发明名称 |
X-ray sensor signal processor and x-ray computed tomography system using the same |
摘要 |
An X-ray sensor signal processor including capacitors 114 for removing DC components (dark currents) from output signals of semiconductor sensors 21 to 2n detecting pulse-like X-rays passed through an object, and integrators (each of which is constituted by a combination of an operational amplifier 115, a resistor 116 and a capacitor 117) for integrating the output signals of the X-ray sensors after removal of the DC components by the capacitors 114. By this, a value proportional to the average number of photons in X-rays can be obtained even in the case where a small number of incident photons are given, and an X-ray CT system using the X-ray sensor signal processor.
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申请公布号 |
US2002154729(A1) |
申请公布日期 |
2002.10.24 |
申请号 |
US20020067914 |
申请日期 |
2002.02.08 |
申请人 |
KAMIMURA HIROSHI;IZUMI SHIGERU;KITAGUCHI HIROSHI;YAMAGOSHI ATSUSHI;SATOH KATSUTOSHI;SADAOKA NORIYUKI;TAKAGI TAROU;KUWABARA KOUJI;NUMATA SHOUHEI |
发明人 |
KAMIMURA HIROSHI;IZUMI SHIGERU;KITAGUCHI HIROSHI;YAMAGOSHI ATSUSHI;SATOH KATSUTOSHI;SADAOKA NORIYUKI;TAKAGI TAROU;KUWABARA KOUJI;NUMATA SHOUHEI |
分类号 |
G01N23/04;(IPC1-7):G21K1/12;H05G1/60;A61B6/00;G01N23/00 |
主分类号 |
G01N23/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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