Simulation of optical configurations and signal processing methods in Anger-type neutron-position scintillation detector

Conference · Sun Jan 01 00:00:00 EST 1984

OSTI ID:6608970

Roche, C T; Strauss, M G; Brenner, R

The spatial linearity and resolution of Anger-type neutron-position scintillation detectors are studied using a semi-empirical model. Detector optics with either an air gap or optical grease between the scintillator and the dispersive light guide are considered. Three signal processing methods which truncate signals from PMT's distant from the scintillation are compared with the linear resistive weighting method. Air gap optics yields a 15% improvement in spatial resolution and 50% reduction in differential and integral nonlinearity relative to grease coupled optics, using linear processing. Using signal truncation instead of linear processing improves the resolution 15-20% for the air gap and 20-30% for the grease coupling case. Thus, the initial discrepancy in the resolution between the two optics nearly vanished, however the linearity of the grease coupled system is still significantly poorer.

• Research Organization: Argonne National Lab., IL (USA)
• DOE Contract Number: W-31-109-ENG-38
• OSTI ID: 6608970
• Report Number(s): CONF-841007-2; ON: DE84012095
• Resource Relation: Conference: Nuclear science symposium, Orlando, FL, USA, 31 Oct 1984; Other Information: Portions are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
POSITION SENSITIVE DETECTORS
COMPUTERIZED SIMULATION
SCINTILLATION COUNTERS
SIGNALS
OPTICAL SYSTEMS
NONLINEAR PROBLEMS
PHOTOMULTIPLIERS
SPATIAL RESOLUTION
MEASURING INSTRUMENTS
PHOTOTUBES
RADIATION DETECTORS
RESOLUTION
SIMULATION
440101* - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments