公开(公告)号：US20150085985A1

公开(公告)日：2015-03-26

申请号：US14482096

申请日：2014-09-10

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Hideyuki FUNAKI ,  Shunsuke KIMURA ,  Go KAWATA ,  Tetsuro ITAKURA ,  Masanori FURUTA

IPC: H04N5/32 ,  H04N5/378

CPC classification number: H04N5/32 ,  H03M1/145 ,  H03M1/46 ,  H03M1/60 ,  H04N5/378

Abstract: According to an embodiment, a signal processing device includes an integrator, a first analog-to-digital converter, and a histogram creator. The integrator is configured to integrate an electrical charge corresponding to electromagnetic waves. The first analog-to-digital converter is configured to perform an analog-to-digital conversion operation that generates digital data of the electrical charge using an integration output from the integrator, on a parallel with an integration operation performed by the integrator. The histogram creator is configured to create a histogram that represents an energy distribution of the electromagnetic waves, from the digital data generated by the first analog-to-digital converter.

Abstract translation: 根据实施例，信号处理装置包括积分器，第一模数转换器和直方图创建器。 积分器被配置为集成对应于电磁波的电荷。 第一模数转换器被配置为执行使用来自积分器的积分输出的积分器的积分运算并行地进行电荷的数字数据的模数转换动作。 直方图创建器被配置为从由第一模数转换器产生的数字数据创建表示电磁波的能量分布的直方图。

公开(公告)号：US20190285759A1

公开(公告)日：2019-09-19

申请号：US16123332

申请日：2018-09-06

Applicant: Kabushiki Kaisha Toshiba

Inventor： Kohei NAKAYAMA ,  Fumihiko AIGA ,  Go KAWATA ,  lsao TAKASU ,  Yuko NOMURA ,  Satomi TAGUCHI ,  Hyangmi JUNG ,  Atsushi WADA ,  Rei HASEGAWA

IPC: G01T1/24 ,  H01L27/30 ,  H01L51/44

Abstract: According to an embodiment, a detection element includes a first electrode, a second electrode, an organic conversion layer, and a third electrode. The organic conversion layer is provided between the first electrode and the second electrode, and is configured to convert energy of a radiant ray into a charge. The third electrode is provided inside the organic conversion layer. Bias is applied to the third electrode.

公开(公告)号：US20170248464A1

公开(公告)日：2017-08-31

申请号：US15266719

申请日：2016-09-15

Applicant: Kabushiki Kaisha Toshiba

Inventor： Shunsuke KIMURA ,  Go KAWATA ,  Hideyuki FUNAKI ,  Masanori FURUTA ,  Hirokatsu SHIRAHAMA ,  Tetsuro ITAKURA

IPC: G01J1/44

CPC classification number: G01J1/44 ,  G01J2001/444

Abstract: A radiation detection apparatus according to an embodiment includes a radiation detector that detects radiation; a first measurer that measures energy of the radiation from the radiation detected by the radiation detector; and a second measurer that measures the number of times that the radiation detector detects the radiation.

公开(公告)号：US20160377741A1

公开(公告)日：2016-12-29

申请号：US15259835

申请日：2016-09-08

Applicant: Kabushiki Kaisha Toshiba

Inventor： Hideyuki FUNAKI ,  Shunsuke KIMURA ,  Go KAWATA ,  Tetsuro ITAKURA ,  Masanori FURUTA

IPC: G01T1/20 ,  G01R19/175

CPC classification number: G01T1/2018 ,  G01R19/175 ,  G01T1/17 ,  G01T1/171

Abstract: According to an embodiment, a signal processor includes an integrator, a differentiator, a zero cross detector, a pile-up detector, an event interval detector, a counter, and a creator. The integrator is configured to calculate charge of current from a photoelectric converter for an incident radiation. The differentiator is configured to calculate a differential value of the current. The zero cross detector is configured to detect a zero cross of the differential value. The pile-up detector is configured to detect pile-up of the current based on the zero cross. The event interval detector is configured to detect, based on the zero cross and pile-up, an event interval of the radiation entering. The counter is configured to count, based on the charge and pile-up, the respective numbers of events according to the charge and the event interval. The creator is configured to create histograms for the numbers of events.

Abstract translation: 根据实施例，信号处理器包括积分器，微分器，零交叉检测器，堆积检测器，事件间隔检测器，计数器和创建器。 积分器被配置为从入射辐射的光电转换器计算电流的电荷。 微分器被配置为计算电流的微分值。 零交叉检测器被配置为检测差分值的零交叉。 堆积检测器被配置为基于零交叉检测电流的堆积。 事件间隔检测器被配置为基于零交叉和堆积检测辐射进入的事件间隔。 该计数器被配置为根据费用和事件间隔根据收费和堆积来计算各个事件的数量。 创建者被配置为为事件数创建直方图。

公开(公告)号：US20160269006A1

公开(公告)日：2016-09-15

申请号：US15053933

申请日：2016-02-25

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Tetsuro ITAKURA ,  Masanori FURUTA ,  Shunsuke KIMURA ,  Hideyuki FUNAKI ,  Go KAWATA ,  Hirokatsu SHIRAHAMA

