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1. 发明授权

US5099127A Portable intensitometer and apparatus for centralized control of exposure using the intensitometer 失效
标题翻译：便携式强度测定仪和使用强度测量仪进行集中控制接触的装置
公开(公告)号：US5099127A
公开(公告)日：1992-03-24
申请号：US274998
申请日：1988-09-30
申请人： Hiroshi Kitaguchi , Shigeru Izumi , Satoshi Suzuki , Satoru Kawasaki , Masahiro Kondo , Shinji Mitani , Tatsuo Hayashi , Yukito Koiwa
发明人： Hiroshi Kitaguchi , Shigeru Izumi , Satoshi Suzuki , Satoru Kawasaki , Masahiro Kondo , Shinji Mitani , Tatsuo Hayashi , Yukito Koiwa
IPC分类号： G01T1/00 , G01T1/02 , G21C17/00
CPC分类号： G01T1/02 , G01T1/026
摘要： A portable intensitometer including a radioactive radiation detector, an operation processing device for digitally processing the output signal of the radioactive radiation detector, and a device which produces a processed result of the operation processing device, wherein the improvement further includes a device for storing the data of exposure history and exposure control values of an individual person, and an interface which is connected to the storage device and to said operation processing device to input or output the data relative to an external equipment. The operation processing device carries out exposure control calculation for an individual person relying upon the output signals from the radioactive radiation detector and upon the read signals from the storage device. Therefore, the daily control, weekly control and monthly control are carried out in real time for each of the individual persons, to realize perfect exposure control for the individual persons.

2. 发明授权

US5640462A Imaging method of X-ray computerized tomography and apparatus for X-ray computerized tomography 失效
标题翻译： X线计算机断层扫描成像方法及X线计算机断层扫描仪器
公开(公告)号：US5640462A
公开(公告)日：1997-06-17
申请号：US945903
申请日：1992-09-17
申请人： Katsutoshi Sato , Shigeru Izumi , Shoji Kamata , Hiroshi Miyai , Hiroshi Kitaguchi , Masahiro Kondo , Seishi Watahiki
发明人： Katsutoshi Sato , Shigeru Izumi , Shoji Kamata , Hiroshi Miyai , Hiroshi Kitaguchi , Masahiro Kondo , Seishi Watahiki
IPC分类号： A61B6/03 , G01N23/04 , G06Q50/22 , G06Q50/24 , G06T1/00 , G06T11/00 , G06K9/00
CPC分类号： G01N23/046 , G06T11/001 , G01N2223/419
摘要： An imaging method of an X-ray computerized tomography (X-ray CT) comprising the steps of reconstructing a partial region including a region of interest from penetrating data of an object, extracting only shape information from the reconstructed image, setting a threshold function determined by resolution to the reconstructed image information which is equivalent to linear absorption coefficient distribution (density), extracting the reconstructed image information by making the information into bi-values or tri-values based on the threshold function or by differentiating the information, and extracting and imaging only a portion where the linear absorption coefficient distribution (density) changes stepwise.
摘要翻译：一种X射线计算机断层摄影（X射线CT）的成像方法，包括以下步骤：从穿透对象的数据重建包含感兴趣区域的部分区域，仅从重构图像中提取形状信息，设定阈值函数通过分辨率等于线性吸收系数分布（密度）的重建图像信息，通过基于阈值函数将信息形成为双值或三值来提取重建图像信息，或者通过对信息进行微分，并提取和仅成像线性吸收系数分布（密度）逐步变化的部分。

3. 发明授权

US4777367A Method and apparatus for measuring the distribution of radioactivity 失效
标题翻译：用于测量放射性分布的方法和装置
公开(公告)号：US4777367A
公开(公告)日：1988-10-11
申请号：US836426
申请日：1986-03-05
申请人： Satoru Kawasaki , Masaharu Sakagami , Hiroshi Kitaguchi , Masahiro Kondo
发明人： Satoru Kawasaki , Masaharu Sakagami , Hiroshi Kitaguchi , Masahiro Kondo
IPC分类号： G01N23/04 , G01T1/167 , G01T1/29
CPC分类号： G01T1/167 , G01T1/2964
摘要： A .gamma. ray emitted from a reference radioactive ray source is radiated from outside to a solid radioactive waste. The radioactive intensity of the .gamma. ray emitted from the solid radioactive waste is measured during the radiation of the .gamma. ray. The radioactive intensity to be measured is discriminated into the first radiation intensity based on the reference radioactive ray source and the second radiation intensity based on the radioactive nuclide of the solid radioactive waste. A radiation absorption coefficient of the solid radioactive waste is determined based on the first radiation intensity. The distribution of radioactivity of the solid radioactive waste is determined based on the radiation absorption coefficient and the second radiation intensity.
摘要翻译：从参考放射线源发射的伽马射线从外部辐射到固体放射性废物。在伽马射线辐射期间测量从固体放射性废物发射的γ射线的放射性强度。将被测量的放射性强度基于参考放射线源和基于固体放射性废物的放射性核素的第二辐射强度来区分为第一辐射强度。基于第一辐射强度确定固体放射性废物的辐射吸收系数。固体放射性废物的放射性分布根据辐射吸收系数和第二辐射强度来确定。

4. 发明授权

US4879466A Semiconductor radiation detector 失效
标题翻译：半导体辐射探测器
公开(公告)号：US4879466A
公开(公告)日：1989-11-07
申请号：US150205
申请日：1988-01-29
申请人： Hiroshi Kitaguchi , Shigeru Izumi , Satoshi Suzuki
发明人： Hiroshi Kitaguchi , Shigeru Izumi , Satoshi Suzuki
IPC分类号： H01L31/09 , G01T1/24 , G01T1/29 , H01L31/115 , H01L31/118
CPC分类号： H01L31/1185 , G01T1/2928 , H01L31/115
摘要： A structure of semiconductor radiation detector element having a p-n junction comprises a substrate layer including a radiation absorbing layer having a silicon equivalent thickness not smaller than 140 .mu.m and located adjacent to a depletion layer formed at the p-n junction. With the simplified structure, both the detection sensitivity and the energy compensating performance are enhanced significantly.

5. 发明授权

US06975700B2 X-ray sensor signal processor and X-ray computed tomography system using the same 有权
标题翻译： X射线传感器信号处理器和X射线计算机断层摄影系统使用相同
公开(公告)号：US06975700B2
公开(公告)日：2005-12-13
申请号：US10864641
申请日：2004-06-10
申请人： Hiroshi Kamimura , Shigeru Izumi , Hiroshi Kitaguchi , Atsushi Yamagoshi , Katsutoshi Satoh , Noriyuki Sadaoka , Tarou Takagi , Kouji Kuwabara , Shouhei Numata
发明人： Hiroshi Kamimura , Shigeru Izumi , Hiroshi Kitaguchi , Atsushi Yamagoshi , Katsutoshi Satoh , Noriyuki Sadaoka , Tarou Takagi , Kouji Kuwabara , Shouhei Numata
IPC分类号： G01N23/04 , A61B6/03
CPC分类号： H04N5/32 , G01N23/046 , G01N2223/419 , G06F19/00 , G06Q50/22 , G06Q50/24 , H04N5/361 , Y10S378/901
摘要： An X-ray CT apparatus having X-ray irradiator for irradiating an X-ray to an object to be inspected, an X-ray sensor for detecting an X-ray passed through the object to be inspected, an X-ray sensor signal processing circuit for processing an output signal from the X-ray sensor, and a CT control apparatus for reconstructing an image of the object to be inspected on the basis of an output signal of the X-ray sensor processed by the X-ray sensor signal processing circuit. The X-ray sensor signal processing circuit includes a filter for removing a DC component from the output signal of the X-ray sensor, and an integration circuit for integrating the output signal of the X-ray sensor from which the DC component is removed by the filter.
摘要翻译：一种X射线CT装置，具有用于将X射线照射到待检查对象的X射线照射器，用于检测通过被检查物体的X射线的X射线传感器，X射线传感器信号处理用于处理来自X射线传感器的输出信号的电路，以及CT控制装置，用于根据通过X射线传感器信号处理处理的X射线传感器的输出信号重建被检查物体的图像电路。 X射线传感器信号处理电路包括用于从X射线传感器的输出信号中去除DC分量的滤波器，以及积分电路，用于对从其中除去DC分量的X射线传感器的输出信号进行积分，过滤器。

