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COMPUTER GRAPHICS TO SEPARATE neutron from gamma-ray spectra, applied to the measurement of neutron attenuation coefficients using an NE-213 scintillator

Journal Article · · Nucl. Technol.; (United States)
OSTI ID:5886280
; ; ; ;
A new approach is described in the use of NE-213 detectors to perform neutron spectra measurements, which have been developed jointly by the U.S. Naval Academy and the Naval Surface Weapons Center. The approach is based on collecting a three-dimensional matrix of neutron and gamma-ray data. The dimensional plots of the collected data, which are computer generated, are used to ensure proper separation of the neutrons from gamma rays. After separation, the spectra are calibrated, binned, renormalized, and finally unfolded. In this manner neutron energy spectra and kerma are obtained. Linear attenuation coefficients for 14-MeV neutrons were determined by placing iron, lead, aluminum, polyester, and polyethylene-based materials between the neutron source and the NE-213 detector.
Research Organization:
U.S. Naval Academy, Naval Systems Engineering Department, Annapolis, MD
OSTI ID:
5886280
Journal Information:
Nucl. Technol.; (United States), Journal Name: Nucl. Technol.; (United States) Vol. 71:2; ISSN NUTYB
Country of Publication:
United States
Language:
English

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Related Subjects

440103* -- Radiation Instrumentation-- Nuclear Spectroscopic Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ABSORPTION
ALUMINIUM
CALIBRATION
COMPUTER GRAPHICS
DATA PROCESSING
ELEMENTS
ENERGY ABSORPTION
ENERGY SPECTRA
ESTERS
GAMMA SPECTRA
IRON
KERMA
LEAD
MEASURING INSTRUMENTS
METALS
NEUTRON SPECTRA
NEUTRON SPECTROMETERS
NEUTRON SPECTROSCOPY
ORGANIC COMPOUNDS
ORGANIC POLYMERS
POLYESTERS
POLYETHYLENES
POLYMERS
POLYOLEFINS
PROCESSING
RADIATION DETECTORS
SCINTILLATION COUNTERS
SPECTRA
SPECTRA UNFOLDING
SPECTROMETERS
SPECTROSCOPY
THREE-DIMENSIONAL CALCULATIONS
TRANSITION ELEMENTS