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
- 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 = {Fri May 23 00:00:00 EDT 1980},
month = {Fri May 23 00:00:00 EDT 1980}
}