System and method for adaptive X-ray cargo inspection
US10459111B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 2015 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | May 23, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2223/639
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An X-ray based inspection systems providing radiographic imaging for cargo inspection and material discrimination with adaptive control dependent upon characteristics of the cargo under inspection. A packet of X-ray pulses with controllable packet duration is produced that allows multi-energy material discrimination in a single scan line and real-time adjustment of packet duration to adapt to cargo attenuation. In addition, adaptive dynamic adjustment of the operational characteristic of the detector channels increases the effective dynamic range and as a result increases the penetration and range of thicknesses where material discrimination is possible. The material discrimination technique is applied within a single packet of short pulses of several hundred nanoseconds. Feedback from the detection system is used to control the packet duration of each packet of X-ray pulses in order to adapt scan parameters to the object that is being imaged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.