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公开(公告)号：US5742061A
公开(公告)日：1998-04-21
申请号：US676222
申请日：1996-08-19
Applicant: Marc Lemonnier , Thierry Claude Bucaille , Joel Robert Charlet , Michel Bordessoule , Fran.cedilla.ois Bartol , Stephan Megtert
Inventor： Marc Lemonnier , Thierry Claude Bucaille , Joel Robert Charlet , Michel Bordessoule , Fran.cedilla.ois Bartol , Stephan Megtert
CPC classification number: H01J47/06
Abstract: An ionizing radiation detector having an enclosure filled with a rare gas within which is located a proportional counter. An absorption zone is formed between the counter and the upper wall of the enclosure in which radiation is ionized. The counter has at least one anode and at least one cathode which are parallel to one another and separated by an insulating material layer. The cathode and the insulating material layer have at least one opening in which there is a substantially uniform electric field and which constitutes a multiplication zone for electrons which result from the ionization of the radiation.
Abstract translation: PCT No.PCT / FR95 / 01548 Sec。 371日期：1996年8月19日 102（e）日期1996年8月19日PCT提交1995年11月23日PCT公布。 WO96 / 17373 PCT出版物 日期1996年6月6日具有填充有稀有气体的外壳的电离辐射检测器，其中位于比例计数器。 吸收区形成在外壳的计数器与上壁之间，辐射被电离。 计数器具有至少一个阳极和至少一个阴极，它们彼此平行并被绝缘材料层隔开。 阴极和绝缘材料层具有至少一个开口，其中存在基本上均匀的电场，并且构成由辐射电离产生的电子的乘积区。
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52.发明授权
公开(公告)号：US5604783A
公开(公告)日：1997-02-18
申请号：US609208
申请日：1996-03-01
Applicant: Georges Charpak
Inventor： Georges Charpak
CPC classification number: H01J47/062 , G01T1/2935 , H01J47/008
Abstract: The invention relates to a medical imaging device using X or gamma ionizing radiation. It comprises a source (S) of radiation in a divergent beam, and a longitudinal slit (F) delivering a sheet-form beam in a plane containing the slit (F). A detection module (1) is provided, which comprises a drift chamber (12) and a multiwire chamber which are filled with a gas. The chambers comprise, in a direction orthogonal to the plane containing the slit (F), the drift space (12) for the electrons, comprising a cathode electrode (11), a converter (121), a proportional multiplier anode (13) for generating multiplied electrons and corresponding ions, and a second cathode electrode (14), placed in the vicinity of the multiplier anode (13). The multiplier anode (13) and the second cathode electrode (14) consist of conductor elements extending in two parallel planes, along substantially orthogonal directions, in order to permit two-dimensional localization of the electrons in this plane.
Abstract translation: 本发明涉及使用X或γ电离辐射的医学成像装置。 它包括发散光束中的辐射源（S）和在包含狭缝（F）的平面中传送片状光束的纵向狭缝（F）。 提供一种检测模块（1），其包括填充有气体的漂移室（12）和多线室。 这些腔室在垂直于包含狭缝（F）的平面的方向上包括用于电子的漂移空间（12），包括阴极电极（11），转换器（121），比例乘法器阳极（13） 产生倍增电子和相应的离子，以及放置在乘法器阳极（13）附近的第二阴极电极（14）。 乘法器阳极（13）和第二阴极电极（14）由沿着大致正交的方向在两个平行平面中延伸的导体元件组成，以允许电子在该平面中的二维定位。
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公开(公告)号：US4999501A
公开(公告)日：1991-03-12
申请号：US276838
申请日：1988-11-28
Applicant: Jeffrey L. Lacy
Inventor： Jeffrey L. Lacy
CPC classification number: G01T1/2935 , H01J47/062
Abstract: An improved multiwire proportional counter camera having particular utility in the field of clinical nuclear medicine imaging. The detector utilizes direct coupled, low impedance, high speed delay lines, the segments of which are capacitor-inductor networks. A pile-up rejection test is provided to reject confused events otherwise caused by multiple ionization events occuring during the readout window.
