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Title: Multianode cylindrical proportional counter for high count rates

Abstract

A cylindrical, multiple-anode proportional counter is provided for counting of low-energy photons (< 60 keV) at count rates of greater than 10/sup 5/ counts/sec. A gas-filled proportional counter cylinder forming an outer cathode is provided with a central coaxially disposed inner cathode and a plurality of anode wires disposed in a cylindrical array in coaxial alignment with and between the inner and outer cathodes to form a virtual cylindrical anode coaxial with the inner and outer cathodes. The virtual cylindrical anode configuration improves the electron drift velocity by providing a more uniform field strength throughout the counter gas volume, thus decreasing the electron collection time following the detection of an ionizing event. This avoids pulse pile-up and coincidence losses at these high count rates. Conventional RC position encoding detection circuitry may be employed to extract the spatial information from the counter anodes.

Inventors:
;
Issue Date:
OSTI Identifier:
6604127
Assignee:
Dept. of Energy TIC; ERA-06-016031; EDB-81-047310
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; PROPORTIONAL COUNTERS; SPECIFICATIONS; ANODES; CATHODES; COUNTING RATES; CYLINDRICAL CONFIGURATION; CONFIGURATION; ELECTRODES; MEASURING INSTRUMENTS; RADIATION DETECTORS 440101* -- Radiation Instrumentation-- General Detectors or Monitors & Radiometric Instruments

Citation Formats

Hanson, J.A., and Kopp, M.K. Multianode cylindrical proportional counter for high count rates. United States: N. p., 1980. Web.
Hanson, J.A., & Kopp, M.K. Multianode cylindrical proportional counter for high count rates. United States.
Hanson, J.A., and Kopp, M.K. Fri . "Multianode cylindrical proportional counter for high count rates". United States.
@article{osti_6604127,
title = {Multianode cylindrical proportional counter for high count rates},
author = {Hanson, J.A. and Kopp, M.K.},
abstractNote = {A cylindrical, multiple-anode proportional counter is provided for counting of low-energy photons (< 60 keV) at count rates of greater than 10/sup 5/ counts/sec. A gas-filled proportional counter cylinder forming an outer cathode is provided with a central coaxially disposed inner cathode and a plurality of anode wires disposed in a cylindrical array in coaxial alignment with and between the inner and outer cathodes to form a virtual cylindrical anode coaxial with the inner and outer cathodes. The virtual cylindrical anode configuration improves the electron drift velocity by providing a more uniform field strength throughout the counter gas volume, thus decreasing the electron collection time following the detection of an ionizing event. This avoids pulse pile-up and coincidence losses at these high count rates. Conventional RC position encoding detection circuitry may be employed to extract the spatial information from the counter anodes.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1980},
month = {5}
}