Patent · US Active

Non-uniform photon-counting detector array on a fourth-generation ring to achieve uniform noise and spectral performance in Z-direction

US10126254B2 · kind B2 · utility

0Cited by

13References

19Claims

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Assignee

TOSHIBA MEDICAL SYSTEMS CORPORATION · JP

Inventors

Miesher Rodrigues · Buffalo Grove, US
Hao Yang · Sichuan, CN
Liang Cai · Beijing, CN

Key dates

Filing date	Dec 18, 2014
Grant date	Nov 13, 2018
Priority date	—
Expiry date	Mar 17, 2036

Classification

Technology area (CPC G)Physics
CPC primaryG01T1/2985
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A computed tomography (CT) detector apparatus includes a plurality of detector arrays arranged in a ring, wherein for at least one array that includes a plurality of elements, an anode pixel pattern is non-uniform in a z-axis direction and a thickness of each element in the array is correspondingly non-uniform along the z-axis direction. A size of the anode pixels increases proportionally away from a center of the array, and a thickness of the elements increases away from the center of the array. The ratio of the thickness of the element to the size of the anode pixels is substantially the same over the array.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.