公开(公告)号：US07375342B1

公开(公告)日：2008-05-20

申请号：US11376243

申请日：2006-03-16

Applicant: Carol Ann Wedding

Inventor： Carol Ann Wedding

IPC: H01J47/00

CPC classification number: H01J47/02 ,  H01J11/18

Abstract: A radiation detection device comprising a plasma display panel (PDP) with a multiplicity of radiation detection pixels, each radiation detection pixel being defined by a hollow gas filled Plasma-shell having one or more flat sides. Arrays of Plasma-shells are positioned on a suitable base such as a substrate and used to inspect and detect radiation from a selected object. Each Plasma-shell may be of any suitable geometric configuration, including a Plasma-disc and a Plasma-dome. Luminescent material may be positioned near or on each Plasma-shell to provide or enhance light output. A flexible base substrate may be used to wrap a layer or blanket of radiation detection Plasma-shells about the selected object.

Abstract translation: 一种辐射检测装置，包括具有多个辐射检测像素的等离子体显示面板（PDP），每个辐射检测像素由具有一个或多个平坦侧面的中空气体填充的等离子体外壳限定。 等离子体壳阵列位于合适的基底如基底上，用于检查和检测来自所选物体的辐射。 每个等离子体壳可以具有任何合适的几何构型，包括等离子体盘和等离子体圆顶。 发光材料可以位于每个等离子体壳体附近或之上，以提供或增强光输出。 可以使用柔性基底来围绕所选对象包裹辐射检测等离子体壳的层或毯。

公开(公告)号：US07106828B2

公开(公告)日：2006-09-12

申请号：US09994188

申请日：2001-11-26

Applicant: Nasreen Gazala Chopra ,  Ronald L. Moon

Inventor： Nasreen Gazala Chopra ,  Ronald L. Moon

IPC: H05G1/64

CPC classification number: G01N23/04 ,  H01J47/02

Abstract: X-ray imaging systems are provided. A representative x-ray imaging system includes a gas detector that is configured to retain a volume of gas. The gas detector incorporates a first detection circuit corresponding to a first region of the gas and a second detection circuit corresponding to a second region of the gas. The first detection circuit is adapted to provide a first signal indicative of an intensity of x-rays radiating into the first region of the gas and the second detection circuit is adapted to provide a second signal indicative of an intensity of x-rays radiating into the second region of the gas. Methods and other systems also are provided.

公开(公告)号：US20050173648A1

公开(公告)日：2005-08-11

申请号：US10774817

申请日：2004-02-09

Applicant: Daniel Schmidt ,  Myles Sommerfeldt ,  Kevin DeFever ,  Thomas Bonde

Inventor： Daniel Schmidt ,  Myles Sommerfeldt ,  Kevin DeFever ,  Thomas Bonde

IPC: H01J47/02

CPC classification number: H01J47/02 ,  A61N2005/1076

Abstract: An instrument for checking quality of therapeutic x-ray and electron radiation provides modes optimized for both electrons and for photons obtained by physically flipping the unit to interpose the necessary build-up material between the radiation beam and contained detectors. The invention provides an improved method of constructing ionization detectors for improved energy discrimination using such detectors and wire-free operation.

Abstract translation: 用于检查治疗性X射线和电子辐射质量的仪器提供对电子和通过物理地翻转该单元以在辐射束和包含的检测器之间插入必要的积聚材料所获得的光子而优化的模式。 本发明提供了一种改进的电离检测器的方法，用于使用这种检测器和无线操作来改善能量鉴别。

公开(公告)号：US06891165B2

公开(公告)日：2005-05-10

申请号：US10313883

申请日：2002-12-06

Applicant: Jean-Claude Buffet ,  Bruno Guerard

Inventor： Jean-Claude Buffet ,  Bruno Guerard

IPC: G01T1/185 ,  G01T3/00 ,  H01J47/00 ,  H01J47/02 ,  G01T1/164 ,  H01J47/08

CPC classification number: H01J47/02 ,  H01J47/002

Abstract: An ionizing radiation detector comprising a plurality of conductive tubes arranged in parallel fashion containing a gas mixture under pressure, a conductive wire being tensed at the center of each tube and adapted to being polarized with respect thereto, and comprising first and second tight enclosures each having a wall provided with openings in which are tightly inserted the first and second ends of each tube, the ends of each tube being open.

Abstract translation: 一种电离辐射探测器，包括多个以平行方式排列的导电管，其中包含压力下的气体混合物，导电线在每个管的中心处被张紧并且适于相对于其偏振，并且包括第一和第二紧密封壳，每个具有 设置有开口的壁，其中密封地插入每个管的第一和第二端，每个管的端部是敞开的。

公开(公告)号：US20040021088A1

公开(公告)日：2004-02-05

申请号：US10385156

申请日：2003-03-10

Inventor： Dominique Thers ,  Lionel Luquin ,  Michel Coulon Philippe ,  Georges Charpak

IPC: G01T001/18

CPC classification number: H01J47/02

Abstract: Radiation detector comprising one or more amplifying structures, each comprising an input electrode and an output grid which are kept separated by an insulating spacer. Each spacer defines amplification spaces for generating electrons by the avalanche effect. The dimensions of these amplification spaces are decorrelated with those of the mesh cells of the output grid.

