Stabilization in gamma-ray spectometry
US8384016B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 28, 2009 |
| Grant date | Feb 26, 2013 |
| Priority date | — |
| Expiry date | Jul 28, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T1/40
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A calibration source comprises a radioactive material comprising a radioactive isotope having a decay transition associated with emission of a radiation particle and gamma-rays having a known energy and a solid-state detector, arranged to receive radiation particles emitted from the radioactive material. A gating circuit is coupled to the solid-state detector and is operable to generate a gating signal in response to detection of a radiation particle in the solid-state detector. The gating signal may thus be used as an indicator that an energy deposit in a nearby gamma-ray spectrometer is associated with a decay transitions in the radioactive isotope. Since these energy deposits are of a known energy, they can be used as reference points to calibrate the spectrometer response. Thus with calibration sources according to embodiments of the invention, spectral stabilization may be performed in real time and in parallel with obtaining a spectrum of observed signal events.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.