Patent · US Active

Photon counting detector

US9301378B2 · kind B2 · utility

16Cited by

2References

30Claims

0Family size

Assignee

KONINIKLIJKE PHILIPS N.V. · NL

Inventors

Roger Steadman Booker · Aachen, DE
Randall P. Luhta · Highland Heights, US
Christoph Herrmann · Aachen, DE

Key dates

Filing date	Oct 12, 2012
Grant date	Mar 29, 2016
Priority date	—
Expiry date	Apr 10, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG01T7/005
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An imaging system (300) includes a detector array (314) with direct conversion detector pixels that detect radiation traversing an examination region of the imaging system and generate a signal indicative of the detected radiation, a pulse shaper (316) configured to alternatively process the signal indicative of detected radiation generated by the detector array or a set of test pulses having different and known heights that correspond to different and known energy levels and to generate output pulses having heights indicative of the energy of the processed detected radiation or set of test pulses, and a thresholds adjuster (330) configured to analyze the heights of the output pulses corresponding to the set of test pulses in connection with the heights of set of test pulses and a set of predetermined fixed energy thresholds and generate a threshold adjustment signal indicative of a baseline based on a result of the analysis.

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