Abstract translation: 一种改进的多线比例计数器相机，在临床核医学成像领域具有特殊用途。 该检测器采用直接耦合，低阻抗，高速度的延迟线路，其线路段是电容 - 电感网络。 提供堆积排除测试以排除由读出窗口内发生的多个电离事件引起的混淆事件。
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公开(公告)号：US4827135A
公开(公告)日：1989-05-02
申请号：US27651
申请日：1987-03-19
Applicant: Robert W. Hendricks , Jack W. Wilson
Inventor： Robert W. Hendricks , Jack W. Wilson
CPC classification number: H01J47/062
Abstract: A high speed curved position sensitive porportional counter detector for use in x-ray diffraction, the detection of 5-20 keV photons and the like. The detector employs a planar anode assembly of a plurality of parallel metallic wires. This anode assembly is supported between two cathode planes, with at least one of these cathode planes having a serpentine resistive path in the form of a meander having legs generally perpendicular to the anode wires. This meander is produced by special microelectronic fabrication techniques whereby the meander "wire" fans outwardly at the cathode ends to produce the curved aspect of the detector, and the legs of the meander are small in cross-section and very closely spaced whereby a spatial resolution of about 50 .mu.m can be achieved. All of the other performance characteristics are about as good or better than conventional position sensitive proportional counter type detectors. Count rates of up to 40,000 counts per second with 0.5 .mu.s shaping time constants are achieved.
Abstract translation: 用于X射线衍射的高速弯曲位置敏感的人口计数器检测器，5-20keV光子的检测等。 检测器采用多个平行金属线的平面阳极组件。 该阳极组件被支撑在两个阴极平面之间，其中这些阴极平面中的至少一个具有蛇形形式的蛇形电阻路径，其具有大致垂直于阳极线的支脚。 这种曲折是通过特殊的微电子制造技术产生的，由此蜿蜒的“线”在阴极端向外风扇以产生检测器的弯曲方面，并且曲折的腿部横截面小并且非常紧密地间隔开，从而空间分辨率 可达到约50亩。 所有其他性能特征与传统的位置敏感比例计数器类型检测器相同或更好。 达到每秒高达40,000计数的计数速率，成型时间常数为0.5μs。
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公开(公告)号：US4608511A
公开(公告)日：1986-08-26
申请号：US570116
申请日：1984-01-12
Applicant: David Barclay , Peter H. Burgess
Inventor： David Barclay , Peter H. Burgess
CPC classification number: G21K1/10
Abstract: A gamma ray energy filter for a improving the uniformity of response of a Geiger-Muller tube comprises only two spaced filter bodies. To improve the uniformity of the energy response, the two filter bodies consist of a lead/tin alloy containing substantially less than 95% but not substantially less than 40%, and suitably 50-60%, of lead. To improve the polar response particularly in directions away from the normal to the longitudinal axis of the tube, and at quite low energies, adjacent edges of the filter bodies are inclined to the longitudinal axis over a majority of their radial thickness at less than 45.degree., and circumferentially-spaced apertures with axes inclined to the longitudinal axis are provided in at least one of the bodies.
Abstract translation: 用于改善Geiger-Müller管的响应均匀性的γ射线能量过滤器仅包括两个间隔开的过滤体。 为了提高能量响应的均匀性，两个过滤器主体由含有基本上小于95％但不小于40％，优选为50-60％的铅的铅/锡合金组成。 为了改善极地响应，特别是在离开管的纵向轴线的方向上，并且在相当低的能量下，过滤体的相邻边缘在其径向厚度的大部分在小于45°的情况下相对于纵向轴线倾斜 并且在至少一个主体中设置具有相对于纵向轴线倾斜的轴的周向间隔开的孔。
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Patent Agency Ranking
公开(公告)号：US4571196A
公开(公告)日：1986-02-18
申请号：US575825
申请日：1984-02-01
Applicant: Heikki J. Sipila , Marja-Leena Jarvinen
Inventor： Heikki J. Sipila , Marja-Leena Jarvinen
CPC classification number: H01J47/005
Abstract: The invention concerns a way to prolong the service life of proportional counters, there being added to the gas mixture consisting of a rare gas and a hydrocarbon, serving as gas filling in the counters, hydrogen gas in the amount of 0.05-5.0% by weight, preferably 0.1-2.0% by weight. In addition, the hydrogen gas may in part at least be deuterium.
Abstract translation: 本发明涉及一种延长比例计数器使用寿命的方法，将添加到由稀有气体和碳氢化合物组成的气体混合物，作为填充在计数器中的气体，氢气的量为0.05-5.0重量％ ，优选为0.1〜2.0重量％。 此外，氢气部分至少可以是氘。
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公开(公告)号：US4317038A
公开(公告)日：1982-02-23
申请号：US133094
申请日：1980-03-24
Applicant: Georges Charpak
Inventor： Georges Charpak
CPC classification number: H01J47/062
Abstract: The spatial distribution of mono-energetic x-rays from a point source, is determined by a device which comprises a gas filled enclosure having a flat radiation entrance window. Flat electrodes establish an electrical field of such amplitude that there occurs conversion of said radiation into photo electrons and avalanche electron multiplication resulting in delivery of a burst or pulse of electrons per conversion whose height is an increasing function of the travel path of the electrons avalanche from the location of the conversion event to the planar outlet electrode. A detector located in a second portion of the enclosure receives the pulse of electrons and determines the coordinates and the pulse height of the pulse.
