Back-scattering inspection systems and methods for human body
US9295441B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 23, 2013 |
| Grant date | Mar 29, 2016 |
| Priority date | — |
| Expiry date | Feb 12, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V5/222
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Human body back-scattering inspection systems and methods are disclosed. In the invention, X-rays modulated by the flying-spot forming unit having spirally distributed flying-spots have a distribution having alternating peaks and valleys on the irradiated surface. In this way, scanning starting times can be precisely controlled to cause two devices to have scanning starting times that are different by a half of a cycle. That is, the beams outputted from one device are at maximum when the beams outputted from the other device are at minimum. In other words, even if the ray source of one device emits rays, it will not significantly affect imaging result of the other device. In such way, the two devices may emit rays and perform scanning at the same time, and thus the total scanning time is reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.