公开(公告)号：US20130146767A1

公开(公告)日：2013-06-13

申请号：US13818000

申请日：2011-08-04

申请人： Tomoyuki Seino ,  Yuichiro Ueno ,  Takafumi Ishitsu

发明人： Tomoyuki Seino ,  Yuichiro Ueno ,  Takafumi Ishitsu

IPC分类号： G01T1/17

CPC分类号： G01T1/17 ,  G01T1/171

摘要： A radiation measuring device includes: a detector that detects radiation; a preamplifier that amplifies a signal outputted from the detector; a shaping amplifier that shapes the waveform of the signal outputted from the preamplifier; an A/D converter that converts the analog signal output from the shaping amplifier to a digital signal; and a digital data processing unit that calculates digital signal output from the A/D converter, wherein energy information of the radiation inputted to the detector is obtained from a pulse height of the pulse signal processed by the preamplifier and the shaping amplifier, and the pulse height of the current pulse is corrected in the digital data processing unit by performing an arithmetic operation using the pulse height information of the current pulse digitalized by the A/D converter, the generation time information of the preceding pulse, and the pulse height information of the preceding pulse.

摘要翻译： 辐射测量装置包括：检测器，其检测辐射; 放大从检测器输出的信号的前置放大器; 整形放大器，其对从前置放大器输出的信号的波形进行整形; A / D转换器，其将从整形放大器输出的模拟信号转换为数字信号; 以及数字数据处理单元，其计算从A / D转换器输出的数字信号，其中，从由前置放大器和整形放大器处理的脉冲信号的脉冲高度获得输入到检测器的辐射的能量信息，并且脉冲 通过使用由A / D转换器数字化的当前脉冲的脉冲高度信息，前一脉冲的生成时间信息和脉冲高度信息进行算术运算，在数字数据处理单元中校正电流脉冲的高度 前面的脉冲。

公开(公告)号：US20130048869A1

公开(公告)日：2013-02-28

申请号：US13580786

申请日：2011-02-10

申请人： Shinya Kominami ,  Tomoyuki Seino

发明人： Shinya Kominami ,  Tomoyuki Seino

IPC分类号： G01T1/24

CPC分类号： G01T1/24 ,  G01T1/247

摘要： The present invention provides a radiation measurement device, which shortens periodic interruption periods in the radiation measurements and prevents damage to the amplifier, and a nuclear medicine diagnosis system using such measurement device. The radiation measurement device comprises a semiconductor radiation detector detecting a radiation, a capacitor, which applies voltage to the semiconductor radiation detector, one or more direct current power supplies each capable of making either of positive and negative electric charge collect on one of the electrodes of the capacitor, a constant-current device, which conducts an electric current from the direct current power supplies to the one of the electrodes of the capacitor, and two or more switching devices installed in the wiring connecting the direct current power supplies and the one of the electrodes of the capacitor. Further disclosed is a nuclear medicine diagnosis system equipped with such radiation measurement device.

摘要翻译： 本发明提供了一种辐射测量装置，其缩短辐射测量中的周期性中断周期并防止对放大器的损坏，以及使用这种测量装置的核医学诊断系统。 辐射测量装置包括检测辐射的半导体辐射检测器，向半导体辐射检测器施加电压的电容器，一个或多个直流电源，每个能够将正电荷和负电荷中的任一个集电在一个电极上 电容器，恒流装置，其将来自直流电源的电流传导到电容器的一个电极;以及安装在连接直流电源的布线中的两个或更多个开关装置， 电容器的电极。 进一步公开了配备有这种辐射测量装置的核医学诊断系统。

公开(公告)号：US20110215254A1

公开(公告)日：2011-09-08

申请号：US13107282

申请日：2011-05-13

申请人： Isao Takahashi ,  Takafumi Ishitsu ,  Yuichiro Ueno ,  Tomoyuki Seino

发明人： Isao Takahashi ,  Takafumi Ishitsu ,  Yuichiro Ueno ,  Tomoyuki Seino

IPC分类号： G01T1/00

CPC分类号： G01T1/249 ,  G01T1/2018

摘要： A PET apparatus comprises a plurality of detector units in the circumferential direction, wherein the detector unit includes a plurality of unit substrates therein, and wherein the unit substrate includes: a plurality of detectors upon which a γ-ray is incident; and an analog ASIC and digital ASIC for processing a γ-ray detection signal outputted by each of the detectors. The analog ASIC includes two slow systems having mutually different time constants, each of which outputs a pulseheight value. A noise determination part of the digital ASIC determines whether a relevant detection signal is an intended γ-ray detection signal or a noise based on a correlation between the pulseheight values, and a noise counting part counts the number of times of noise determination, and a detector output signal processing control part controls the signal processing with respect to an output signal from a relevant detector based on the count.