Abstract translation: 来自点源的单能X射线的空间分布由包括具有平坦辐射入口窗口的充气外壳的装置确定。 扁平电极建立一个这样的幅度的电场，使得发生所述辐射转换为光电子和雪崩电子倍增，从而导致每转换发射一个脉冲或电子脉冲，其高度是电子雪崩的行进路径的增加函数 转换事件到平面出口电极的位置。 位于外壳第二部分的检测器接收电子脉冲并确定脉冲的坐标和脉冲高度。
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公开(公告)号：US4158774A
公开(公告)日：1979-06-19
申请号：US750117
申请日：1976-12-13
Applicant: Arthur J. Stokes
Inventor： Arthur J. Stokes
CPC classification number: H01J47/06
Abstract: A radiation detector of the gas-filled counter tube type which has a reduced count rate drift. An electrically conductive coating is applied to the interior insulating surfaces in proximity to the anode wire of a gas-filled counter tube structure having an axially disposed wire anode. The electrically conductive coating is maintained at the same electrical potential as the anode and accumulated charges in proximity to the anode are thereby eliminated. Alternately, the electrically conductive coating applied to the interior insulating surfaces in proximity to the anode may be maintained at the same electrical potential as the outer conducting cylinder in order to eliminate accumulated charges. The elimination of accumulated charges in proximity to the anode significantly reduces count rate drift and hence improves detector performance.
Abstract translation: 具有减少的计数速率漂移的气体填充计数管型辐射探测器。 将导电涂层施加到具有轴向设置的线阳极的气体填充对流管结构的阳极线附近的内部绝缘表面。 导电涂层保持在与阳极相同的电位，从而消除了邻近阳极的累积电荷。 或者，施加到阳极附近的内部绝缘表面的导电涂层可以保持在与外导电圆筒相同的电位，以消除积累的电荷。 消除靠近阳极的累积电荷显着降低了计数速率漂移，从而提高了检测器性能。
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公开(公告)号：US3975638A
公开(公告)日：1976-08-17
申请号：US518992
申请日：1974-10-29
Applicant: Claude Grunberg , Jean Le Devehat
Inventor： Claude Grunberg , Jean Le Devehat
CPC classification number: H01J47/06
Abstract: An array of needle point anodes has its points uniformly spaced from a sheet cathode. Ionization occurring in an ionizable medium causes electron multiplication in the high electric field of the nearest anode point. A semiconductor solid may be the ionizable medium, instead of the usual gaseous or liquified rare gas. The pulse count rate is individually measured for each anode, or for each cathode segment when the anodes are connected together and a segmented cathode is used, to locate the trajectory and measure the flux of ionizing particles.
Abstract translation: 针尖阳极的阵列具有与片状阴极均匀间隔的点。 在可电离介质中发生的电离导致最近阳极点的高电场中的电子倍增。 半导体固体可以是可电离介质，而不是通常的气态或液化稀有气体。 当阳极连接在一起并使用分段阴极时，对于每个阳极或每个阴极段分别测量脉冲计数率，以定位轨迹并测量电离粒子的通量。
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60.发明授权
公开(公告)号：US3911279A
公开(公告)日：1975-10-07
申请号：US36113473
申请日：1973-05-17
Applicant: BALL BROTHERS RES CORP
Inventor： GILLAND JERRY R , EMMING JAN G
CPC classification number: H01J47/06
Abstract: A position sensitive multiwire proportional counter with integral delay line including a support carrying a plurality of anode wires and at least one cathode wire spaced in a predetermined relationship from the anode wires within the active volume of the counter to form an integral delay line. The counter is filled with a gas which ionizes upon interaction with ionizing radiation, the ionization of the gas being enhanced by the positive anode, such that an electrical charge is thereby induced in the cathode wire. Sensing of elapsed time between receipt of the induced charge at opposing ends of the cathode wire is utilized to determine the desired radiation positional data.
Abstract translation: 一种具有整体延迟线的位置敏感多线比例计数器，其包括承载多个阳极线的支撑件和至少一个与计数器的有效体积内的阳极线以预定关系隔开的阴极线，以形成整体延迟线。 计数器填充有与电离辐射相互离子化的气体，气体的电离由正极增强，从而在阴极线中引起电荷。 感测在阴极线的相对端处的感应电荷的接收之间的经过时间用于确定期望的辐射位置数据。
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