Gaseous-based radiation detector and apparatus for radiography
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United States of America Patent
Stats
-
Jul 29, 2003
Grant Date -
Jan 10, 2002
app pub date -
Jan 17, 2001
filing date -
Nov 19, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A detector for detection of ionizing radiation comprises a cathode; an anode; an ionizable gas arranged between these electrodes; a radiation entrance arranged such that ionizing radiation can enter and ionize the ionizable gas; and a readout arrangement. A voltage across the electrodes causes electrons created during ionization of the gas to drift towards the anode, where the readout arrangement detects them. To reduce the risk of occurrence of sparks, and/or to reduce the energy in occurring sparks, one of the cathode and anode has at least the surface layer facing the other electrode made of a material having a resistivity of at least 5.times.10.sup.-8 .OMEGA.m.
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Cited Art Landscape
Patent Citation Ranking
- 7 Citation Count
- G01N Class
- 3.17 % this patent is cited more than
- 22 Age
