公开(公告)号：US3758806A

公开(公告)日：1973-09-11

申请号：US3758806D

申请日：1972-01-28

Applicant: AGA AB

Inventor： BOSTROM B

IPC: H01J47/10 ,  H01J1/90 ,  H01J1/46 ,  H01J19/44

CPC classification number: H01J47/10

Abstract: Sealed electrode mounting, in a spark discharge chamber, comprising a plane cathode and, parallel thereto, two latticeshaped electrodes constituting an auxiliary electrode and anode enclosed in a space forming the spark discharge chamber, the electrodes being along its entire circumference in electrically conductive connection with an electrically conductive material surrounding the periphery of the respective electrodes and extending through sealing means, which run along said electrical material, and out from the spark discharge chamber.

Abstract translation: 密封电极安装在火花放电室中，包括平面阴极，并且与其平行地形成两个格栅状电极，其构成辅助电极和阳极，所述辅助电极和阳极封闭在形成火花放电室的空间中，电极沿其整个圆周导电 与围绕相应电极的周边的导电材料连接并延伸穿过沿着电气材料延伸并从火花放电室出来的密封装置。

公开(公告)号：US3568060A

公开(公告)日：1971-03-02

申请号：US3568060D

申请日：1967-10-18

Applicant: SCIENCE ACCESSORIES CORP

Inventor： HOWELLS JOSEPH A

IPC: H01J47/10 ,  H03K5/1532 ,  G04F9/00

CPC classification number: H03K5/1532 ,  H01J47/10

Abstract: A device for digitally indicating the center of a pulse employing a pulse counter and a pulse generator having a fixed generating rate. Upon receipt of an initial pulse a first flipflop opens a first gating circuit and passes pulses to the counter. A second flip-flop receives the leading edge of a subsequent pulse to turn off the first gate and opens a second gate. The second gate in turn allows pulses at one-half the fixed generating rate to accumulate in the counter. The trailing edge of the second pulse changes the state of the second flip-flop and turns off the second gate. The accumulated count is now representative of the measure from the initial timing pulse to the center of the second pulse. A further flip-flop, upon receipt of a further pulse, changes state and insures that the gating circuits do not open to permit further counting. The two level counting is accomplished by a pulse frequency dividing stage connected to the pulse source, or, alternatively, by using the output of the first counter stage.

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：US3412246A

公开(公告)日：1968-11-19

申请号：US44512765

申请日：1965-04-02

Applicant: NORMAN H. HORWITZ ,  JAMES E. LOFSTROM

Inventor： HORWITZ NORMAN H ,  LOFSTROM JAMES E

IPC: G01T1/164 ,  G01T1/29 ,  G21K1/02 ,  H01J47/00 ,  H01J47/10

CPC classification number: H01J47/00 ,  A61B6/4258 ,  G01T1/1641 ,  G01T1/2935 ,  G21K1/025 ,  H01J47/10

公开(公告)号：US2905829A

公开(公告)日：1959-09-22

申请号：US48400255

申请日：1955-01-25

Applicant: WESTINGHOUSE ELECTRIC CORP

Inventor： WEBB EDWARD L

IPC: H01J31/50 ,  H01J47/00 ,  H01J47/10 ,  H04N5/32

CPC classification number: H04N5/32 ,  H01J31/505 ,  H01J31/506 ,  H01J47/00 ,  H01J47/10

公开(公告)号：US5308987A

公开(公告)日：1994-05-03

申请号：US11637

申请日：1993-02-01

Applicant: Craig R. Wuest ,  Richard M. Bionta ,  Elden Ables

Inventor： Craig R. Wuest ,  Richard M. Bionta ,  Elden Ables

IPC: G01T1/29 ,  H01J47/02 ,  H01J47/10

CPC classification number: H01J47/02 ,  G01T1/2935

Abstract: An x-ray detector which provides for the conversion of x-ray photons into photoelectrons and subsequent amplification of these photoelectrons through the generation of electron avalanches in a thin gas-filled region subject to a high electric potential. The detector comprises a cathode (photocathode) and an anode separated by the thin, gas-filled region. The cathode may comprise a substrate, such a beryllium, coated with a layer of high atomic number material, such as gold, while the anode can be a single conducting plane of material, such as gold, or a plane of resistive material, such as chromium/silicon monoxide, or multiple areas of conductive or resistive material, mounted on a substrate composed of glass, plastic or ceramic. The charge collected from each electron avalanche by the anode is passed through processing electronics to a point of use, such as an oscilloscope.

Abstract translation: 一种X射线检测器，其提供将X射线光子转换成光电子，并且随后通过在具有高电位的薄气体填充区域中产生电子雪崩而随后放大这些光电子。 检测器包括阴极（光电阴极）和由薄的气体填充区分隔的阳极。 阴极可以包括涂覆有诸如金的高原子序列材料层的基底，诸如铍，而阳极可以是诸如金的单一导电平面或电阻材料的平面，例如 铬/一氧化硅或导电或电阻材料的多个区域，安装在由玻璃，塑料或陶瓷组成的基底上。 由阳极从每个电子雪崩收集的电荷通过处理电子器件传递到诸如示波器的使用点。

