Position-sensitive gas proportional chambers

Journal Article · Wed Feb 01 04:00:00 EST 1978 · IEEE Trans. Nucl. Sci.; (United States)

DOI:https://doi.org/10.1109/TNS.1978.4329293· OSTI ID:6386808

Morris, C L; Thiessen, H A; Hoffmann, G W

A number of multiwire, position-sensitive, gas proportional chambers have been constructed which use fast delay line (2.5 ns/cm) readouts to provide trajectory position and angle information for particles near the focal planes of the Energetic Pion Channel and Spectrometer (EPICS) and High Resolution Spectrometer (HRS) at the Clinton P. Anderson Meson Physics Facility (LAMPF). These chambers are two dimensional with anode wires in one direction and cathode wires in the other direction. When operated as ordinary delay line chambers, position resolution of 0.5 mm (FWHM) can be obtained in the cathode direction for short cathode wire lengths. If the drift information from the anodes is used, resolution of less than 0.35 mm (FWHM) can be obtained in this direction. The chambers can be operated at count rates of 5 x 10/sup 5/ pulses/sec with live times of greater than 90%. Efficiencies, measured at lower counting rates, are typically greater than 99%.

• Research Organization: Los Alamos Scientific Lab., NM
• OSTI ID: 6386808
• Journal Information: IEEE Trans. Nucl. Sci.; (United States), Journal Name: IEEE Trans. Nucl. Sci.; (United States) Vol. NS-25:1; ISSN IETNA
• Country of Publication: United States
• Language: English

Related Subjects

440101* -- Radiation Instrumentation-- General Detectors or Monitors & Radiometric Instruments
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
COMPUTER CALCULATIONS
CONSTRUCTION
DELAY CIRCUITS
DESIGN
DISCRIMINATORS
DRIFT CHAMBERS
ELECTRONIC CIRCUITS
MEASURING INSTRUMENTS
MULTIWIRE PROPORTIONAL CHAMBERS
PROPORTIONAL COUNTERS
PULSE RISE TIME
RADIATION DETECTORS
READOUT SYSTEMS
RESOLUTION
TIMING PROPERTIES