A proton-recoil proportional-counter array for neutron-image construction

Conference · Fri Feb 01 04:00:00 EST 1985 · IEEE Trans. Nucl. Sci.; (United States)

OSTI ID:5083971

Fink, C L; DeVolpi, A; Eichholz, J J

The fuel-motion measurement capability of the fast-neutron hodoscope has been upgraded by the addition of a 360-detector proton-recoil proportional-counter array, which detects highenergy fission neutrons. The current sensitive amplifier/discriminator module for each detector fits into a 12.7- by 12.7by 102-mm package and costs less than $100 per module. It has a 50-ns rise time, a noise level of 100 nA, and a deadtime per event of 200 ns. Provision has been provided for the independent adjustment of the input current versus discriminator voltage for each module. The new proportional-counters cost approximately $400 each. Each detector has been tested to have the same gain versus voltage response. A space-charge model relating count-rate changes to space-charge effects has also been developed. The new detector array has been operational for approximately two years and has become the main detector system in fuel-motion analysis. It has significantly improved the linearity, stability, count-rate capability, and setup ease of the hodoscope.

• Research Organization: Argonne National Lab., Argonne, IL
• OSTI ID: 5083971
• Report Number(s): CONF-841007-
• Conference Information: Journal Name: IEEE Trans. Nucl. Sci.; (United States) Journal Volume: NS-32:1
• 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
AIR COOLED REACTORS
AMPLIFIERS
BARYONS
BIOMEDICAL RADIOGRAPHY
COST
DETECTION
DIAGNOSTIC TECHNIQUES
ELECTRONIC EQUIPMENT
ELEMENTARY PARTICLES
ENRICHED URANIUM REACTORS
EQUIPMENT
EXPERIMENTAL REACTORS
FERMIONS
FISSION NEUTRONS
FUEL ELEMENTS
FUEL MOTION DETECTION
GAS COOLED REACTORS
GRAPHITE MODERATED REACTORS
HADRONS
HODOSCOPES
HOMOGENEOUS REACTORS
IONOGRAPHIC IMAGING
MEASURING INSTRUMENTS
MEDICINE
NEUTRON DETECTORS
NEUTRONS
NUCLEAR MEDICINE
NUCLEONS
PERFORMANCE
PROPORTIONAL COUNTERS
PROTON RECOIL DETECTORS
PULSE AMPLIFIERS
PULSE RISE TIME
RADIATION DETECTORS
RADIOLOGY
REACTOR COMPONENTS
REACTOR SAFETY
REACTORS
RESEARCH AND TEST REACTORS
SAFETY
SOLID HOMOGENEOUS REACTORS
TEST REACTORS
THERMAL REACTORS
TIMING PROPERTIES
TREAT REACTOR