6. 再颁专利

USRE35908E Neutron individual dose meter neutron dose rate meter, neutron detector and its method of manufacture 失效
标题翻译：中子单剂量计中子剂量率计，中子探测器及其制造方法
公开(公告)号：USRE35908E
公开(公告)日：1998-09-29
申请号：US662229
申请日：1996-06-14
申请人： Hiroshi Kitaguchi , Shigeru Izumi , Akihasa Kaihara
发明人： Hiroshi Kitaguchi , Shigeru Izumi , Akihasa Kaihara
IPC分类号： G01T1/02 , G01T3/00 , G01T3/08 , H01L31/00 , H01L31/115
CPC分类号： G01T3/08 , G01T1/026
摘要： A neutron individual dose meter and a neutron dose rate meter, both capable of implementing the effective dose equivalent response. The neutron individual dose meter is capable of being accomplished by providing a composite layer made up of a converter such as boron, and a proton radiator, on the surface of a semiconductor neutron detection element. The neutron dose rate meter is capable of being accomplished through such a structure as to surround a neutron detector with a neutron moderator and a thermal neutron absorber which has openings. Thus, a neutron individual dose meter and a neutron dose rate meter, both capable of implementing the effective dose equivalent response and measurement at lower operating voltage have been provided. Further, these meters are capable of being implemented by utilizing a single semiconductor detection element, respectively.
摘要翻译： PCT No.PCT / JP91 / 00574 Sec。 371日期1991年12月27日 102（e）日期1991年12月27日PCT 1991年4月26日PCT PCT。公开号WO91 / 17462 日期1991年11月4日中子单个剂量计和中子剂量率计，均能实现有效剂量当量反应。中子单个剂量计能够通过在半导体中子检测元件的表面上提供由诸如硼的转换器和质子辐射器构成的复合层来实现。中子剂量率计能够通过这样一种结构来实现，即用中子减速剂和具有开口的热中子吸收体包围中子检测器。因此，提供了能够在较低工作电压下实现有效剂量当量响应和测量的中子单个剂量计和中子剂量率计。此外，这些仪表能够分别通过利用单个半导体检测元件来实现。

7. 发明授权

US07113563B2 X-ray sensor signal processor and X-ray computed tomography system using the same 有权
标题翻译： X射线传感器信号处理器和X射线计算机断层摄影系统使用相同
公开(公告)号：US07113563B2
公开(公告)日：2006-09-26
申请号：US11250484
申请日：2005-10-17
申请人： Hiroshi Kamimura , Shigeru Izumi , Hiroshi Kitaguchi , Atsushi Yamagoshi , Katsutoshi Satoh , Noriyuki Sadaoka , Tarou Takagi , Kouji Kuwabara , Shouhei Numata
发明人： Hiroshi Kamimura , Shigeru Izumi , Hiroshi Kitaguchi , Atsushi Yamagoshi , Katsutoshi Satoh , Noriyuki Sadaoka , Tarou Takagi , Kouji Kuwabara , Shouhei Numata
IPC分类号： A61B6/03
CPC分类号： H04N5/32 , G01N23/046 , G01N2223/419 , G06F19/00 , G06Q50/22 , G06Q50/24 , H04N5/361 , Y10S378/901
摘要： An X-ray CT apparatus having X-ray irradiator for irradiating an X-ray to an object to be inspected, an X-ray sensor for detecting an X-ray passed through the object to be inspected, an X-ray sensor signal processing circuit for processing an output signal from the X-ray sensor, and a CT control apparatus for reconstructing an image of the object to be inspected on the basis of an output signal of the X-ray sensor processed by the X-ray sensor signal processing circuit. The X-ray sensor signal processing circuit removes a DC component from the output signal of the X-ray sensor and integrates the output signal of the X-ray sensor having the DC component removed therefrom.
摘要翻译：一种X射线CT装置，其具有用于将X射线照射到待检查对象的X射线照射器，用于检测穿过被检查物体的X射线的X射线传感器，X射线传感器信号处理用于处理来自X射线传感器的输出信号的电路，以及CT控制装置，用于根据通过X射线传感器信号处理处理的X射线传感器的输出信号重建被检查物体的图像电路。 X射线传感器信号处理电路从X射线传感器的输出信号中除去DC分量，并对从其中除去直流分量的X射线传感器的输出信号进行积分。

8. 发明授权

US5457322A Semiconductor radiation detection apparatus for discriminating radiation having differing energy levels 失效
标题翻译：用于区分具有不同能级的辐射的半导体辐射检测装置
公开(公告)号：US5457322A
公开(公告)日：1995-10-10
申请号：US219353
申请日：1994-03-29
申请人： Hiroshi Kitaguchi , Shigeru Izumi
发明人： Hiroshi Kitaguchi , Shigeru Izumi
IPC分类号： G01T1/24 , H01L31/09 , H01L31/115
CPC分类号： G01T1/241 , H01L31/115
摘要： The invention provides a high sensitivity semiconductor radiation detection apparatus having pn junctions formed in opposite surfaces of at least one semiconductor wafer. A common electrode for the pn junctions is formed in the substrate region of the semiconductor wafers, and a variable reverse bias voltage is supplied to an electrode formed in contact with at least one of the pn junctions, to vary the thickness of the depletion region generated at said pn junction, and hence the sensitivity of said junction to incident radiation of varying energy levels. By adjusting the relative thickness of the respective depletion regions, different types of radiation may be distinguished.
摘要翻译：本发明提供一种具有形成在至少一个半导体晶片的相对表面上的pn结的高灵敏度半导体辐射检测装置。在半导体晶片的衬底区域中形成用于pn结的公共电极，并且向与pn结中的至少一个接触形成的电极提供可变反向偏压，以改变所产生的耗尽区的厚度在所述pn结处，因此所述结点对不同能级的入射辐射的灵敏度。通过调整各耗尽区的相对厚度，可以区分不同类型的辐射。