摘要翻译： PET装置包括沿圆周方向的多个检测器单元，其中所述检测器单元包括多个单元基板，并且其中所述单元基板包括：多个检测器，其上存在γ射线; 以及用于处理由每个检测器输出的γ射线检测信号的模拟ASIC和数字ASIC。 模拟ASIC包括具有相互不同的时间常数的两个慢速系统，每个时间常数输出脉冲高度值。 数字ASIC的噪声确定部分基于脉冲高度值之间的相关性来确定相关检测信号是否是期望的γ射线检测信号或噪声，并且噪声计数部分对噪声确定的次数进行计数，并且 检测器输出信号处理控制部分基于计数来控制来自相关检测器的输出信号的信号处理。

公开(公告)号：US07964849B2

公开(公告)日：2011-06-21

申请号：US12837877

申请日：2010-07-16

申请人： Isao Takahashi ,  Takafumi Ishitsu ,  Yuichiro Ueno ,  Tomoyuki Seino

发明人： Isao Takahashi ,  Takafumi Ishitsu ,  Yuichiro Ueno ,  Tomoyuki Seino

IPC分类号： G01T1/161

CPC分类号： G01T1/249 ,  G01T1/2018

摘要： A PET apparatus comprises a plurality of detector units in the circumferential direction, wherein the detector unit includes a plurality of unit substrates therein, and wherein the unit substrate includes: a plurality of detectors upon which a γ-ray is incident; and an analog ASIC and digital ASIC for processing a γ-ray detection signal outputted by each of the detectors. The analog ASIC includes two slow systems having mutually different time constants, each of which outputs a pulseheight value. A noise determination part of the digital ASIC determines whether a relevant detection signal is an intended γ-ray detection signal or a noise based on a correlation between the pulseheight values, and a noise counting part counts the number of times of noise determination, and a detector output signal processing control part controls the signal processing with respect to an output signal from a relevant detector based on the count.

摘要翻译： PET装置包括沿圆周方向的多个检测器单元，其中所述检测器单元包括多个单元基板，并且其中所述单元基板包括：多个检测器，其上存在γ射线; 以及用于处理由每个检测器输出的γ射线检测信号的模拟ASIC和数字ASIC。 模拟ASIC包括具有相互不同的时间常数的两个慢速系统，每个时间常数输出脉冲高度值。 数字ASIC的噪声确定部分基于脉冲高度值之间的相关性来确定相关检测信号是否是期望的γ射线检测信号或噪声，并且噪声计数部分对噪声确定的次数进行计数，并且 检测器输出信号处理控制部分基于计数来控制来自相关检测器的输出信号的信号处理。

公开(公告)号：US20100308230A1

公开(公告)日：2010-12-09

申请号：US12857950

申请日：2010-08-17

申请人： Norihito YANAGITA ,  Tomoyuki SEINO ,  Takafumi ISHITSU ,  Tsutomu IMAI ,  Atsumi KAWATA ,  Shinya KOMINAMI

发明人： Norihito YANAGITA ,  Tomoyuki SEINO ,  Takafumi ISHITSU ,  Tsutomu IMAI ,  Atsumi KAWATA ,  Shinya KOMINAMI

IPC分类号： G01T1/161 ,  G01T1/24

CPC分类号： G01T1/249 ,  G01T1/242 ,  G01T1/243

摘要： Provided are a detector array substrate and a nuclear medicine diagnosis device using the same. The detector array substrate is provided with a flat detection module stacked in plural detection elements, which is connected to said detectors each other, and have signal electrodes for reading out signals of respective detectors, and bias electrodes for applying bias voltage to respective detectors, in order to form plural detectors for detecting radiation; and stacked with the detectors by arranging the detection modules having the plural detectors, in an X direction, as well as by arranging the detection modules in a flat structure on both planes or one plane of a wiring board in a Z direction as for an XZ plane for detecting the radiation, and provided with the plural detection modules in a Y direction.