Abstract translation: 辐射检测器包括一个或多个放大结构，每个放大结构包括输入电极和输出栅格，其被绝缘隔离物保持分开。 每个间隔物定义用于通过雪崩效应产生电子的放大空间。 这些放大空间的尺寸与输出栅格的网格单元的尺寸相关。

公开(公告)号：US20030150999A1

公开(公告)日：2003-08-14

申请号：US10313883

申请日：2002-12-06

Inventor： Jean-Claude Buffet ,  Bruno Guerard

IPC: G01T001/185 ,  H01J047/02

CPC classification number: H01J47/02 ,  H01J47/002

Abstract: An ionizing radiation detector comprising a plurality of conductive tubes arranged in parallel fashion containing a gas mixture under pressure, a conductive wire being tensed at the center of each tube and adapted to being polarized with respect thereto, and comprising first and second tight enclosures each having a wall provided with openings in which are tightly inserted the first and second ends of each tube, the ends of each tube being open.

Abstract translation: 一种电离辐射探测器，包括多个以平行方式排列的导电管，其中包含压力下的气体混合物，导电线在每个管的中心处被张紧并且适于相对于其偏振，并且包括第一和第二紧密封壳，每个具有 设置有开口的壁，其中密封地插入每个管的第一和第二端，每个管的端部是敞开的。

公开(公告)号：US06477223B1

公开(公告)日：2002-11-05

申请号：US09551603

申请日：2000-04-17

Applicant: Tom Francke

Inventor： Tom Francke

IPC: A61B600

CPC classification number: A61B6/032 ,  G01T1/185 ,  G01T1/2928 ,  G01T1/2985 ,  H01J47/02

Abstract: A tomographic apparatus for constructing a two-dimensional image of a cut (35) through an object comprises a source (3) for providing a planar beam of radiation so that the beam passes through said object, and thus defines said cut; a detector (9) positioned opposite said source and aligned therewith for detecting the radiation not absorbed or scattered by said object; an arrangement for causing relative movement, between said object and said source and detector combination about an axis of rotation (44) that is perpendicular to said cut through said object; a reconstruction device (39) coupled to said detector for performing a reconstruction process based upon non-absorbed and non-scattered radiation detected by said detector at a plurality of different relative positions between said object and said source and detector combination as reached by said movement causing arrangement, wherein said reconstruction device converts values of non-absorbed and non-scattered radiation into values of absorbed radiation in each of an arbitrarily large number of voxels selected within said cut; and a display (41) coupled to said reconstruction device for projecting a two-dimensional image of said amounts of absorbed radiation. The detector comprises a chamber (13) filled with an ionizable substance, and including a first (17, 18) and a second (27, 29) electrode arrangement, substantially in parallel with each other; a radiation entrance (33) arranged such that the planar radiation beam (1) can enter the chamber between and substantially in parallel with the first and second electrode arrangements and ionize the ionizable substance; an electron avalanche amplification arrangement (15) for avalanche amplification of electrons created during ionization; and a read-out arrangement (27) for detection of the electron avalanches and/or correspondingly produced ions.

Abstract translation: 用于通过物体构建切口（35）的二维图像的断层摄影装置包括用于提供平面射线束的光源（3），使得光束通过所述物体，从而限定所述切割; 与所述源相对定位并与其对准的检测器（9），用于检测不被所述物体吸收或散射的辐射; 用于在所述物体和所述源和检测器组合之间围绕垂直于穿过所述物体的所述切割的旋转轴线（44）引起相对运动的装置; 耦合到所述检测器的重建装置（39），用于基于由所述检测器在由所述运动达到的所述物体与所述源和检测器组合之间的多个不同相对位置处检测到的非吸收和非散射辐射进行重建过程 其中所述重建装置将非吸收和非散射辐射的值转换成在所述切割中选择的任意大量体素的每一个中的吸收辐射值; 以及耦合到所述重建装置的用于投影所述吸收辐射量的二维图像的显示器（41）。 检测器包括填充有可电离物质的腔室（13），并且包括基本上彼此平行的第一（17,18）和第二（27,29）电极装置; 布置成使得所述平面辐射束（1）可以在所述第一和第二电极装置之间并基本上与所述第一和第二电极装置平行进入所述腔室并电离所述可电离物质的辐射入口（33） 用于在电离期间产生的电子的雪崩放大的电子雪崩放大装置（15）; 以及用于检测电子雪崩和/或相应产生的离子的读出装置（27）。

公开(公告)号：US20020149305A1

公开(公告)日：2002-10-17

申请号：US10166197

申请日：2002-06-11

Inventor： Mats Danielsson ,  Anders Brahme

IPC: H01J043/00

CPC classification number: H01J47/02 ,  A61N5/1048 ,  A61N2005/1054 ,  G01T1/185

Abstract: A detector unit for detecting photons in the energy range 1 keV to 100 MeV, includes at least two converter layers adapted to interact with incident X-ray photons and to cause electrons to be emitted therefrom, at least one amplifier adapted to interact with the electrons emitted from the converters and adapted to produce a multiplicity of secondary electrons and photons representing a signal proportional to the incident fluence of X-ray photons, a connector connecting the detector to an electric field generator providing an electric drift field for secondary electrons in the detector, and a sensor device arranged to receive the signal and provide an input to electronic signal processor.