9. 发明授权

US5336890A Semiconductor detection apparatus for detecting nuclear radiation 失效
标题翻译：用于检测核辐射的半导体检测装置
公开(公告)号：US5336890A
公开(公告)日：1994-08-09
申请号：US130425
申请日：1993-10-01
申请人： Hiroshi Kitaguchi , Shigeru Izumi
发明人： Hiroshi Kitaguchi , Shigeru Izumi
IPC分类号： G01T1/24 , H01L31/09 , H01L31/115
CPC分类号： G01T1/241 , H01L31/115
摘要： A high sensitivity semiconductor radiation detector and semiconductor radiation detection apparatus having pn junctions formed in surfaces of at least one semiconductor wafer. A common electrode for the pn junctions may be formed in substrate regions of the semiconductor wafers, and a variable reverse bias voltage may be supplied to at least one electrode formed in contact with a pair of pn junctions. The variable reverse bias means adjusts depletion region thickness(es) so that the detector can detect and distinguish different kinds of nuclear radiation by differing energy levels.
摘要翻译：具有形成在至少一个半导体晶片的表面中的pn结的高灵敏度半导体辐射检测器和半导体辐射检测装置。可以在半导体晶片的衬底区域中形成用于pn结的公共电极，并且可以向与一对pn结接触形成的至少一个电极提供可变的反向偏置电压。可变反向偏置装置调节耗尽区厚度，使得检测器能够通过不同的能级检测和区分不同种类的核辐射。

10. 发明申请

US20070009082A1 X-ray sensor signal processor and X-ray computed tomography system using the same 有权
标题翻译： X射线传感器信号处理器和X射线计算机断层摄影系统使用相同
公开(公告)号：US20070009082A1
公开(公告)日：2007-01-11
申请号：US11519876
申请日：2006-09-13
申请人： Hiroshi Kamimura , Shigeru Izumi , Hiroshi Kitaguchi , Atsushi Yamagoshi , Katsutoshi Satoh , Noriyuki Sadaoka , Tarou Takagi , Kouji Kuwabara , Shouhei Numata
发明人： Hiroshi Kamimura , Shigeru Izumi , Hiroshi Kitaguchi , Atsushi Yamagoshi , Katsutoshi Satoh , Noriyuki Sadaoka , Tarou Takagi , Kouji Kuwabara , Shouhei Numata
IPC分类号： H05G1/60 , A61B6/00 , G01N23/00 , G21K1/12
CPC分类号： H04N5/32 , G01N23/046 , G01N2223/419 , G06F19/00 , G06Q50/22 , G06Q50/24 , H04N5/361 , Y10S378/901
摘要： An X-ray sensor signal processing circuit and method used in an industrial X-ray CT apparatus for processing an output signal of a semiconductor X-ray sensor which detects a pulsed X-ray emitted from an accelerator and passed through an object to be inspected. The circuit includes a first resistor having one terminal connected to the X-ray sensor and an other terminal connected to ground, a first condenser having one end terminal connected to a connection point of the X-ray sensor and the first resistor, an operational amplifier having an inverting input connected to an other terminal of the first condenser, and an integrator having a second resistor and a second condenser each connected to the operational amplifier in parallel. The circuit is configured so that at least bias conditions of the X-ray sensor and the first condenser are returned to a steady state after irradiation of the pulsed X-ray.
摘要翻译：一种用于处理半导体X射线传感器的输出信号的工业X射线CT装置的X射线传感器信号处理电路和方法，该半导体X射线传感器检测从加速器发出的脉冲X射线并通过待检查物体。该电路包括：第一电阻器，其一端连接到X射线传感器，另一端连接到地;第一电容器，其一端连接到X射线传感器和第一电阻的连接点，运算放大器具有连接到第一电容器的另一个端子的反相输入端和具有并联连接到运算放大器的第二电阻器和第二电容器的积分器。电路被配置为使得至少在X射线照射之后X射线传感器和第一冷凝器的偏置状态恢复到稳定状态。

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