公开(公告)号：US4527064A

公开(公告)日：1985-07-02

申请号：US510388

申请日：1983-07-05

Applicant: David F. Anderson

Inventor： David F. Anderson

IPC: H01J47/26 ,  H01J47/10

CPC classification number: H01J47/26

Abstract: A method and apparatus for detecting and imaging alpha particles sources is described. A conducting coated high voltage electrode (1) and a tungsten wire grid (2) constitute a diode configuration discharge generator for electrons dislodged from atoms or molecules located in between these electrodes when struck by alpha particles from a source (3) to be quantitatively or qualitatively analyzed. A thin polyester film window (4) allows the alpha particles to pass into the gas enclosure and the combination of the glass electrode, grid and window is light transparent such that the details of the source which is imaged with high resolution and sensitivity by the sparks produced can be observed visually as well. The source can be viewed directly, electronically counted or integrated over time using photographic methods. A significant increase in sensitivity over other alpha particle detectors is observed, and the device has very low sensitivity to gamma or beta emissions which might otherwise appear as noise on the alpha particle signal.

Abstract translation: 描述了用于检测和成像α粒子源的方法和装置。 导电涂覆的高压电极（1）和钨丝网格（2）构成二极管配置放电发生器，用于当源自源（3）的α粒子被定量或定量地撞击时从位于这些电极之间的原子或分子移出的电子 定性分析。 薄聚酯薄膜窗（4）允许α粒子进入气体外壳，玻璃电极，栅格和窗口的组合是透明的，使得以高分辨率和灵敏度被火花成像的源的细节 也可以观察到所产生的。 可以使用摄影方法直接查看，电子计数或随着时间的推移进行整合。 观察到其他α粒子检测器的灵敏度显着增加，并且该装置对于γ或β发射具有非常低的灵敏度，否则这可能表现为α粒子信号上的噪声。

公开(公告)号：US3803404A

公开(公告)日：1974-04-09

申请号：US17186771

申请日：1971-08-16

Applicant: AGA AB

Inventor： ASARD P

IPC: G01T1/29 ,  H01J47/10 ,  H01J3/22

CPC classification number: G01T1/2935 ,  H01J47/10

Abstract: Radiochromatographic procedure for analysing of a substance having a gamma-radiating isotope added to it using a spark chamber with a cathode surface, a grid and an anode, a sample of said substance being laid on a chromatographic plate, placed on the cathode surface and used as electron emitting cathode, said electrons being composed of emitted beta-radiation from gamma decay and of Auger- and conversion electrons, the isotope atoms which are bound in the substance or possible free isotope atoms, which migrated from the substance, being detected by means of the spark chamber so as to establish the distribution and the concentration of the isotope atoms in the substance.

公开(公告)号：US3770960A

公开(公告)日：1973-11-06

申请号：US3770960D

申请日：1972-06-26

Applicant: GEN ELECTRIC

Inventor： WEBSTER H

IPC: G01T1/29 ,  H01J17/49 ,  H01J47/10 ,  G01T1/16 ,  H01J39/00

CPC classification number: H01J17/492 ,  G01T1/2935 ,  H01J47/10

Abstract: An improved x-ray display panel is disclosed wherein the x-rays forming the pattern to be displayed induce ''''ionizing events'''' over the surface of the panel. The photon producing discharges as a result of these events make up a visible image of the x-ray pattern.

Abstract translation: 公开了一种改进的x射线显示面板，其中形成待显示图案的x射线在面板的表面上引起“电离事件”。 作为这些事件的结果的光子产生放电构成了X射线图案的可视图像。

公开(公告)号：US3723788A

公开(公告)日：1973-03-27

申请号：US3723788D

申请日：1970-09-15

Applicant: TOKYO SHIBAURA ELECTRIC CO

Inventor： GOTO E

IPC: H01J47/10 ,  H01J39/26

CPC classification number: H01J47/10

Abstract: A spark chamber apparatus for detecting radiations which essentially comprises a directly sealed spark chamber enclosing an electric sparking gas at normal pressure and thin electrode layers covered over the boundary zone thereof with nonelectroconductive glaze. The sealing of spark chamber by the use of glazy substance and the covering of the perimetric portions of electrodes are simultaneously performed by a dipping process.

