公开(公告)号：US3560746A

公开(公告)日：1971-02-02

申请号：US3560746D

申请日：1968-08-14

Applicant: COMMISSARIAT ENERGIE ATOMIQUE

Inventor： LANSIART ALAIN ,  LELOUP JEAN ,  LEQUAIS JEAN

IPC: H01J47/10 ,  G01T1/16 ,  H01J39/26

CPC classification number: H01J47/10

Abstract: The invention proposes a particle detector comprising a gasfilled chamber in which are disposed an anode and a cathode separated by a grid, these three electrodes being parallel and the gap between the grid and the cathode being of sufficient width for the type of incident radiation. The filling gas is selected in order to ensure that a high proportion of the Beta radiation which constitutes the incident particles or which is induced by incident particles at the cathode and/or within said gap loses the larger part of its energy by the usual ionization process which results in the release of electrons, said detector further comprising means for establishing between the anode and the grid a potential difference which is slightly smaller than the breakdown voltage and between the cathode and the grid a voltage for collecting said electrons towards the grid-anode gap, said collection voltage being sufficiently low and the mesh of the grid being sufficiently large to ensure that only a negligible proportion of electrons is collected by the grid as said electrons pass through said grid.

公开(公告)号：US3828184A

公开(公告)日：1974-08-06

申请号：US23272172

申请日：1972-03-08

Applicant: LUPTON J

Inventor： LUPTON J

IPC: G01N27/66 ,  G01T7/02 ,  H01J41/08 ,  H01J39/26

CPC classification number: H01J41/08 ,  G01N27/66 ,  G01T7/02

Abstract: An Ionization Detector analyses a flowing fluid stream for a specific gas or gases. The recirculation of gases between electrodes is eliminated, and the gas between the anode and cathode is not restrained. The anode is made of a porous, electrically conductive material and the cathode is a beta emitting foil positioned adjacent to, but physically and electrically isolated from, the anode. The detector will function with or without an added cell voltage. The response of the detector to the water of aqueous solutions is so limited in duration that a characteristic response from organic substances can be obtained even when the substance is introduced in an aqueous solution to the chromatographic column.

Abstract translation: 电离检测器分析特定气体或气体的流动流。 消除电极之间气体的再循环，并且不抑制阳极和阴极之间的气体。 阳极由多孔的导电材料制成，阴极是位于阳极附近但物理上和电气上隔离的β发射箔。 检测器将在添加或不添加单元电压的情况下运行。 检测器对水溶液的水的响应在持续时间上受到限制，即使当物质被引入到色谱柱的水溶液中时，也可以获得有机物质的特征响应。

公开(公告)号：US3787746A

公开(公告)日：1974-01-22

申请号：US3787746D

申请日：1973-05-11

Applicant: ATOMIC ENERGY COMMISSION

Inventor： ATAC M

IPC: H01J47/08 ,  H01J39/26

CPC classification number: H01J47/08

Abstract: Operation of detectors of charged particles such as wire counters and Geiger-Muller tubes is improved by filling the counters with a quenching-gas mixture of argon, isobutane and methylchloroform.

Abstract translation: 通过用氩气，异丁烷和甲基氯仿的淬火 - 气体混合物填充计数器来改善带电粒子的检测器的操作，例如电线计数器和盖革 - 穆勒管。

公开(公告)号：US3676682A

公开(公告)日：1972-07-11

申请号：US3676682D

申请日：1968-10-30

Applicant: FRED W FALK

Inventor： FALK FRED W

IPC: H01J47/00 ,  H01J47/02 ,  G01T1/18 ,  H01J39/26

CPC classification number: H01J47/02

Abstract: An ionization chamber for measuring absorbed radiation is disclosed, the chamber including a housing which incorporates an anode, a cathode, and a space charge electrode. The anode comprises a conducting plate which has a plurality of protruding needle points with each of the needle points and the conducting plate being at the same electrical potential. The space charge electrode has a plurality of holes therein and is physically displaced from the anode with the holes of the space charge electrode being in registry with the needle points of the anode. The potential of the space charge electrode is less than that of the anode itself.

