公开(公告)号：US09594171B2

公开(公告)日：2017-03-14

申请号：US14403707

申请日：2012-06-08

Applicant: Irina Astafieva ,  Oliver Heid ,  Timothy Hughes

Inventor： Irina Astafieva ,  Oliver Heid ,  Timothy Hughes

IPC: G01V5/04 ,  G01T1/185 ,  H01J47/02 ,  G01T1/20

CPC classification number: G01T1/185 ,  G01T1/2006 ,  H01J47/02 ,  H01J47/024

Abstract: A detector for radiation, particularly high energy electromagnetic radiation is provided. The detector includes a converting section including a cathode for converting the radiation incident on the converting section in electrons by the photoelectric effect. The detector further includes a gas electron multiplier for generating an electron avalanche from electrons which are generated by the converting section and enter the gas electron multiplier, the gas electron multiplier including a first electrode, a dielectric layer and a second electrode, the first electrode being disposed at a first side of the dielectric layer adjacent to the converting section and the second electrode being disposed at a second side of the dielectric layer opposite to the first side. The gas electron multiplier includes a number of holes filled with gas, the holes extending through the first electrode, the dielectric layer and the second electrode.

Abstract translation: 提供了用于辐射的检测器，特别是高能量的电磁辐射。 检测器包括转换部分，其包括用于通过光电效应将入射在转换部分上的辐射转换为电子的阴极。 检测器还包括气体电子倍增器，用于从由转换部分产生并进入气体电子倍增器的电子产生电子雪崩，气体电子倍增器包括第一电极，电介质层和第二电极，第一电极为 设置在与转换部相邻的电介质层的第一侧，第二电极设置在与第一侧相反的电介质层的第二侧。 气体电子倍增器包括填充有气体的多个孔，所述孔延伸穿过第一电极，电介质层和第二电极。

公开(公告)号：US20170025259A1

公开(公告)日：2017-01-26

申请号：US15301269

申请日：2015-03-30

Applicant: The University of Warwick

Inventor： Yorck Ramachers ,  Gavin Bell

IPC: H01J43/18 ,  H01J47/02 ,  G01J1/42

CPC classification number: H01J43/18 ,  G01J1/429 ,  H01J31/49 ,  H01J43/045 ,  H01J43/22 ,  H01J43/24 ,  H01J47/02 ,  H01J2231/50021 ,  H01J2231/501

Abstract: A device (1), such as a detector or imaging device, for detecting ultraviolet light, is described. The device comprises a housing (4) for a chamber. Disposed within the housing is a charge carrier multiplier structure (9) comprising a dielectric sheet (10) having first and second opposite faces (11, 12) and having an array of holes (16) traversing the dielectric sheet between the first and second faces. The device includes a photocathode (13) supported on the first face of the dielectric sheet, having a work function of less than 6 eV. The device includes an anode (14) supported on the second face of the dielectric sheet.

Abstract translation: 描述了用于检测紫外光的装置（1），例如检测器或成像装置。 该装置包括用于腔室的壳体（4）。 设置在壳体内的电荷载体倍增器结构（9）包括具有第一和第二相对面（11,12）的电介质片（10），并且具有穿过第一和第二面之间的电介质片的孔阵列 。 该装置包括负载在电介质片的第一面上的光电阴极（13），具有小于6eV的功函数。 该装置包括支撑在电介质片的第二面上的阳极（14）。

公开(公告)号：US20170010368A9

公开(公告)日：2017-01-12

申请号：US14080218

申请日：2013-11-14

Applicant: Integrated Sensors LLC ,  University of Michigan

Inventor： Peter S. FRIEDMAN ,  Daniel S. LEVIN

IPC: G01T1/29 ,  H01J47/02 ,  H01J47/00

CPC classification number: G01T1/2935 ,  G01T1/185 ,  G01T1/2921 ,  H01J47/002 ,  H01J47/02

Abstract: A position-sensitive ionizing-radiation counting detector includes a first substrate and a second substrate, and a defined gas gap between the first substrate and the second substrate. The first and second substrates comprise dielectrics and a discharge gas is contained between the first and second substrate. A microcavity structure comprising microcavities is coupled to the second substrate. An anode electrode is coupled to the first substrate and a cathode electrode is coupled to the microcavity structure on the second substrate. The detector further includes pixels defined by a microcavity and an anode electrode coupled to a cathode electrode, and a resistor coupled to each of the cathode electrodes. Each pixel may output a gas discharge counting event pulse upon interaction with ionizing-radiation. The detector further includes a voltage bus coupled to each of the resistors and a power supply coupled to at least one of the electrodes.