摘要翻译： 提供了一种检测器阵列基板和使用该检测器阵列基板的核医学诊断装置。 检测器阵列基板设置有堆叠在多个检测元件中的平坦检测模块，其连接到所述检测器，并且具有用于读出各个检测器的信号的信号电极和用于向各个检测器施加偏置电压的偏置电极， 以形成用于检测辐射的多个检测器; 并且通过在X方向上布置具有多个检测器的检测模块，并且通过将检测模块布置在Z方向上的布线板的两个平面或一个平面上的平面结构中，并与检测器堆叠 用于检测辐射的平面，并且在Y方向上设置有多个检测模块。

公开(公告)号：US07750303B2

公开(公告)日：2010-07-06

申请号：US11355136

申请日：2006-02-16

申请人： Yuuichirou Ueno ,  Kensuke Amemiya ,  Norihito Yanagita ,  Takafumi Ishitsu ,  Tomoyuki Seino ,  Takashi Matsumoto ,  Shinobu Irikura

发明人： Yuuichirou Ueno ,  Kensuke Amemiya ,  Norihito Yanagita ,  Takafumi Ishitsu ,  Tomoyuki Seino ,  Takashi Matsumoto ,  Shinobu Irikura

IPC分类号： G01T1/161 ,  G01T1/24

CPC分类号： G01T1/2985

摘要： A positron emission tomography apparatus installs a plurality of detector units in the circumference of a bed. The detector unit installs a plurality of combined substrates including detectors, analogue ASICs, and a digital ASIC and a voltage adjustment device inside a housing. A partition plate installed inside the housing separates the region inside the housing into a first region installed with the combined substrates and a second region installed with the voltage adjustment device. The partition plate blocks noise generated in the voltage adjustment device so as not to affect γ-ray detection signals outputted from the detectors, thereby preventing the effect of the noise generated in the voltage adjustment device toward γ-ray detection signals and shortening the examination time.

摘要翻译： 正电子发射断层摄影装置在床的周围安装多个检测器单元。 检测器单元将包括检测器，模拟ASIC以及数字ASIC和电压调节装置的多个组合基板安装在壳体内。 安装在壳体内部的隔板将壳体内的区域分离成安装有组合基板的第一区域和安装有电压调节装置的第二区域。 分隔板阻止在电压调节装置中产生的噪声，从而不影响从检测器输出的γ射线检测信号，从而防止电压调节装置中产生的噪声对γ射线检测信号的影响，缩短检查时间 。

公开(公告)号：US20090194701A1

公开(公告)日：2009-08-06

申请号：US12398752

申请日：2009-03-05

申请人： Tomoyuki Seino ,  Yuuichirou Ueno ,  Katsutoshi Tsuchiya ,  Kazuma Yokoi ,  Shinya Kominami

发明人： Tomoyuki Seino ,  Yuuichirou Ueno ,  Katsutoshi Tsuchiya ,  Kazuma Yokoi ,  Shinya Kominami

IPC分类号： G01T1/24

CPC分类号： G01T1/249 ,  G01T1/24

摘要： A radiological imaging apparatus using a semiconductor radiation detector to make it possible to reduce a radiation measurement off time that may result from an attempt to avoid polarization, the radiological imaging apparatus comprising a capacitor that applies a voltage to a semiconductor radiation detector that detects a radiation from a subject, first current regulated means for conducting a charge current to the capacitor, and second current regulated means for conducting a discharge current from the capacitor, or comprising a capacitor that applies a voltage to the semiconductor radiation detector, a first resistor that conducts a charge current to and a discharge current from the capacitor, and a second resistor connected in parallel with the first resistor to subject the capacitor to charging and discharging.

摘要翻译： 一种使用半导体辐射检测器的放射成像装置，可以减少可能由于尝试避免极化而产生的辐射测量关闭时间，放射线成像设备包括电容器，该电容器向检测辐射的半导体辐射检测器施加电压 来自被摄体的用于对电容器进行充电电流的第一电流调节装置和用于从电容器传导放电电流的第二电流调节装置，或包括向半导体辐射检测器施加电压的电容器， 来自电容器的充电电流和放电电流，以及与第一电阻器并联连接以使电容器充电和放电的第二电阻器。

公开(公告)号：US07514689B2

公开(公告)日：2009-04-07

申请号：US11316966

申请日：2005-12-27

申请人： Tomoyuki Seino ,  Yuuichirou Ueno ,  Katsutoshi Tsuchiya ,  Kazuma Yokoi ,  Shinya Kominami

发明人： Tomoyuki Seino ,  Yuuichirou Ueno ,  Katsutoshi Tsuchiya ,  Kazuma Yokoi ,  Shinya Kominami

IPC分类号： G01T1/24

CPC分类号： G01T1/249 ,  G01T1/24

摘要： A radiological imaging apparatus using a semiconductor radiation detector to make it possible to reduce a radiation measurement off time that may result from an attempt to avoid polarization, the radiological imaging apparatus comprising a capacitor that applies a voltage to a semiconductor radiation detector that detects a radiation from a subject, first current regulated means for conducting a charge current to the capacitor, and second current regulated means for conducting a discharge current from the capacitor, or comprising a capacitor that applies a voltage to the semiconductor radiation detector, a first resistor that conducts a charge current to and a discharge current from the capacitor, and a second resistor connected in parallel with the first resistor to subject the capacitor to charging and discharging.

