Title :
A parallel-plate resistive-anode gaseous detector for X-ray imaging
Author :
Khazins, D.M. ; Becker, B.L. ; Diawara, Y. ; Durst, R.D. ; He, B.B. ; Medved, S.A. ; Sedov, V. ; Thorson, T.A.
Author_Institution :
Bruker AXS Inc., Madison, WI, USA
fDate :
6/1/2004 12:00:00 AM
Abstract :
A novel gaseous detector, based on parallel-plate gas amplification with a resistive anode and remote readout electrode, is described. The detector is significantly less prone to discharges than other gaseous wireless detectors and unique in its ability to achieve high gain at high counting rates. A local counting rate >5×105 counts/mm2-s at a gas gain of up to 105 has been achieved in a 14×14 cm2 area detector for diffraction applications. The detector radiation hardness is characterized by the anode accumulated charge >100 Coul/cm2. The detector is sealed and its regassing period is estimated to be 5-10 yr. The operating characteristics of the new detector, its spatial resolution, and linearity are described and preliminary X-ray diffraction data are presented.
Keywords :
X-ray detection; X-ray diffraction; X-ray imaging; photon counting; position sensitive particle detectors; radiation hardening; streamer chambers; X-ray detectors; X-ray diffraction data; X-ray imaging; anode accumulated charge; counting rates; detector radiation hardness; diffraction applications; gas gain; gaseous wireless detectors; operating characteristics; parallel-plate gas amplification; parallel-plate resistive-anode gaseous detector; photon counting; regassing period; remote readout electrode; sealed gaseous detectors; spatial resolution; Anodes; Electrodes; Insulation; Radiation detectors; Sparks; Strips; X-ray detection; X-ray detectors; X-ray diffraction; X-ray imaging; Photon counting; X-ray detectors; X-ray diffraction; radiation hardness; sealed gaseous detectors;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2004.829543