公开(公告)号：US09519067B1

公开(公告)日：2016-12-13

申请号：US12886616

申请日：2010-09-21

Applicant: Hiroshi Kitaguchi ,  Takahiro Tadokoro ,  Katsunori Ueno ,  Hitoshi Kuwabara

Inventor： Hiroshi Kitaguchi ,  Takahiro Tadokoro ,  Katsunori Ueno ,  Hitoshi Kuwabara

IPC: G01T1/18 ,  G01T1/185 ,  G01T1/29 ,  H01J47/06 ,  H01J47/02

CPC classification number: G01M3/20 ,  G01N23/22 ,  G01N33/0027 ,  G01N33/0055 ,  G01T1/18 ,  G01T1/185 ,  G01T1/2935 ,  H01J47/02 ,  H01J47/06

Abstract: A radioactive gas measurement apparatus comprises: a radiation measurement cell comprising an inlet pipe and a discharge pipe, the radiation measurement cell introducing and discharging a radioactive gas containing a nuclide to be measured and a positron emitter nuclide through the inlet pipe and the discharge pipe; a radiation detector for measuring a radiation generated from the radioactive gas; and a radiation collimator allowing the radiation measurement cell to communicate with the radiation detector and setting a predetermined radiation measurement geometry condition between the radiation measurement cell and the radiation detector. Then, as the predetermined radiation measurement geometry condition, an inner wall area of the radiation measurement cell which the radiation detector views through the radiation collimator is set equal to or less than a half of a total inner wall area of the radiation measurement cell.

Abstract translation: 一种放射性气体测量装置，包括：放射线测量单元，包括入口管和排出管，所述辐射测量单元通过所述入口管和所述排放管引入并排出包含要测量的核素和正电子发射体核素的放射性气体; 用于测量由放射性气体产生的辐射的辐射检测器; 以及辐射准直器，其允许辐射测量单元与辐射检测器通信并且在辐射测量单元和辐射检测器之间设置预定的辐射测量几何状态。 然后，作为预定的辐射测量几何状态，放射线检测器通过辐射准直仪观察的辐射测量单元的内壁面积被设定为等于或小于辐射测量单元的总内壁面积的一半。

公开(公告)号：US20160011319A1

公开(公告)日：2016-01-14

申请号：US14815750

申请日：2015-07-31

Applicant: Mirion Technologies Inc.

Inventor： Jukka Kahilainen ,  Thomas Logan

IPC: G01T1/02 ,  H01J47/02

CPC classification number: G01T1/026 ,  G01T1/02 ,  G01T1/14 ,  G01T1/185 ,  G01T1/24 ,  G01T1/244 ,  G01T3/00 ,  G01T3/08 ,  G01T7/00 ,  H01J47/002 ,  H01J47/005 ,  H01J47/02 ,  H05K5/0278

Abstract: A direct ion storage (DIS) radiation detector or dosimeter has a design that is easy and low cost to manufacture using semiconductor processing techniques. The detectors include internal communications interfaces so they are easy to read. Different interfaces, including wired, e.g. USB ports, and wireless interfaces, may be used, so that the dosimeters may be read over the internet. The detectors can thus be deployed or used in a variety of detection systems and screening methods, including periodic or single time screening of people, objects, or containers at a location by means of affixed dosimeters; screening of objects, containers or people at a series of locations by means of affixed dosimeters, and surveillance of an area by monitoring moving dosimeters affixed to people or vehicles.

