Scintillation Detection Device with Pressure Sensitive Adhesive Interfaces
US-2015362600-A1 · Dec 17, 2015 · US
Integrated digital discriminator for a silicon photomultiplier
US9217795B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9217795-B2 |
| Application number | US-201213556331-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 24, 2012 |
| Priority date | Jul 24, 2012 |
| Publication date | Dec 22, 2015 |
| Grant date | Dec 22, 2015 |
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Abstract
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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.
First claim
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We claim: 1. A method comprising: striking a first microcell, wherein said first microcell is in a primary pixel and said primary pixel is in a block; counting, after a first time frame, microcells struck in said primary pixel and secondary pixels associated with said primary pixel; comparing said count to a threshold to determine whether a gamma-event has occurred; and generating a time-mask for said first microcell when a gamma-event has occurred.…
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- What does patent US9217795B2 cover?
- 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 seco…
- Who is the assignee on this patent?
- Hansen Peter, Casey Michael E, Siegel Stefan B, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification G01T1/248. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Dec 22 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).