Gas proportional detectors with interpolating cathode pad readout for high track multiplicities
New techniques for position encoding in very high rate particle and photon detectors will be required in experiments planned for future particle accelerators such as the Superconducting Super Collider and new, high intensity, synchrotron sources. Studies of two interpolating cathode pad'' readout systems are described in this thesis. They are well suited for high multiplicity, two dimensional unambiguous position sensitive detection of minimum ionizing particles and heavy ions as well as detection of x-rays at high counting rates. One of the readout systems uses subdivided rows of pads interconnected by resistive strips as the cathode of a multiwire proportional chamber (MWPC). A position resolution of less than 100 {mu}m rms, for 5.4 keV x-rays, and differential non-linearity of 12% have been achieved. Low mass ({approximately}0.6% of a radiation length) detector construction techniques have been developed. The second readout system uses rows of chevron shaped cathode pads to perform geometrical charge division. Position resolution (FWHM) of about 1% of the readout spacing and differential non-linearity of 10% for 5.4 keV x-rays have been achieved. A review of other interpolating methods is included. Low mass cathode construction techniques are described. In conclusion, applications and future developments are discussed. 54 refs.
- Research Organization:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 5868411
- Report Number(s):
- BNL-47055; ON: DE92007189
- Resource Relation:
- Other Information: Thesis (Ph.D.). Thesis submitted to University of Pittsburgh
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
MULTIWIRE PROPORTIONAL CHAMBERS
COMPARATIVE EVALUATIONS
CATHODES
DESIGN
HEAVY IONS
OPERATION
PERFORMANCE TESTING
POSITION SENSITIVE DETECTORS
SPATIAL RESOLUTION
X-RAY DETECTION
CHARGED PARTICLES
DETECTION
ELECTRODES
EVALUATION
IONS
MEASURING INSTRUMENTS
PROPORTIONAL COUNTERS
RADIATION DETECTION
RADIATION DETECTORS
RESOLUTION
TESTING
440104* - Radiation Instrumentation- High Energy Physics Instrumentation