Abstract translation: 直接离子存储（DIS）辐射检测器或剂量计具有使用半导体处理技术制造成本容易且成本低的设计。 检测器包括内部通信接口，因此易于阅读。 不同的接口，包括有线，例如 可以使用USB端口和无线接口，使得可以通过互联网读取剂量计。 因此，检测器可以被部署或用于各种检测系统和筛选方法中，包括通过固定的剂量计定期或单次对人，物体或容器进行筛选; 通过固定剂量计对一系列地点的物体，集装箱或人员进行筛查，并通过监测贴在人员或车辆上的移动剂量计监视区域。

公开(公告)号：US09213111B2

公开(公告)日：2015-12-15

申请号：US13106818

申请日：2011-05-12

Applicant: Jeffrey Lacy

Inventor： Jeffrey Lacy

IPC: H01J47/02 ,  G01T3/00 ,  G01V5/00

CPC classification number: G01T3/008 ,  G01T3/00 ,  G01V5/0008

Abstract: The present invention includes a method for radiation detection. The present invention utilized boron-coated detectors as a new alternative to large 3He tubes that will address the timing limitations of 3He-based detectors in active interrogation systems, by providing a 100-times faster ion collection time. This may enable the counting of prompt neutrons starting within 10 μs following each gamma ray pulse. Current 3He-based detectors can only count delayed neutrons, and the linac pulse rate is severely limited by the lengthy times required to count these very late neutrons. If detection of the prompt component can be achieved, up to 150 times more neutrons can be detected in each pulse and pulse rate can be increased by more than 10 fold, giving a net sensitivity gain of 1500 while using the same detection array and linac.

Abstract translation: 本发明包括一种放射线检测方法。 本发明利用硼涂层检测器作为大型3He管的新替代方案，其通过提供100倍的离子收集时间来解决主动询问系统中基于3He的检测器的时序限制。 这可以使得能够在每个伽马射线脉冲之后的10μs内开始计数提示中子。 目前的基于3He的检测器只能计算延迟的中子，并且线性加速器脉冲率受到对这些非常晚的中子计数所需的漫长时间的严重限制。 如果可以实现提示分量的检测，则可以在每个脉冲中检测到多达150倍以上的中子，并且脉冲频率可以增加10倍以上，同时使用相同的检测阵列和直线加速器给出净灵敏度增益1500。

公开(公告)号：US09134430B2

公开(公告)日：2015-09-15

申请号：US12936357

申请日：2009-04-06

Applicant: Jukka Kahilainen ,  Thomas Logan

Inventor： Jukka Kahilainen ,  Thomas Logan

IPC: G01T1/24 ,  G01T1/02 ,  G01T1/14 ,  H01J47/00 ,  H01J47/02 ,  G01T3/08 ,  G01T3/00 ,  H05K5/02 ,  G01T1/185 ,  G01T7/00

CPC classification number: G01T1/026 ,  G01T1/02 ,  G01T1/14 ,  G01T1/185 ,  G01T1/24 ,  G01T1/244 ,  G01T3/00 ,  G01T3/08 ,  G01T7/00 ,  H01J47/002 ,  H01J47/005 ,  H01J47/02 ,  H05K5/0278

Abstract: A direct ion storage (DIS) radiation detector or dosimeter has a design that is easy and low cost to manufacture using semiconductor processing techniques. The detectors include internal communications interfaces so they are easy to read. Different interfaces, including wired, e.g. USB ports, and wireless interfaces, may be used, so that the dosimeters may be read over the internet. The detectors can thus be deployed or used in a variety of detection systems and screening methods, including periodic or single time screening of people, objects, or containers at a location by means of affixed dosimeters; screening of objects, containers or people at a series of locations by means of affixed dosimeters, and surveillance of an area by monitoring moving dosimeters affixed to people or vehicles.

Abstract translation: 直接离子存储（DIS）辐射检测器或剂量计具有使用半导体处理技术制造成本容易且成本低的设计。 检测器包括内部通信接口，因此易于阅读。 不同的接口，包括有线，例如 可以使用USB端口和无线接口，使得可以通过互联网读取剂量计。 因此，检测器可以被部署或用于各种检测系统和筛选方法中，包括通过固定的剂量计定期或单次对人，物体或容器进行筛选; 通过固定剂量计对一系列地点的物体，集装箱或人员进行筛查，并通过监测贴在人员或车辆上的移动剂量计监视区域。

公开(公告)号：US20140374624A1

公开(公告)日：2014-12-25

申请号：US14478143

申请日：2014-09-05

Applicant: MITSUBISHI ELECTRIC CORPORATION

Inventor： Toshihiro OTANI ,  Hisashi HARADA ,  Masahiro IKEDA ,  Kazushi HANAKAWA ,  Taizo HONDA