IPC: H03K5/04 ,  G01J1/44 ,  H03K5/1532 ,  H03G3/30 ,  H03H11/04 ,  H03K5/24

CPC classification number: H03K5/04 ,  G01J1/44 ,  H03G3/30 ,  H03H11/1213 ,  H03H11/126 ,  H03K5/1532 ,  H03K5/24

Abstract: A waveform shaping filter according to an embodiment includes at least one filter stage and a control circuit. The filter stage includes a differentiation signal generation circuit, a proportional signal generation circuit, and an adder circuit. The differentiation signal generation circuit generates a differentiation signal obtained by amplifying a differentiation component of an input signal. The proportional signal generation circuit generates a proportional signal obtained by amplifying the input signal. The adder circuit outputs an output signal obtained by adding the proportional signal and the differentiation signal. The control circuit compares the output signal and a first detection level, detects at least one of an overshoot and an undershoot of the output signal, and controls a time constant of the filter stage, based on a detection result.

Abstract translation: 根据实施例的波形整形滤波器包括至少一个滤波器级和控制电路。 滤波器级包括微分信号发生电路，比例信号发生电路和加法器电路。 微分信号生成电路生成通过放大输入信号的微分分量而得到的微分信号。 比例信号发生电路产生通过放大输入信号而获得的比例信号。 加法器电路输出通过将比例信号和微分信号相加而获得的输出信号。 控制电路比较输出信号和第一检测电平，检测输出信号的过冲和下冲中的至少一个，并且基于检测结果来控制滤波器级的时间常数。

公开(公告)号：US20160084964A1

公开(公告)日：2016-03-24

申请号：US14849049

申请日：2015-09-09

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Shunsuke KIMURA ,  Hiroshi OTA ,  Go KAWATA ,  Hideyuki FUNAKI ,  Rei HASEGAWA

IPC: G01T1/18 ,  A61B6/00 ,  A61B6/03 ,  G01T1/24

CPC classification number: A61B6/032 ,  A61B6/4035 ,  A61B6/4241 ,  G01T1/248

Abstract: According to an embodiment, a photon detecting element includes one or more avalanche photodiodes and a circuit. The circuit is connected between cathodes of the one or more avalanche photodiodes and an external power source. The circuit is configured in which a first temperature coefficient representing variation of a setting potential with respect to temperature variation when constant-current driving is performed so that electrical potential of the cathodes becomes equal to the setting potential is substantially the same as a second temperature coefficient representing variation of breakdown voltage of the one or more avalanche photodiodes with respect to temperature variation.

Abstract translation: 根据实施例，光子检测元件包括一个或多个雪崩光电二极管和电路。 该电路连接在一个或多个雪崩光电二极管的阴极和外部电源之间。 该电路被配置为在执行恒流驱动时表示相对于温度变化的设定电位的变化的第一温度系数，使得阴极的电位变得等于设定电位与第二温度系数基本相同 表示一个或多个雪崩光电二极管相对于温度变化的击穿电压的变化。

公开(公告)号：US20150130538A1

公开(公告)日：2015-05-14

申请号：US14528196

申请日：2014-10-30

Applicant: Kabushiki Kaisha Toshiba

Inventor： Tetsuro ITAKURA ,  Masanori FURUTA ,  Shunsuke KIMURA ,  Go KAWATA ,  Hideyuki FUNAKI

IPC: H03F3/45

CPC classification number: H03F3/45183 ,  H03F3/45188 ,  H03F3/45475 ,  H03F3/45654 ,  H03F2203/45082 ,  H03F2203/45084 ,  H03F2203/45101 ,  H03F2203/45352 ,  H03F2203/45354 ,  H03F2203/45512 ,  H03F2203/45528 ,  H03F2203/45551

Abstract: In one embodiment, a differential amplifier circuit includes a first input terminal, a second input terminal, a first transistor, a second transistor, a third transistor, a current source, a first output terminal, a second output terminal, a first passive element, and a second passive element. The first (second) transistor has a control terminal connected to the first (second) input terminal. The third transistor has a control terminal. The control terminal is applied predetermined bias voltage. The current source is connected to a first terminal in each of the first transistor, second transistor, and third transistor. The first (second) output terminal is connected to a second terminal of the first (second) transistor. The first (second) passive element is connected between the first (second) input terminal and the first (second) output terminal.