Abstract translation: 公开了一种用于测量吸收的辐射的电离室，该腔室包括结合有阳极，阴极和空间电荷电极的壳体。 阳极包括导电板，该导电板具有多个突出的针尖，每个针尖和导电板处于相同的电位。 空间电荷电极在其中具有多个孔，并且物理上偏离阳极，空间电荷电极的孔与阳极的针尖对准。 空间电荷电极的电位小于阳极本身的电位。

公开(公告)号：US3649834A

公开(公告)日：1972-03-14

申请号：US3649834D

申请日：1970-10-06

Applicant: ATOMIC ENERGY COMMISSION

Inventor： RANDOLPH HENRY W

IPC: G01T7/02 ,  H01J47/06 ,  G01T1/18 ,  G01N23/12 ,  H01J39/26

CPC classification number: G01T7/02 ,  H01J47/06

Abstract: A radiation detector for high resolution measurement of energy spectra in flowing gas samples has a first electrode, a parallel second electrode of opposite polarity, and a detection chamber between the two electrodes. An integral pulse or stream of sample gas is passed in laminar flow through the detection chamber. A nonradioactive gas flows around the stream of sample gas to prevent contact and contamination of either electrode with radioactive material, as well as to absorb the radiation from the sample gas for detection.

Abstract translation: 用于流动气体样品中能量谱的高分辨率测量的辐射检测器具有第一电极，相反极性的平行的第二电极和两个电极之间的检测室。 一个整体的脉冲或样品气流通过层流通过检测室。 非放射性气体围绕样品气体流动，以防止任一电极与放射性物质的接触和污染，以及吸收来自样品气体的辐射用于检测。

公开(公告)号：US3638059A

公开(公告)日：1972-01-25

申请号：US3638059D

申请日：1970-04-27

Applicant: US NAVY

Inventor： TAYLOR RANDOLPH G

IPC: H01J40/04 ,  H01J40/06 ,  H01J39/26 ,  H01J39/00

CPC classification number: H01J40/04 ,  H01J40/06

Abstract: This disclosure is directed to an extreme ultraviolet radiation photometer which includes a special type window and cathode suitable for permitting radiation to penetrate the window which reacts with the cathode to produce electrons which are attracted to the window and produces a current flow which is measured to represent the radiation detected.

Abstract translation: 本公开涉及一种极紫外辐射光度计，其包括适于允许辐射穿透窗口的特殊类型的窗口和阴极，其与阴极反应以产生被窗口吸引并产生电流，该电流被测量以表示 检测到辐射。

公开(公告)号：US3430086A

公开(公告)日：1969-02-25

申请号：US3430086D

申请日：1965-02-24

Applicant: PHILIPS CORP

Inventor： MACKINTOSH IAN WILLIAM

IPC: H01J47/08 ,  H01J39/26 ,  G01T1/18 ,  H01J39/30

CPC classification number: H01J47/08

公开(公告)号：US4075527A

公开(公告)日：1978-02-21

申请号：US727260

申请日：1976-09-27

Applicant: Harold R. Cummings

Inventor： Harold R. Cummings

IPC: G01N23/04 ,  A61B6/03 ,  G01T1/185 ,  H01J1/88 ,  H01J47/02 ,  B32B31/20 ,  H01J1/90 ,  H01J39/26

CPC classification number: H01J47/02 ,  H01J1/88

Abstract: An improved x-ray or other ionizing radiation detector comprises an array of adjacent cells comprised of alternately disposed oppositely polarized electrodes and guard electrodes and insulators between them. Means are provided for maintaining uniform and accurate dimensions between electrodes and the overall length of the array.

公开(公告)号：US3934165A

公开(公告)日：1976-01-20

申请号：US518115

申请日：1974-10-25

Applicant: John F. Meekins

Inventor： John F. Meekins

IPC: H01J47/06 ,  H01J39/26 ,  H01J39/29

CPC classification number: H01J47/06

Abstract: An improved gas-filled proportional counter which includes a resistor netk connected between the anode and cathode at the ends of the counter in order to eliminate "end effects".

Abstract translation: 一种改进的充气比例计数器，其包括在计数器端部连接在阳极和阴极之间的电阻器网络，以消除“最终效应”。

公开(公告)号：US3609435A

公开(公告)日：1971-09-28

申请号：US3609435D

申请日：1968-10-30

Applicant: RANDOLPH G TAYLOR ,  LEWIS JR JOHN

Inventor： TAYLOR RANDOLPH G ,  LEWIS JOHN JR

IPC: H01J47/02 ,  H01J39/26 ,  H01J39/28

CPC classification number: H01J47/02

Abstract: This invention is directed to an ionization chamber having a rectangular housing including therein spaced anode plates with a centrally located cathode. This ionization chamber has a fast response for detection of ionizing radiation in various bands from 0.1 to 60A depending on the gas filling and window material (for example 0.5-3.0A uses a 50-mil-thick beryllium window and 2 atm, of krypton) with a fast recovery. Fast response is brought about by the relationship of the cathode to the anodes in which the spacing and electric field is uniform along the length of and on opposite sides of the cathode. The chamber is filled with a gaseous filling selected from one of the following, nitrogen, carbon tetrachloride, xenon, nitrogen, krypton or argon and is provided with a removable beryllium, Mylar or aluminum window through which the ionizing radiation enters the chamber.