A digital pulse-shape discriminating unit for neutron-gamma discrimination with NE213
A fast and stable digital pulse-shape discriminating unit has been developed for the moisture gauge using /sup 252/Cf as radiation source. This unit performs digital discrimination between neutrons and gamma-rays in conbination with the liquid scintillator NE213. Modern digital integrated circuits such as flash type A-D converter, a digital divider, a digital comparator and digital controlled gated integrators compose the discrimination circuit. Neutrons and gamma-rays events are separately accumulated and applied for automatic stabilization by an integrated single-chip computer. The discriminating characteristics are controlled not only manually but also under a host computer by way of the GPIB. The performances of available event rates and long term stability are estimated around 100 kcps and 0.5 % respectively. The actual circuit configuration and features are discussed in detail.
- Research Organization:
- Japan Atomic Energy, Research Inst., Tokai-Mura, Nakagun, Ibaraki-ken, 319-11
- OSTI ID:
- 7136400
- Report Number(s):
- CONF-831015-
- Journal Information:
- IEEE Trans. Nucl. Sci.; (United States), Vol. 31:1; Conference: Nuclear science symposium, San Francisco, CA, USA, 19 Oct 1983
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
LIQUID SCINTILLATION DETECTORS
PULSE DISCRIMINATORS
MOISTURE GAGES
DESIGN
DIGITAL SYSTEMS
PERFORMANCE
ANALOG-TO-DIGITAL CONVERTERS
CALIFORNIUM 252
COMPARATOR CIRCUITS
CONTROL SYSTEMS
COUNTING RATES
DIGITAL COMPUTERS
GAMMA DETECTION
GAMMA SOURCES
INTEGRATED CIRCUITS
NEUTRON DETECTION
NEUTRON SOURCES
PULSE INTEGRATORS
STABILITY
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
CALIFORNIUM ISOTOPES
COMPUTERS
DETECTION
DISCRIMINATORS
ELECTRONIC CIRCUITS
ELECTRONIC EQUIPMENT
EQUIPMENT
EVEN-EVEN NUCLEI
HEAVY NUCLEI
ISOTOPES
MEASURING INSTRUMENTS
MICROELECTRONIC CIRCUITS
NUCLEI
PARTICLE SOURCES
PULSE CIRCUITS
RADIATION DETECTION
RADIATION DETECTORS
RADIATION SOURCES
RADIOISOTOPES
SCINTILLATION COUNTERS
YEARS LIVING RADIOISOTOPES
440105* - Radiation Instrumentation- Radiometric Instruments- (-1987)