Abstract translation: 在一个实施例中，差分放大器电路包括第一输入端，第二输入端，第一晶体管，第二晶体管，第三晶体管，电流源，第一输出端，​​第二输出端，第一无源元件， 和第二无源元件。 第一（第二）晶体管具有连接到第一（第二）输入端子的控制端子。 第三晶体管具有控制端子。 控制端子被施加预定的偏置电压。 电流源连接到第一晶体管，第二晶体管和第三晶体管中的每一个中的第一端子。 第一（第二）输出端子连接到第一（第二）晶体管的第二端子。 第一（第二）无源元件连接在第一（第二）输入端和第一（第二）输出端之间。

公开(公告)号：US20160349382A1

公开(公告)日：2016-12-01

申请号：US15156586

申请日：2016-05-17

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Yasuharu HOSONO ,  Kazunori MIYAZAKI ,  Go KAWATA ,  Mitsuyoshi KOBAYASHI ,  Rei HASEGAWA

IPC: G01T1/20 ,  G01N23/04

CPC classification number: G01T1/2018 ,  G01T1/2002

Abstract: A method of manufacturing a radiation detector according to an embodiment includes: forming a plurality of scintillator array columns, each of the scintillator array columns being formed by preparing a scintillator member that a thickness being smaller than a length and a width, the scintillator member having a first face, a second face, a third face, and a fourth face, and being cut from the third face along the second direction to form at least a groove that penetrates from the first face to the second face but does not reach the fourth face to have an uncut portion near the fourth face; stacking the scintillator array columns in the first direction with a space between each of adjacent two scintillator array columns, and filling a spacer material into the space; inserting a reflector into each space and each groove; and cutting the uncut portion.

Abstract translation: 根据实施例的制造放射线检测器的方法包括：形成多个闪烁体阵列，每个闪烁体阵列列通过制备厚度小于长度和宽度的闪烁体构件形成，所述闪烁体阵列具有 第一面，第二面，第三面和第四面，并且沿着第二方向从第三面切割成至少一个从第一面到第二面的第二面，但不到达第四面的凹槽 在第四面附近具有未切割部分; 将闪烁体阵列列沿着第一方向堆叠，并在每个相邻的两个闪烁体阵列之间具有间隔，并将间隔物填充到该空间中; 将反射器插入每个空间和每个凹槽中; 并切割未切割部分。

公开(公告)号：US20160231441A1

公开(公告)日：2016-08-11

申请号：US14963805

申请日：2015-12-09

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Keiko FUJII ,  Go KAWATA ,  Yasuharu HOSONO ,  Kazunori MIYAZAKI ,  Rei HASEGAWA

IPC: G01T7/00 ,  G01T1/36

CPC classification number: G01T7/005 ,  G01T1/2018 ,  G01T1/362

Abstract: According to an embodiment, a radiation detection device includes a scintillator layer, a plurality of detectors, a setting unit, an identifier, and a corrector. The scintillator layer is configured to convert radiation into scintillation light. The detectors are arranged along a first surface facing the scintillator layer to detect light. The setting unit is configured to set one of the detectors as a first detector to be corrected. The identifier is configured to identify, out of the detectors, a second detector that detects a synchronization signal synchronizing with a first signal detected by the first detector. The corrector is configured to correct an energy spectrum of light detected by the first detector on the basis of a second signal serving as the synchronization signal in signals detected by the second detector, the first signal, and characteristic X-ray energy of a scintillator raw material constituting the scintillator layer.

Abstract translation: 根据实施例，放射线检测装置包括闪烁体层，多个检测器，设置单元，标识符和校正器。 闪烁体层被配置为将辐射转换成闪烁光。 检测器沿着面向闪烁体层的第一表面布置以检测光。 设置单元被配置为将一个检测器设置为要校正的第一检测器。 标识符被配置为在检测器之外识别检测与由第一检测器检测到的第一信号同步的同步信号的第二检测器。 校正器被配置为基于由第二检测器检测的信号中的同步信号的第二信号，第一信号和闪烁器原始的特征X射线能量来校正由第一检测器检测到的光的能谱 构成闪烁体层的材料。

公开(公告)号：US20150349753A1

公开(公告)日：2015-12-03

申请号：US14720640

申请日：2015-05-22

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Tetsuro ITAKURA ,  Masanori FURUTA ,  Shunsuke KIMURA ,  Hideyuki FUNAKI ,  Go KAWATA

IPC: H03K3/012

CPC classification number: G06G7/184 ,  H03K4/502 ,  H03M1/00 ,  H03M1/38 ,  H03M1/52

Abstract: An integration circuit according to one embodiment includes a first capacitance element, a capacitance circuit, a comparison circuit, a memory circuit and an operation circuit. The first capacitance element receives a current signal. The capacitance circuit includes a first switch and a second capacitance element, and is connected in parallel to the first capacitance element. The second capacitance element receives a current signal via the first switch. The comparison circuit compares a voltage of the first capacitance element with a reference voltage to obtain a comparison result. The memory circuit stores the comparison result, and opens or closes the first switch based on the comparison result. The operation circuit outputs a residual signal based on a difference between the integrated value obtained by the first capacitance element and the second capacitance element and a value based on the comparison result.

Abstract translation: 根据一个实施例的积分电路包括第一电容元件，电容电路，比较电路，存储器电路和操作电路。 第一电容元件接收电流信号。 电容电路包括第一开关和第二电容元件，并且并联连接到第一电容元件。 第二电容元件经由第一开关接收电流信号。 比较电路将第一电容元件的电压与参考电压进行比较，以获得比较结果。 存储电路存储比较结果，并且基于比较结果来打开或关闭第一开关。 操作电路基于由第一电容元件获得的积分值与第二电容元件之间的差值和基于比较结果的值输出残差信号。