Patent · US Active

Apparatus and method for generating countable pulses from impinging X-ray photons; and corresponding imaging device

US8350221B2 · kind B2 · utility

12Cited by

7References

16Claims

0Family size

Assignee

KONINKLIJKE PHILIPS ELECTRONICS NV · NL

Inventors

Roger Steadman Booker · Aachen, DE
Christian Baeumer · Hergenrath, BE
Christoph Herrmann · Aachen, DE
Guenter Zeitler · Aachen, DE
Hans Krüger · Bonn, DE
Walter Ruetten · Linnich, DE
Oliver Muelhens · Aachen, DE

Key dates

Filing date	Jul 24, 2008
Grant date	Jan 8, 2013
Priority date	—
Expiry date	Jun 13, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH04N25/773
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

The present invention relates to an apparatus (10) for generating countable pulses (30) from impinging X-ray (12, 14) in an imaging device (16), in particular in a computer tomograph, the apparatus (10) comprising a pre-amplifying element (18) adapted to convert a charge pulse (20) generated by an impinging photon (12, 14) into an electrical signal (22) and a shaping element (26) having a feedback loop (28) and adapted to convert the electrical signal (22) into an electrical pulse (30), wherein a delay circuit (38) is connected to the feedback loop (28) such that a time during which the feedback loop (28) collects charges of the electrical signal (22) is extended in order to improve an amplitude of the electrical pulse (30) at an output (56) of the shaping element (26). The invention also relates to a corresponding imaging device (16) and a corresponding method.

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