Integrated digital discriminator for a silicon photomultiplier
US9217795B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2012 |
| Grant date | Dec 22, 2015 |
| Priority date | — |
| Expiry date | Jun 21, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2005/00078
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Apparatuses and methods are provided that minimize the effects of dark-current pulses. For example, in one embodiment of the invention, a method is provided where a first pixel is struck (i.e., a primary pixel). Pixels struck within a fixed time frame after the primary pixel is struck are referred to as secondary pixels. After a short fixed time frame has expired, the number of primary and secondary pixels is added. If the count exceeds a threshold, the primary pixel was activated by the first (or early) photon from a true gamma event. If the threshold is not met then it is likely the primary pixel generated a dark pulse that should be ignored.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.