IPC: H01J37/304 ,  A61N5/10 ,  H01J47/02

CPC classification number: H01J37/304 ,  A61N5/1048 ,  A61N5/1071 ,  A61N5/1077 ,  A61N2005/1087 ,  H01J47/02

Abstract: In a particle beam therapy system which scans a particle beam and irradiates the particle beam to an irradiation position of an irradiation subject and has a dose monitoring device for measuring a dose of the particle beam and an ionization chamber smaller than the dose monitoring device, the ionization chamber measuring a dose of a particle beam passing through the dose monitoring device, the dose of the particle beam irradiated by the dose monitoring device is measured; the dose of the particle beam passing through the dose monitoring device is measured by the small ionization chamber; and a correction coefficient of the dose measured by the dose monitoring device corresponding to the irradiation position is found based on the dose of the particle beam measured by the small ionization chamber.

Abstract translation: 在粒子束治疗系统中，扫描粒子束并将粒子束照射到照射对象的照射位置，并且具有用于测量粒子束的剂量和小于剂量监测装置的电离室的剂量监测装置， 电离室测量通过剂量监测装置的粒子束的剂量，测量由剂量监测装置照射的粒子束的剂量; 通过小电离室测量通过剂量监测装置的粒子束的剂量; 并且基于由小电离室测量的粒子束的剂量，求出由与照射位置对应的剂量监测装置测量的剂量的校正​​系数。

公开(公告)号：US20090050818A1

公开(公告)日：2009-02-26

申请号：US12153052

申请日：2008-05-13

Applicant: Bjorn-Oliver Eversmann ,  Bjorn Heismann

Inventor： Bjorn-Oliver Eversmann ,  Bjorn Heismann

IPC: H01J47/02

CPC classification number: G01T1/247

Abstract: A method is disclosed for determining individual quantum absorption events in a radiation converter which counts quanta. In at least one embodiment of the method, temporally continuous analog-to-digital conversion of electrical signals generated by a quantum absorption event to a digital signal is carried out first of all by the radiation converter. The digital signal is then processed to determine the number of quanta of the underlying quantum absorption event absorbed in the radiation converter.

Abstract translation: 公开了一种用于确定对量子进行计数的辐射转换器中的各种量子吸收事件的方法。 在该方法的至少一个实施例中，首先通过辐射转换器执行由量子吸收事件产生的电信号到数字信号的时间上连续的模数转换。 然后处理数字信号以确定在辐射转换器中吸收的潜在量子吸收事件的量子数。

公开(公告)号：US20080023640A1

公开(公告)日：2008-01-31

申请号：US11530140

申请日：2006-09-08

Applicant: Shui-Hua Su ,  Ming-Chen Yuan ,  Chun-Liang Chen

Inventor： Shui-Hua Su ,  Ming-Chen Yuan ,  Chun-Liang Chen

IPC: G01T1/185 ,  H01J47/02

CPC classification number: H01J47/02

Abstract: A penetration ionization chamber includes a chamber, two outer electrode plates and a center electrode plate. The center electrode plate is disposed at the center of the chamber, and signals produced in the chamber can be collected completely by the center electrode plate to avoid signal losses and improve the accuracy of the test result of the ionization chamber. The center electrode plate also can maintain a constant internal volume of the chamber and prevent a change of effective volume within the chamber due to a change of electric field and enhance the stability of the test result of the ionization chamber. A protection electrode is wrapped by an insulation pin of the electrode and the outer insulation ring to form an insulation shield that can greatly reduce current leakage of the protection electrode and improve the accuracy of the test result of the ionization chamber.

Abstract translation: 穿透电离室包括室，两个外电极板和中心电极板。 中心电极板设置在室的中心，并且可以通过中心电极板完全收集室中产生的信号，以避免信号损失并提高电离室的测试结果的精度。 中心电极板还可以保持室的恒定内部容积，并且防止由于电场的变化而导致室内的有效体积的变化，并且增强了电离室的测试结果的稳定性。 保护电极由电极的绝缘针和外绝缘环包裹，形成绝缘屏蔽，可大大减少保护电极的漏电，提高电离室测试结果的准确性。