Method and apparatus for radiation detection
US6236050A · kind A · utility
Inventor
Key dates
| Filing date | Aug 17, 1998 |
| Grant date | May 22, 2001 |
| Priority date | — |
| Expiry date | Aug 17, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/1892
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A detection system is provided. In one embodiment a silicon Compton recoil electron detector uses the Compton double scatter technique with recoil electron tracking to detect medium energy gamma rays from 0.05 to 10 MeV. Two detector layers are required; a silicon microstrip hodoscope and a calorimeter. The incoming photon Compton scatters in the hodoscope. The calorimeter is placed at a location with respect to the hodoscope wherein the calorimeter is effectively shielded from incident emitted x-rays. The second scatter layer is the calorimeter where the scattered gamma ray is totally absorbed. The recoil electron in the hodoscope is tracked through several detector planes until it stops. The x and y position signals from the first two planes of the electron track determine the direction of the recoil electron while the energy loss from all planes determines the energy of the recoil electron. In another embodiment of the invention, the Compton double scatter technique with recoil electron tracking is used to detect x-rays from 300 to 5,000 keV. This embodiment is useful for nondestructive, real time imaging for use in medical imaging and the inspection of munitions items. In anoth…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.