Abstract translation: 一种用于检测辐射的火花室装置，其基本上包括在正常压力下包围电火花气体的直接密封的火花室和在其边界区域上覆盖有非导电釉的薄电极层。

公开(公告)号：US3614443A

公开(公告)日：1971-10-19

申请号：US3614443D

申请日：1968-08-16

Applicant: SMITH KLINE FRENCH LAB

Inventor： HESSELBO TORBEN ,  GROVES ARTHUR DEREK GEORGE

IPC: H01J47/10 ,  G01T1/16

CPC classification number: H01J47/10

Abstract: A gastight, crossed wire spark chamber having the major part of each of the walls thereof being formed from a transparent material and further having associated therewith manual or mechanical means for effecting movement of the chamber with respect to an externally mounted radioactive pattern in a plane substantially parallel to the planes of the electrodes disposed within the chamber.

公开(公告)号：US3461293A

公开(公告)日：1969-08-12

申请号：US3461293D

申请日：1967-12-21

Applicant: NORMAN H HORWITZ ,  LOFSTROM JAMES E

Inventor： HORWITZ NORMAN H

IPC: H01J47/10 ,  G01T1/16 ,  G01N21/38 ,  H01J39/28

CPC classification number: H01J47/10

公开(公告)号：US3418474A

公开(公告)日：1968-12-24

申请号：US50700565

申请日：1965-11-09

Applicant: BAIRD ATOMIC INC

Inventor： PHILIP SPERGEL ,  DI ROCCO JAMES V ,  GRENIER RAYMOND P

IPC: G01N30/64 ,  G01T1/29 ,  H01J47/08 ,  H01J47/10

CPC classification number: G01N30/64 ,  G01T1/2935 ,  H01J47/08 ,  H01J47/10

公开(公告)号：US3373283A

公开(公告)日：1968-03-12

申请号：US37232464

申请日：1964-06-03

Applicant: COMMISSARIAT ENERGIE ATOMIQUE

Inventor： ALAIN LANSIART ,  JEAN LELOUP ,  JEAN LEQUAIS

IPC: G01T5/00 ,  H01J47/10

CPC classification number: G01T5/00 ,  H01J47/10

公开(公告)号：US2259451A

公开(公告)日：1941-10-21

申请号：US35569640

申请日：1940-09-06

Applicant: SLAYTER ELECTRONIC CORP

Inventor： BENNETT WILLARD H

IPC: H01J19/68 ,  H01J47/10

CPC classification number: H01J19/68 ,  H01J47/10

公开(公告)号：US4766318A

公开(公告)日：1988-08-23

申请号：US866915

申请日：1986-05-27

Applicant: Steven Adler-Golden ,  Lawrence S. Bernstein ,  Fritz Bien

Inventor： Steven Adler-Golden ,  Lawrence S. Bernstein ,  Fritz Bien

IPC: G01J3/28 ,  G01J3/36 ,  G01N21/67 ,  G01N21/69 ,  H01J47/10

CPC classification number: G01N21/69 ,  G01J2003/2869 ,  G01J3/36 ,  G01N21/67

Abstract: A spark discharge trace element detection system is provided which includes a spark chamber including a pair of electrodes for receiving a sample of gas to be analyzed at no greater than atmospheric pressure. A voltage is provided across the electrodes for generating a spark in the sample. The intensity of the emitted radiation in at least one primary selected narrow band of the radiation is detected. Each primary band corresponds to an element to be detected in the gas. The intensity of the emission in each detected primary band is integrated during the afterglow time interval of the spark emission and a signal representative of the integrated intensity of the emission in each selected primary bond is utilized to determine the concentration of the corresponding element in the gas.

Abstract translation: 提供火花放电痕量元素检测系统，其包括火花室，其包括一对电极，用于在不大于大气压下接收待分析气体的样品。 在电极之间提供电压以在样品中产生火花。 检测在辐射的至少一个主要选择的窄带中发射的辐射的强度。 每个主带对应于在气体中待检测的元件。 在火花发射的余辉时间间隔期间，在每个检测到的主带中的发射强度被积分，并且使用表示每个所选一次键中的发射的积分强度的信号来确定气体中相应元素的浓度 。