Abstract translation: 用于检测能量范围为1keV至100MeV的光子的检测器单元包括适于与入射的X射线光子相互作用并使电子从其发射的至少两个转换器层，适于与电子相互作用的至少一个放大器 从转换器发射并且适于产生多个二次电子和光子，其表示与X射线光子的入射注量成正比的信号;将检测器连接到电场发生器的连接器，该电场产生器为检测器中的二次电子提供电漂移场 以及传感器装置，被布置成接收信号并向电子信号处理器提供输入。

公开(公告)号：US06452190B1

公开(公告)日：2002-09-17

申请号：US09621523

申请日：2000-07-21

Applicant: Hendrik Johannes Jan Bolk ,  Klaus Bethke

Inventor： Hendrik Johannes Jan Bolk ,  Klaus Bethke

IPC: G01T118

CPC classification number: G01N23/20 ,  G01T1/185 ,  H01J47/02 ,  H01J2237/24415

Abstract: In order to obtain suitable absorption of the radiation to be detected in the detector gas of a radiation detector, in particular an X-ray detector, the detector is constructed in such a way that the radiation enters the detector parallel to the counting wire, thus offering an absorption path having any desired length. According to the invention, a number of avalanche chambers 50 is arranged adjacent the absorption chamber 46, said avalanche chambers having a comparatively small cross-section. The avalanche chambers are provided with grids 54 in such a way that charge multiplication by the grid voltage can occur only in the avalanche chamber. Due to the comparatively small cross-section of the avalanche chambers, broadening of the current impulses to be detected is prevented. Moreover, the comparatively long absorption chamber offers good radiation absorption and the presence of several avalanche chambers enables a favourable detection rate.

Abstract translation: 为了在放射线检测器，特别是X射线检测器的检测器气体中获得对待检测的辐射的适当吸收，检测器被构造成使得辐射与计数线平行地进入检测器，因此 提供具有任何期望长度的吸收路径。 根据本发明，多个雪崩室50邻近吸收室46设置，所述雪崩室具有较小的横截面。 雪崩室设置有栅格54，使得电网电压的充电只能在雪崩室中发生。 由于雪崩室的相对较小的横截面，防止了要检测的电流脉冲的变宽。 此外，相对较长的吸收室提供良好的辐射吸收，并且几个雪崩室的存在使得能够获得良好的检测率。

公开(公告)号：US06404114B1

公开(公告)日：2002-06-11

申请号：US09446361

申请日：2000-03-14

Applicant: Alan Paul Jeavons

Inventor： Alan Paul Jeavons

IPC: H01J6130

CPC classification number: H01J47/02

Abstract: An imaging system module comprising: a pair of high density avalanche chamber converters (11, 12) each including alternate layers (15, 16) of conducting and non-conducting material and an array of holes (17) extending through the alternate layers (15, 16), the first converter (11) having conducting elements (18) extending parallel to each other to form a first cathode on or adjacent to a face of the converter (11) and the second converter (11) having conducting elements (19) extending parallel to each other in a direction orthogonal to the conducting elements (18) to form a second cathode on or adjacent to a face of the second converter (12), and an anode (21) formed by parallel conducting elements between the first and second cathodes (18, 19). Radiation incident upon either converter (11, 12) produces an avalanche of charged particles which are attracted towards the anode (21) and the incidence of a charged particle on the anode (21) causes a current pulse in both the first and second cathodes (18, 19).

Abstract translation: 一种成像系统模块，包括：一对高密度雪崩室转换器（11,12），每个转换器包括导电和非导电材料的交替层（15,16）和延伸穿过交替层（15）的孔阵列（17） ，16），所述第一转换器（11）具有彼此平行延伸的导电元件（18），以在所述转换器（11）的表面上或与所述转换器（11）的表面相邻形成第一阴极，所述第二转换器（11）具有导电元件（19） ）在与所述导电元件（18）正交的方向上彼此平行地延伸以在所述第二转换器（12）的表面上或邻近所述第二转换器（12）的表面上形成第二阴极;以及阳极（21），所述阳极由所述第一 和第二阴极（18,19）。 入射到任一转换器（11,12）上的辐射产生被吸引到阳极（21）的带电粒子的雪崩并且阳极（21）上的带电粒子的入射在第一和第二阴极（...）中引起电流脉冲 18，19）。