Three dimensional radiation detector
US7208740B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 2006 |
| Grant date | Apr 24, 2007 |
| Priority date | — |
| Expiry date | May 9, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T1/202
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A pixelated detector assembly comprising a stack of thin detector crystals, each detector crystal having a pair of planar surfaces bound by edges substantially thinner than the dimensions of the surfaces. The stack is disposed such that the radiation to be detected is incident on one set of edges of the stack of detector crystals. The dimension of the planar surfaces in the general direction of incidence of the radiation incidence is sufficient to ensure that substantially all of the high energy photons to be detected are absorbed within the depth of the detector assembly. Each of the detector crystals has a two-dimensional pixelated anode array formed on one of its planar surfaces. A cathode is formed on its opposite planar surface, preferably covering substantially all of the surface. The position of interaction of a photon in the plane perpendicular to the direction of the incident radiation, is determined by which of the detector crystals in the stack detects the absorption, and by which of the rows of pixelated anodes in that crystal detects the absorption. The depth of interaction of a photon is determined by the location of the particular anode pixel in the above-mentioned r…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.