公开(公告)号：US06333962B1

公开(公告)日：2001-12-25

申请号：US09326598

申请日：1999-06-07

申请人： Hiroshi Kitaguchi ,  Shigeru Izumi ,  Hiroshi Miyai ,  Katsutoshi Sato ,  Yasuko Aoki ,  Yukiya Hattori

发明人： Hiroshi Kitaguchi ,  Shigeru Izumi ,  Hiroshi Miyai ,  Katsutoshi Sato ,  Yasuko Aoki ,  Yukiya Hattori

IPC分类号： G01T100

CPC分类号： G01N23/046 ,  G01N23/043 ,  G01N2223/419

摘要： A non-destructive inspection apparatus has a radiation source, a radiation detector, a radiation source diver, a detector driver, a drive controller, a delay circuit, a radiation signal processing circuit, a memory, a computer, a display device, and an input device. The radiation detector consists of one-dimensional or two-dimensional array of detectors having a long collimator whose pores are in parallel with the radiation angle of the radiation emitted in an angular pattern from the radiation source, whereby a transmission image of a large size structure can be obtained at high speed and with a high resolution. Furthermore, the detect position in an inspection object can be specified by analyzing a plurality of specified transmission images using the inspection apparatus.

摘要翻译： 非破坏性检查装置具有辐射源，辐射检测器，辐射源潜水员，检测器驱动器，驱动控制器，延迟电路，辐射信号处理电路，存储器，计算机，显示设备和 输入设备。 放射线检测器由具有长准直器的一维或二维检测器阵列组成，其具有与辐射源以角度图案发射的辐射的辐射角平行的孔，由此具有大尺寸结构的透射图像 可以高速，高分辨率地获得。 此外，可以通过使用检查装置分析多个指定的发送图像来指定检查对象中的检测位置。

公开(公告)号：US6049586A

公开(公告)日：2000-04-11

申请号：US326593

申请日：1999-06-07

申请人： Hiroshi Kitaguchi ,  Shigeru Izumi ,  Hiroshi Miyai ,  Katsutoshi Sato ,  Yasuko Aoki ,  Yukiya Hattori

发明人： Hiroshi Kitaguchi ,  Shigeru Izumi ,  Hiroshi Miyai ,  Katsutoshi Sato ,  Yasuko Aoki ,  Yukiya Hattori

IPC分类号： G01N23/04

CPC分类号： G01N23/046 ,  G01N23/043 ,  G01N2223/419

摘要： A non-destructive inspection apparatus has a radiation source, a radiation detector, a radiation source diver, a detector driver, a drive controller, a delay circuit, a radiation signal processing circuit, a memory, a computer, a display device, and an input device. The radiation detector consists of one-dimensional or two-dimensional array of detectors having a long collimator whose pores are in parallel with the radiation angle of the radiation emitted in an angular pattern from the radiation source, whereby a transmission image of a large size structure can be obtained at high speed and with a high resolution. Furthermore, the detect position in an inspection object can be specified by analyzing a plurality of specified transmission images using the inspection apparatus.

摘要翻译： 非破坏性检查装置具有辐射源，辐射检测器，辐射源潜水员，检测器驱动器，驱动控制器，延迟电路，辐射信号处理电路，存储器，计算机，显示设备和 输入设备。 辐射检测器由具有长准直器的一维或二维检测器阵列组成，其长孔与辐射源以角度图案发射的辐射的辐射角平行，从而形成大尺寸结构的透射图像 可以高速，高分辨率地获得。 此外，可以通过使用检查装置分析多个指定的发送图像来指定检查对象中的检测位置。

公开(公告)号：US5933473A

公开(公告)日：1999-08-03

申请号：US832163

申请日：1997-04-02

申请人： Hiroshi Kitaguchi ,  Shigeru Izumi ,  Hiroshi Miyai ,  Katsutoshi Sato ,  Yasuko Aoki ,  Yukiya Hattori

发明人： Hiroshi Kitaguchi ,  Shigeru Izumi ,  Hiroshi Miyai ,  Katsutoshi Sato ,  Yasuko Aoki ,  Yukiya Hattori

IPC分类号： G01N23/04 ,  G01T1/00

CPC分类号： G01N23/046 ,  G01N23/043 ,  G01N2223/419

摘要： A non-destructive inspection apparatus has a radiation source, a radiation detector, a radiation source diver, a detector driver, a drive controller, a delay circuit, a radiation signal processing circuit, a memory, a computer, a display device, and an input device. The radiation detector consists of one-dimensional or two-dimensional array of detectors having a long collimator whose pores are in parallel with the radiation angle of the radiation emitted in an angular pattern from the radiation source, whereby a transmission image of a large size structure can be obtained at high speed and with a high resolution. Furthermore, the detect position in an inspection object can be specified by analyzing a plurality of specified transmission images using the inspection apparatus.

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。

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。

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。

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。

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。

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。

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。