公开(公告)号：US3717766A

公开(公告)日：1973-02-20

申请号：US3717766D

申请日：1970-10-22

Applicant: COMMISSARIAT ENERGIE ATOMIQUE

Inventor： ALLARD G ,  LANSIART A

IPC: H01J47/14 ,  A61B6/00 ,  G01T5/12 ,  H01J47/10 ,  G01T1/18

CPC classification number: H01J47/10 ,  A61B6/4258

Abstract: A DEVICE FOR DETECTING AND VISUALIZING THE SPATIAL DISTRIBUTION OF RADIATION COMPRISES THREE PARALLEL ELECTRODES DISPOSED WITHIN AN ENCLOSURE WHICH CONTAINS AN IONIZABLE GAS MIXTURE AND CONSISTING OF A GRID BETWEEN A CATHODE WHICH IS TRANSPARENT TO SAID RADIATION AND AN ANODE. THE GRID DEFINES WITH THE CATHODE A DETECTION SPACE IN WHICH THE INCIDENT RADIATION CAUSES IONIZATION OF THE GAS MIXTURE AND DEFINES WITH THE ANODE A SPACE FOR THE MULTIPLICATION OF ELECTRONS WHICH ARE PRODUCED IN THE DETECTION SPACE AND PASS THROUGH THE GRID, THEREBY INITIATING THE PRODUCTION OF SPARKS. THE DETECTING DEVICE FURTHER COMPRISES AN EXTERNAL CIRCUIT WHICH PROVIDES A CONNECTION BETWEEN THE ANODE AND THE GRID AND INCLUDES MEANS WHICH ARE TRIGGERED BY THE SPARKS PRODUCED WITHIN THE MULTIPLICATION SPACE IN ORDER TO SHORT-CIRCUIT SAID MULTIPLICATION SPACE TEMPORARILY AT THE TIME OF APPEARANCE OF EACH SPARK. THE ANODE IS ESSENTIALLY PROVIDED WITH TWO CONDUCTIVE COATINGS WHICH ARE ELECTRICALLY CONNECTED TO EACH OTHER RESPECTIVELY ON THE TWO FACES OF AN OPTICALLY TRANSPARENT SUPPORT PLATE. ONE OF THE TWO COATINGS HAS HIGH SURFACE RESISTANCE AND LIMITS THE ELECTRON MULTIPLICATION SPACE WHILST THE OTHER COATING HAS LOW SURFACE RESISTANCE.

D R A W I N G

公开(公告)号：US3714689A

公开(公告)日：1973-02-06

申请号：US3714689D

申请日：1970-12-14

Applicant: SCIENCE ACCESSORIES CORP

Inventor： WHETSTONE A ,  FINE S ,  PHILLIPS S

IPC: H01J47/10 ,  H01J9/06 ,  H01J9/48

CPC classification number: H01J47/10

Abstract: An apparatus for producing curved or flat wire arrays for use in wire spark chamber devices having a wire spool holding means and wire feeding device; tensioning means; wire winding and spacing device; and a device for stretching and shaping the array. The wire is fed over tensioning pulleys about a threaded rod onto a wire winding and spacing device which comprises a support cylinder. The wound wires are attached to lucite strips mounted on the cylinder and then cut and removed to form a loose wire array. The wire array is then clamped in the stretching and shaping device which stretches the wires and forms the surface to the desired curvature.

Abstract translation: 一种用于生产具有线轴保持装置和送丝装置的线火花室装置中的弯曲或扁平线阵列的装置; 张力手段 线绕和间距装置; 以及用于拉伸和成形阵列的装置。 电线通过围绕螺纹杆的张紧滑轮进给到包括支撑筒的线绕组和间隔装置上。 卷绕的线连接到安装在圆柱体上的透明条，然后切割和移除以形成松散的线阵列。 然后将线阵列夹紧在拉伸和成形装置中，拉伸和成形装置拉伸导线并将表面形成期望的曲率。

公开(公告)号：US3622787A

公开(公告)日：1971-11-23

申请号：US3622787D

申请日：1969-06-02

Applicant: AGA AB

Inventor： TIMMER FLORIS ,  ALPHEN A D

IPC: G01T1/29 ,  H01J47/10 ,  G01T1/16

CPC classification number: H01J47/10 ,  A61B6/4258

Abstract: A device for making visible and/or registering the flux density of gamma-quanta or the two-dimensional density distribution of beta-particles includes a gas and vapor-filled spark discharge chamber with a flat cathode, a flat, grid-form anode and a gridform auxiliary electrode arranged therein. The cathode is positioned parallel to and spaced from the anode and the auxiliary electrode is located therebetween. A high-voltage source is connected to the electrodes and an integrating recorder registers the pattern of the spark discharges between the auxiliary electrode and the anode such as caused by entering radiation. The auxiliary electrode is galvanically connected to the cathode and is spaced therefrom a distance such that the electron cloud which triggers the spark discharge is not attenuated by electron attachment in the space between cathode and auxiliary electrode.

公开(公告)号：US3574927A

公开(公告)日：1971-04-13

申请号：US3574927D

申请日：1969-01-29

Applicant: SCIENCE ACCESSORIES CORP

Inventor： WHETSTONE ALBERT L

IPC: H01J47/10 ,  H01Q15/14 ,  H01S4/00

CPC classification number: H01Q15/142 ,  H01J47/10 ,  Y10T29/49002 ,  Y10T29/49069 ,  Y10T29/49082 ,  Y10T29/49801 ,  Y10T29/4998

Abstract: A method of constructing a low-tension wire array including the steps of arraying wires on an expandable frame expanding the wires past their elastic limit, and releasing the frame tension until each wire hangs in catenary. The wires are then placed onto an epoxied sheet and the ends cut.