公开(公告)号：US3626189A

公开(公告)日：1971-12-07

申请号：US3626189D

申请日：1968-12-31

Applicant: NASA

Inventor： BERG OTTO E

IPC: G01T1/29 ,  H01J47/10 ,  H01J49/40 ,  G01T1/18

CPC classification number: G01T1/29 ,  H01J47/10

Abstract: A sensor for detecting and measuring the energy, velocity and direction of travel of a cosmic dust particle, comprises an array of electrodes. Some of the electrodes are arranged in columns and spaced in close proximity to other electrodes that are disposed in rows. Together the columns and rows define a plurality of sectors through which a cosmic particle may traverse. Each electrode includes electrically biased conductor layers supported on an optically transparent matrix. Ions and electrons from an impacting cosmic dust particle compose an ionized plasma for collection on the electrically biased conductors, creating an electrical output pulse which may be amplified. A second array of electrodes in columns and grids in rows is included in spaced relationship from the first array. An impacting cosmic dust particle on the second array produces an electrical output pulse in the same manner as described. Should a particle penetrate the first array and impact upon the second spaced array, a pair of time spaced electrical outputs will result, the time spacing of the pulses being proportional to the velocity of the particle. The direction of the particle''s travel, and thereby its origin in space is determined by the alignment of respective sectors traversed by the particle. Behind the second array is placed a microphone plate which arrests further penetration of the particle. The microphone output amplitude is an indication of the momentum of a particle. At least one of the secottors in each of the arrays is bounded by an epoxy coating rendering it impervious to plasma collection. Accordingly, a pulse output originated from the impervious sector gives an indication of noise or other interference collected by the sensor. Additionally, a second microphone of small area is segregated from the first-described microphone and is provided with a separate output. Accordingly, electrical signals from the small microphone which are disproportionate with respect to the small area of the second microphone are indicative of interfering noise as well as particle impact.

公开(公告)号：US3612880A

公开(公告)日：1971-10-12

申请号：US3612880D

申请日：1968-12-23

Applicant: ALAIN LANSIART ,  JEAN LELOUP ,  JEAN PIERRE MORUCCI ,  GEORGES ROUX

Inventor： LANSIART ALAIN ,  LELOUP JEAN ,  MORUCCI JEAN-PIERRE ,  ROUX GEORGES

IPC: H01J47/10 ,  G01T1/205

CPC classification number: H01J47/10

Abstract: A spark quenching device for a three-electrode spark chamber in which a discharge device is associated in parallel with the intermediate-electrode/anode space of the spark chamber and a trigger device is controlled by the spark chamber current.

公开(公告)号：US3601612A

公开(公告)日：1971-08-24

申请号：US3601612D

申请日：1969-08-22

Applicant: ATOMIC ENERGY COMMISSION

Inventor： PEREZ-MENDEZ VICTOR

IPC: H01J47/10 ,  G01T5/00

CPC classification number: H01J47/10

Abstract: A wire spark chamber having magnetostrictive readout. One embodiment thereof is for particular use with low energy gamma rays, X-rays, or neutral particles whose presence is detected by secondary particles produced in converters placed in or around the wire planes of the chamber. Another embodiment has a very large and uniformly sensitive detecting area by means of auxiliary conducting planes which serve to charge the chamber capacity with a low impedance transmission-line characteristic. The embodiment for use with low energy gamma, X-ray or neutral particles has utilization in the field of medical diagnostics while the large chamber embodiment provides the capability of detecting multiple tracks with uniform high efficiency, thus fulfilling a long looked for need in the field of wire spark chambers.

公开(公告)号：US3359421A

公开(公告)日：1967-12-19

申请号：US49911865

申请日：1965-10-20

Applicant: VICTOR PEREZ-MENDEZ ,  PFAB JAMES M

Inventor： VICTOR PEREZ-MENDEZ ,  PFAB JAMES M

IPC: H01J47/10

CPC classification number: H01J47/10

公开(公告)号：US3254220A

公开(公告)日：1966-05-31

申请号：US25413263

申请日：1963-01-28

Applicant: FAIRCHILD HILLER CORP

Inventor： RICHARD MADEY

IPC: G01T1/36 ,  H01J47/10

CPC classification number: G01T1/36 ,  H01J47/10

公开(公告)号：US3222560A

公开(公告)日：1965-12-07

申请号：US15358961

申请日：1961-11-20

Applicant: HERBERT FRIEDMAN ,  CHUBB TALBOT A

Inventor： HERBERT FRIEDMAN ,  CHUBB TALBOT A

IPC: H01J47/10

CPC classification number: H01J47/10

公开(公告)号：US2907886A

公开(公告)日：1959-10-06

申请号：US55093155

申请日：1955-12-05

Applicant: IBM

Inventor： WILLARD DENNIS D ,  MALMROS GUSTAV V A

IPC: H01J29/10 ,  H01J47/10

CPC classification number: H01J29/10 ,  H01J47/10

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。