SE0000438L - Detector for detecting ionizing radiation, apparatus for use in radiography and method for detecting ionizing radiation - Google Patents

Detector for detecting ionizing radiation, apparatus for use in radiography and method for detecting ionizing radiation

Info

Publication number
SE0000438L
SE0000438L SE0000438A SE0000438A SE0000438L SE 0000438 L SE0000438 L SE 0000438L SE 0000438 A SE0000438 A SE 0000438A SE 0000438 A SE0000438 A SE 0000438A SE 0000438 L SE0000438 L SE 0000438L
Authority
SE
Sweden
Prior art keywords
anode
hole
cathode
ionizing radiation
electric field
Prior art date
Application number
SE0000438A
Other languages
Swedish (sv)
Other versions
SE0000438D0 (en
SE516126C2 (en
Inventor
Tom Francke
Vladimir Peskov
Original Assignee
Xcounter Ab
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 Xcounter Ab filed Critical Xcounter Ab
Priority to SE0000438A priority Critical patent/SE516126C2/en
Publication of SE0000438D0 publication Critical patent/SE0000438D0/en
Priority to US09/563,333 priority patent/US6365902B1/en
Priority to CNB01804168XA priority patent/CN1237350C/en
Priority to KR1020027009138A priority patent/KR100682079B1/en
Priority to JP2001558755A priority patent/JP2003522954A/en
Priority to EP01904722A priority patent/EP1254382A1/en
Priority to CA002396820A priority patent/CA2396820A1/en
Priority to PCT/SE2001/000234 priority patent/WO2001059479A1/en
Priority to AU32549/01A priority patent/AU779257B2/en
Publication of SE0000438L publication Critical patent/SE0000438L/en
Publication of SE516126C2 publication Critical patent/SE516126C2/en

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
    • H01J47/026—Gas flow ionisation chambers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/16—Measuring radiation intensity
    • G01T1/185—Measuring radiation intensity with ionisation chamber arrangements

Abstract

An ionizing radiation detector comprises a focusing electrode arranged between an avalanche cathode and anode, and having a hole with an area smaller than the cathode hole but larger than the anode hole. An ionizing radiation detector comprises a chamber filled with ionizable medium, first electrode arrangement(s), and read-out element arrangement(s) (15). The first electrode arrangement is provided in the chamber and includes an electron avalanche amplification unit (17) having avalanche cathode(s) (18) and anode(s) (4), between which a voltage is applied for creating an electric field for avalanche amplification. The read-out element arrangement detects electron avalanches. The avalanche cathode has hole(s) with a top view area larger than that of associated anode. The anode is centered w.r.t the hole. A focusing electrode (19) is arranged between the cathode and anode, and has a hole with an area smaller than the cathode hole but larger than the anode hole. An Independent claim is also included for a method of detecting ionizing radiation by: (a) forming in each of at least one region including at least one avalanche cathode and anode a concentrated electric field for causing electron avalanches; (b) detecting the electron avalanches with read-out elements; (c) focusing the electrons with at least one anode; (d) subjecting the electrons to a first electric field in a conversion and drift volume, where the first electric field forces the electrons to enter at least one region with a concentrated electric field; and (e) focusing the electrons with at least one focusing electrode.
SE0000438A 1999-11-19 2000-02-11 Ionizing radiation detector for radiography, comprises focusing electrode arranged between avalanche cathode and anode SE516126C2 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
SE0000438A SE516126C2 (en) 2000-02-11 2000-02-11 Ionizing radiation detector for radiography, comprises focusing electrode arranged between avalanche cathode and anode
US09/563,333 US6365902B1 (en) 1999-11-19 2000-05-03 Radiation detector, an apparatus for use in radiography and a method for detecting ionizing radiation
AU32549/01A AU779257B2 (en) 2000-02-11 2001-02-07 Radiation detector, an apparatus for use in radiography and a method for detecting ionizing radiation
JP2001558755A JP2003522954A (en) 2000-02-11 2001-02-07 Radiation detector, apparatus used for radiography, and method for detecting ionized radiation
KR1020027009138A KR100682079B1 (en) 2000-02-11 2001-02-07 Radiation detector, an apparatus for use in radiography and a method for detecting ionizing radiation
CNB01804168XA CN1237350C (en) 2000-02-11 2001-02-07 Radiation detector, apparatus for use in radiography and method for detecting ionizing radiation
EP01904722A EP1254382A1 (en) 2000-02-11 2001-02-07 Radiation detector, an apparatus for use in radiography and a method for detecting ionizing radiation
CA002396820A CA2396820A1 (en) 2000-02-11 2001-02-07 Radiation detector, an apparatus for use in radiography and a method for detecting ionizing radiation
PCT/SE2001/000234 WO2001059479A1 (en) 2000-02-11 2001-02-07 Radiation detector, an apparatus for use in radiography and a method for detecting ionizing radiation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0000438A SE516126C2 (en) 2000-02-11 2000-02-11 Ionizing radiation detector for radiography, comprises focusing electrode arranged between avalanche cathode and anode

Publications (3)

Publication Number Publication Date
SE0000438D0 SE0000438D0 (en) 2000-02-11
SE0000438L true SE0000438L (en) 2001-08-12
SE516126C2 SE516126C2 (en) 2001-11-19

Family

ID=20278416

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0000438A SE516126C2 (en) 1999-11-19 2000-02-11 Ionizing radiation detector for radiography, comprises focusing electrode arranged between avalanche cathode and anode

Country Status (1)

Country Link
SE (1) SE516126C2 (en)

Also Published As

Publication number Publication date
SE0000438D0 (en) 2000-02-11
SE516126C2 (en) 2001-11-19

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