |
| Expiry date | Sep 25, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V5/224
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An X-ray inspection device for detecting a specific material of interest (typically contraband, for example, weapons, drugs, money, explosives) in items of various sizes and shapes includes an X-ray source system located at an inspection region and constructed to expose the examined item to at least one beam of X-ray radiation, one or more x-ray detection systems located at the inspection region and constructed to detect x-ray radiation modified by the examined item. The X-ray inspection device also includes one or more dimension detectors constructed to measure a selected dimension of the examined item, an interface system connected to receive X-ray data and dimension data, and a computer programmed to utilize the data for recognition of the specific material of interest and to indicate its presence in the examined item. The X-ray detection systems detect transmitted and/or scattered X-ray radiation utilizing several different geometries. There may be one or more X-ray back-scatter detection systems, or one or more X-ray forward-scatter detection systems detecting X-ray radiation scattered at different angles from different surfaces of the examined item. Each detection system incl…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.