摘要翻译： 一种使用半导体辐射检测器的放射成像装置，可以减少可能由于尝试避免极化而产生的辐射测量关闭时间，放射线成像设备包括电容器，该电容器向检测辐射的半导体辐射检测器施加电压 来自被摄体的用于对电容器进行充电电流的第一电流调节装置和用于从电容器传导放电电流的第二电流调节装置，或包括向半导体辐射检测器施加电压的电容器， 来自电容器的充电电流和放电电流，以及与第一电阻器并联连接以使电容器充电和放电的第二电阻器。

公开(公告)号：US20070111358A1

公开(公告)日：2007-05-17

申请号：US11560162

申请日：2006-11-15

申请人： Tomoyuki Seino ,  Kazuma Yokoi ,  Isao Takahashi ,  Yuichiro Ueno

发明人： Tomoyuki Seino ,  Kazuma Yokoi ,  Isao Takahashi ,  Yuichiro Ueno

IPC分类号： H01L21/00 ,  H01L29/82

CPC分类号： G01T1/243 ,  A61B6/037 ,  G01T1/24 ,  G01T1/249 ,  G01T1/2928

摘要： A nuclear medicine imaging system is configured so that a semiconductor element and a metallic conductive member are bonded to one another with an electrically conductive adhesive composed of electric conductive particles and a resin binder, and a charge which is generated when radiation is incident on the semiconductor element is taken as a signal by a detection circuit from the conductive member through the electrically conductive adhesive, and a current source unit for forcing a larger current than that due to a charge generated by incoming radiation to flow at least through the electrically conductive adhesive and a protection circuit for protecting the detection circuit from the larger current passed by the current source unit are provided.

摘要翻译： 核医学成像系统被配置为使得半导体元件和金属导电构件由导电颗粒和树脂粘合剂组成的导电粘合剂彼此接合，并且当辐射入射到半导体时产生的电荷 元件通过导电部件通过导电粘合剂被检测电路作为信号，以及电流源单元，用于强迫比由入射辐射产生的电荷至少通过导电粘合剂流动的电流更大的电流;以及 提供了用于保护检测电路免受来自电流源单元的较大电流的保护电路。

公开(公告)号：US20120326045A1

公开(公告)日：2012-12-27

申请号：US13580556

申请日：2011-02-03

申请人： Tomoyuki Seino ,  Yuichiro Ueno ,  Takafumi Ishitsu

发明人： Tomoyuki Seino ,  Yuichiro Ueno ,  Takafumi Ishitsu

IPC分类号： G01T1/02

CPC分类号： G01T1/247 ,  G01T1/17

摘要： The purpose of the present invention is to improve energy resolving power and prevent energy resolving power from deteriorating when a thick semiconductor detection element with a wide energy range is used, in a radiation measuring device using a semiconductor detector and a nuclear medicine diagnostic device. With the present invention, the purpose is achieved by pulsed wave value correction employing the difference of (Hs−Hf) between the pulsed wave height value Hs obtained from the slow speed shaping circuit, and the pulsed wave height value Hf obtained from the fast speed shaping circuit and normalized with respect to Hs. An even more desirable result may be obtained by employing either (Hs−Hf)/Hf or exp(k(Hs−Hf)/Hf), wherein k is a coefficient to be optimized, said optimization being dependent on the measurement assembly.

摘要翻译： 本发明的目的在于在使用半导体检测器的放射线测量装置和核医学诊断装置中，当使用宽能量范围的厚半导体检测元件时，提高能量分辨能力，防止能量分辨能力劣化。 利用本发明，通过使用从慢速整形电路获得的脉冲波高值Hs和从快速成形电路得到的脉冲波高值Hf之间的（Hs-Hf）差的脉冲波值校正， 整形电路并相对于Hs进行归一化。 通过使用（Hs-Hf）/ Hf或exp（k（Hs-Hf）/ Hf）可以获得甚至更理想的结果，其中k是要优化的系数，所述优化取决于测量组件。