Integrated neutron-gamma radiation detector with adaptively selected gamma threshold
US7626178B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2007 |
| Grant date | Dec 1, 2009 |
| Priority date | — |
| Expiry date | Jun 4, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T1/17
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An integrated radiation detector having a pulse-mode operating photosensor optically coupled to a gamma sensing element and a neutron sensing element is disclosed. The detector includes pulse shape and processing electronics package that uses an analog to digital converter (ADC) and a charge to digital converter (QDC) to determine scintillation decay times and classify radiation interactions by radiation type. The pulse shape and processing electronics package determines a maximum gamma energy from the spectrum associated with gamma rays detected by the gamma sensing element to adaptively select a gamma threshold for the neutron sensing element. A light pulse attributed to the neutron sensing element is a valid neutron event when the amplitude of the light pulse is above the gamma threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.