Multianode cylindrical proportional counter for high count rates
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.
- DOE Contract Number:
- W-7405-ENG-26
- Assignee:
- Dept. of Energy
- OSTI ID:
- 6604127
- Country of Publication:
- United States
- Language:
- English
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Multianode cylindrical proportional counter for high count rates
Design and properties of a multianode, cylindrical proportional counter for position sensing at high count rates
Related Subjects
PROPORTIONAL COUNTERS
SPECIFICATIONS
ANODES
CATHODES
COUNTING RATES
CYLINDRICAL CONFIGURATION
CONFIGURATION
ELECTRODES
MEASURING INSTRUMENTS
RADIATION DETECTORS
440101* - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments