High resolution fast neutron spectrometry without time-of-flight

Conference · Sun Jan 01 00:00:00 EST 1978

OSTI ID:6338755

Evans, A E; Brandenberger, J D

Performance tests of a spectrometer tube of the type developed by Cuttler and Shalev show that the measurement of fast neutron spectra with this device can be made with an energy resolution previously obtainable only in large time-of-flight facilities. In preliminary tests, resolutions of 16.4 keV for thermal neutrons and 30.9 keV for 1-MeV neutrons were obtained. A broad-window pulse-shape discrimination (PSD) system is used to remove from pulse-height distributions most of the continua due to /sup 3/He-recoil events, noise, and wall effect. Use of PSD improved the energy resolution to 12.9 keV for thermal neutrons and 29.2 keV for 1-MeV neutrons. The detector is a viable tool for neutron research at nominally equipped accelerator laboratories.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 6338755
• Report Number(s): LA-UR-78-2562; CONF-781113-4; TRN: 79-004191
• Resource Relation: Conference: 5. conference on application of small accelerators, Denton, TX, USA, 6 Nov 1978
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
HE-3 COUNTERS
PERFORMANCE
LONG COUNTERS
NEUTRON SPECTROMETERS
SPECIFICATIONS
ELECTRONIC CIRCUITS
FAST NEUTRONS
BARYONS
ELEMENTARY PARTICLES
FERMIONS
HADRONS
MEASURING INSTRUMENTS
MODERATING DETECTORS
NEUTRON DETECTORS
NEUTRONS
NUCLEONS
PROPORTIONAL COUNTERS
RADIATION DETECTORS
SPECTROMETERS
440103* - Radiation Instrumentation- Nuclear Spectroscopic Instrumentation