Method and apparatus to use a broad-spectrum energy source to correct a nonlinear energy response of a gamma-ray detector
US11255985B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 9, 2020 |
| Grant date | Feb 22, 2022 |
| Priority date | — |
| Expiry date | Apr 17, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T7/005
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method and apparatus are provided for positron emission imaging to calibrate energy measurements of a pixilated gamma-ray detector using energy calibration based on a calibration with a distribution energy signature (i.e., having more spectral features than just a single full-energy peak). The energy calibration can be performed using a deep learning (DL) network or a physics-based model. Using the DL network, a calibration spectrum is applied to either generate the measured-signal values of known energy values (e.g., spectral peaks for spectra of various radioactive isotopes) or the parameters of an energy-calibration function/model.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.