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EXPERIMENTAL ANALYSES OF SPALLATION NEUTRONS GENERATED BY 100 MEV PROTONS AT THE KYOTO UNIVERSITY CRITICAL ASSEMBLY
- Source :
- Nuclear Engineering and Technology, Vol 45, Iss 1, Pp 81-88 (2013)
- Publication Year :
- 2013
- Publisher :
- Elsevier BV, 2013.
-
Abstract
- Neutron spectrum analyses of spallation neutrons are conducted in the accelerator-driven system (ADS) facility at the Kyoto University Critical Assembly (KUCA). High-energy protons (100 MeV) obtained from the fixed field alternating gradient accelerator are injected onto a tungsten target, whereby the spallation neutrons are generated. For neutronic characteristics of spallation neutrons, the reaction rates and the continuous energy distribution of spallation neutrons are measured by the foil activation method and by an organic liquid scintillator, respectively. Numerical calculations are executed by MCNPX with JENDL/HE-2007 and ENDF/B-VI libraries to evaluate the reaction rates of activation foils (bismuth and indium) set at the target and the continuous energy distribution of spallation neutrons set in front of the target. For the reaction rates by the foil activation method, the C/E values between the experiments and the calculations are found around a relative difference of 10%, except for some reactions. For continuous energy distribution by the organic liquid scintillator, the spallation neutrons are observed up to 45 MeV. From these results, the neutron spectrum information on the spallation neutrons generated at the target are attained successfully in injecting 100 MeV protons onto the tungsten target.
- Subjects :
- Physics
Continuous Energy Distribution
Reaction rates
ADS
KUCA
Physics::Instrumentation and Detectors
Nuclear Theory
chemistry.chemical_element
Scintillator
lcsh:TK9001-9401
Neutron time-of-flight scattering
Bismuth
Nuclear physics
Reaction rate
Nuclear Energy and Engineering
chemistry
High-energy Protons
lcsh:Nuclear engineering. Atomic power
Physics::Accelerator Physics
Neutron source
Spallation
Neutron
Nuclear Experiment
Spallation Neutrons
FOIL method
Subjects
Details
- ISSN :
- 17385733
- Volume :
- 45
- Database :
- OpenAIRE
- Journal :
- Nuclear Engineering and Technology
- Accession number :
- edsair.doi.dedup.....a8d4456fd740db8ef768594fa3c2f2ac
- Full Text :
- https://doi.org/10.5516/net.08.2012.003