Gamma-ray spectrometry
US9535177B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 20, 2013 |
| Grant date | Jan 3, 2017 |
| Priority date | — |
| Expiry date | Jun 20, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T1/40
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A calibration source for a gamma-ray spectrometer is provided, comprising a scintillator body having a cavity in which a radioactive material is received. A scintillator body may be cuboid and the cavity may be a hole drilled into the scintillator body. The radioactive material comprises an isotope having a decay transition associated with emission of a radiation particle and a gamma-ray of known energy. A photodetector is optically coupled to the scintillator body and arranged to detect scintillation photons generated when radiation particles emitted from the radioactive material interact with the surrounding scintillator. A gating circuit is arranged to receive detection signals to generate corresponding gating signals for a data acquisition circuit of an associated gamma-ray spectrometer to indicate that gamma-ray detections in the gamma-ray spectrometer occurring within a time window defined by the gating signal are associated with a decay transition in the radioactive isotope.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.