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US08350221B2 Apparatus and method for generating countable pulses from impinging X-ray photons; and corresponding imaging device 有权
用于产生来自冲击X射线光子的可计数脉冲的装置和方法; 和相应的成像装置

Apparatus and method for generating countable pulses from impinging X-ray photons; and corresponding imaging device
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.
Abstract(Chinese):

本发明涉及一种用于在成像装置（16）中产生可冲击的脉冲（30）的设备（10），特别是在计算机断层摄影装置中，该装置（10）包括一个预先 适于将由入射光子（12,14）产生的电荷脉冲（20）转换成电信号（22）的放大元件（18）和具有反馈回路（28）并适于转换的成形元件（26） 电信号（22）转换成电脉冲（30），其中延迟电路（38）连接到反馈回路（28），使得反馈回路（28）收集电信号（22）的电荷 ）被扩展以便改善成形元件（26）的输出端（56）处的电脉冲（30）的振幅。 本发明还涉及相应的成像装置（16）和相应的方法。

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