Patent ID: 6600804
Filing Date: 2003-07-29
Classification: G01N,G01T,H01J

Abstract:
A detector for detection of ionizing radiation comprising:a cathode arrangement and an anode arrangement between which a voltage is applicable; a space capable of being filled with an ionizable gas and arranged at least partly between said first cathode and said first anode; a radiation entrance arranged such that ionizing radiation can enter said space between said first cathode and said first anode, for ionizing the ionizable gas; and a readout arrangement; wherein said voltage is applicable for drifting electrons created during ionization of said ionizable gas towards the anode arrangement; and said readout arrangement is arranged for detection of the electrons drifted towards the first anode, wherein at least one of the cathode and anode arrangements has at least the surface layer facing the other one of the cathode and anode arrangements made of a material having a resistivity of at least 5Ã—10âˆ’8 &OHgr;m.