公开(公告)号：EP0400415A3

公开(公告)日：1991-03-27

申请号：EP90109437.5

申请日：1990-05-18

Applicant: DIGITAL DIAGNOSTIC CORPORATION

Inventor： Kearns, Edward G. ,  Roessler, Norbert ,  van Cauter, Gustaaf ,  Ukraincik, Kreso

IPC: H01J47/08 ,  G01T1/29

CPC classification number: G01T1/2935 ,  H01J47/08

Abstract: For simultaneously measuring the radioactivity of multiple samples arranged in a predetermined array of x rows and y columns, a fixed array of radiation counters arranged in the same array of x rows and y columns so that one of the counters is aligned with each of the multiple samples. Each of the counters has a pair of spaced electrodes; an electrical voltage source connected to the electrodes of all the counters for applying the same voltage across the electrodes of each of the radiation counters in the array; and sensing means connected to the electrodes of each of the radiation counters for independently detecting pulses of electrical current produced by ionization of the gas between the respective pairs of electrodes of each of the radiation counters. For measuring low-energy radiation, the radiation counters are windowless, a flow of ionizable gas is supplied to the counters, and the same flow rate of the ionizable gas is maintained through each of the radiation counters in the array. Preferably the radiation counters are formed in a metal plate that provides shielding to minimize "cross talk" between adjacent samples.

公开(公告)号：EP0007842B1

公开(公告)日：1984-08-08

申请号：EP79400472.1

申请日：1979-07-09

Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE Etablissement de Caractère Scientifique Technique et Industriel

Inventor： Comby, Georges ,  Mangeot, Philippe

IPC: H01J47/08

CPC classification number: H01J47/08

公开(公告)号：FI129757B

公开(公告)日：2022-08-15

申请号：FI20206044

申请日：2020-10-22

Applicant: FENNO AURUM OY

Inventor： SIPILÄ HEIKKI

IPC: G01T7/12 ,  B60H1/22 ,  F23D14/72 ,  G01J1/42 ,  G08B17/12 ,  H01J47/02 ,  H01J47/06 ,  H01J47/08

Abstract: The invention relates to an ultraviolet flame detector (100). The ultraviolet flame detector comprises: a housing (102) having an opening (103) at a first end (101a) of the housing (102), a window structure (104) arranged to cover the opening (103) of the housing (102), a photocathode (106) arranged to a second end (101b) of the housing (102) so that the photocathode (106) is facing inside the housing (102), and an anode wire (108) arranged between the window structure (104) and the photocathode (106). The anode wire (108) is configured to travel transversally across the housing (102). The ultraviolet flame detector (102) is filled with a gas.

公开(公告)号：FI20206044A1

公开(公告)日：2022-04-23

申请号：FI20206044

申请日：2020-10-22

Applicant: FENNO AURUM OY

Inventor： SIPILÄ HEIKKI

IPC: G01T7/12 ,  B60H1/22 ,  F23D14/72 ,  G01J1/42 ,  G08B17/12 ,  H01J47/02 ,  H01J47/06 ,  H01J47/08

Abstract: The invention relates to an ultraviolet flame detector (100). The ultraviolet flame detector comprises: a housing (102) having an opening (103) at a first end (101a) of the housing (102), a window structure (104) arranged to cover the opening (103) of the housing (102), a photocathode (106) arranged to a second end (101b) of the housing (102) so that the photocathode (106) is facing inside the housing (102), and an anode wire (108) arranged between the window structure (104) and the photocathode (106). The anode wire (108) is configured to travel transversally across the housing (102). The ultraviolet flame detector (102) is filled with a gas.

公开(公告)号：CA2751755A1

公开(公告)日：2010-08-19

申请号：CA2751755

申请日：2010-02-11

Applicant: HALLIBURTON ENERGY SERV INC

Inventor： HERRERA ADAN HERNANDEZ ,  DUDLEY JAMES H ,  FINKE MICHAEL DEWAYNE ,  GOLLA CHRISTOPHER ALLEN

IPC: G01V5/04 ,  G01T1/18 ,  G01V13/00 ,  H01J47/08

Abstract: A measurement system for collecting data. In some embodiments, the measurement system includes a tubular suspended downhole, the tubular having an outer surface and a flowbore extending therethrough, the flowbore conveying a fluid, a first recess formed in the outer surface of the tubular, a first detection system mounted in the first recess, a second recess formed in the outer surface of the tubular, and a second detection system mounted in the second recess. The second recess is offset relative to the first recess by at least one of an axial distance and a circumferential distance. The first detection system is operable to measure a portion of the data, and the second detection system operable to measure another portion of the data.

公开(公告)号：DE69727184D1

公开(公告)日：2004-02-19

申请号：DE69727184

申请日：1997-09-26

Applicant: HAMAMATSU PHOTONICS KK

Inventor： WARASHINA HIDENAGA ,  SHIMAZU YUJI

IPC: H01J47/02 ,  H01J47/08

Abstract: An ultraviolet detector comprises a metal tubular member which hermetically encloses an anode and a cathode therein and is filled with a discharged gas introduced therein from a metal exhaust tube. After the anode and the cathode are enclosed within the tubular member, the ultraviolet detector can be made without being subjected to any glass fusing process. Accordingly, the inside of the sealed vessel V1 can be prevented from being contaminated with fluorine, whereby the ultraviolet detector with stable characteristics can be provided.

公开(公告)号：RU2152104C1

公开(公告)日：2000-06-27

申请号：RU98109407

申请日：1998-05-15

Applicant: VOJSKOVAJA CHAST 75360

Inventor： MAKLASHEVSKIJ V JA ,  CHELNOKOV V B ,  PARNASOV V S

IPC: H01J47/08 ,  G01N23/04 ,  G01T1/18

Abstract: X-ray introscopy, non-destructive tests of materials and articles in mechanical engineering, aircraft industry, power engineering, luggage inspection of passengers. SUBSTANCE: technical result of invention lies in increased quality of generated optical image with magnification of dimensions of its working field. In agreement with invention working surface of transducer is irradiated through glass plate with opaque film electrode by pulse X-ray flux from X-ray gear. As result latent electron-ion image of test object is formed in gas space of transducer. After supply of high-voltage power pulse to electrodes of chamber synchronized by pulses of X-ray radiation gas discharge develops and is accompanied by ultraviolet radiation which is converted to visible image in luminophor. EFFECT: increased quality of generated optical image. 2 dwg

公开(公告)号：AT149740T

公开(公告)日：1997-03-15

申请号：AT92918777

申请日：1992-08-28

Applicant: DU PONT

Inventor： ANDERSON CHARLES WILLIAM ,  NAGY JOHN WALTER ,  SMITH LEONARD ROBERT

IPC: G01T1/18 ,  H01J47/08

公开(公告)号：PL166783B1

公开(公告)日：1995-06-30

申请号：PL29278891

申请日：1991-12-13

Applicant: SZCZEPANSKI MIROSLAW ,  DROSZCZ JANUSZ

Inventor： SZCZEPANSKI MIROSLAW ,  DROSZCZ JANUSZ

IPC: G01T1/18 ,  H01J47/08

公开(公告)号：NO175076B

公开(公告)日：1994-05-16

申请号：NO900654

申请日：1990-02-09

Applicant: SEFORS AB

Inventor： CLAUSSEN LENNART

IPC: G01J20060101 ,  G01J5/28 ,  G01T1/18 ,  G08B17/12 ,  H01J47/08