ES2175729T3 - Sistema de imagineria que utiliza un convertidor con camara de avalancha de alta densidad. - Google Patents

Sistema de imagineria que utiliza un convertidor con camara de avalancha de alta densidad.

Info

Publication number
ES2175729T3
ES2175729T3 ES98930916T ES98930916T ES2175729T3 ES 2175729 T3 ES2175729 T3 ES 2175729T3 ES 98930916 T ES98930916 T ES 98930916T ES 98930916 T ES98930916 T ES 98930916T ES 2175729 T3 ES2175729 T3 ES 2175729T3
Authority
ES
Spain
Prior art keywords
converter
conducting elements
anode
conducting
avalanch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES98930916T
Other languages
English (en)
Inventor
Alan Paul Jeavons
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oxford Positron Systems Ltd
Original Assignee
Oxford Positron Systems Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oxford Positron Systems Ltd filed Critical Oxford Positron Systems Ltd
Application granted granted Critical
Publication of ES2175729T3 publication Critical patent/ES2175729T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J47/00—Tubes for determining the presence, intensity, density or energy of radiation or particles
    • H01J47/02—Ionisation chambers

Landscapes

  • Measurement Of Radiation (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
  • Nuclear Medicine (AREA)
  • Light Receiving Elements (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Vehicle Body Suspensions (AREA)
  • Closed-Circuit Television Systems (AREA)

Abstract

Módulo de sistema de imaginería que comprende: un par de convertidores de cámara de avalancha de alta densidad (11, 12) incluyendo cada convertidor una serie de capas alternadas (15, 16) de material conductor y no conductor y un conjunto de aberturas pasantes, paralelas (17) que se extienden a través de dicha serie de capas alternadas (15, 16), teniendo un primer convertidor (11) del par una pluralidad de elementos conductores (18) que se extienden en general paralelamente entre sí en una primera dirección para formar un primer cátodo en/o adyacente a una cara del primer convertidor (11) y teniendo el segundo convertidor (12) del par una pluralidad de elementos conductores (19) que se extienden generalmente en relación paralela entre sí en una dirección generalmente ortogonal a la primera dirección para formar un segundo cátodo en/o adyacente a una cara del segundo convertidor (12), y un ánodo (21) formado por una serie de elementos conductores generalmente paralelos, posicionados entre el primer y segundo cátodos (18, 19), siendo la disposición tal que la radiación incidente sobre uno u otro convertidor (11, 12) produce una avalancha de partículas cargadas que son atraídas hacia el citado ánodo (21) y la incidencia de una partícula cargada sobre el ánodo (21) produce un impulso de corriente tanto en el primero como en el segundo cátodos (18, 19).
ES98930916T 1997-06-20 1998-06-19 Sistema de imagineria que utiliza un convertidor con camara de avalancha de alta densidad. Expired - Lifetime ES2175729T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9712927A GB2322231B (en) 1997-06-20 1997-06-20 An imaging system

Publications (1)

Publication Number Publication Date
ES2175729T3 true ES2175729T3 (es) 2002-11-16

Family

ID=10814564

Family Applications (1)

Application Number Title Priority Date Filing Date
ES98930916T Expired - Lifetime ES2175729T3 (es) 1997-06-20 1998-06-19 Sistema de imagineria que utiliza un convertidor con camara de avalancha de alta densidad.

Country Status (11)

Country Link
US (1) US6404114B1 (es)
EP (1) EP0990172B1 (es)
JP (1) JP3728700B2 (es)
AT (1) ATE215234T1 (es)
AU (1) AU738662B2 (es)
CA (1) CA2294271C (es)
DE (1) DE69804452T2 (es)
DK (1) DK0990172T3 (es)
ES (1) ES2175729T3 (es)
GB (1) GB2322231B (es)
WO (1) WO1998059262A1 (es)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8816332D0 (en) * 1988-07-08 1988-08-10 Oxford Positron Systems Ltd Method & apparatus for quantitative autoradiography analysis
US5434468A (en) * 1989-07-06 1995-07-18 Oxford Positron Systems Limited Radiographic detector with perforated cathode

Also Published As

Publication number Publication date
GB2322231B (en) 1999-04-14
JP3728700B2 (ja) 2005-12-21
JP2002506524A (ja) 2002-02-26
CA2294271A1 (en) 1998-12-30
ATE215234T1 (de) 2002-04-15
CA2294271C (en) 2012-01-17
AU738662B2 (en) 2001-09-20
EP0990172B1 (en) 2002-03-27
GB2322231A (en) 1998-08-19
GB9712927D0 (en) 1997-08-20
DK0990172T3 (da) 2002-07-29
US6404114B1 (en) 2002-06-11
DE69804452D1 (de) 2002-05-02
EP0990172A1 (en) 2000-04-05
DE69804452T2 (de) 2002-10-17
WO1998059262A1 (en) 1998-12-30
AU8119398A (en) 1999-01-04

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