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Design of a single moderator-type neutron spectrometer with enhanced energy resolution in the energy range from a few to 100keV
- Source :
-
Nuclear Instruments & Methods in Physics Research Section A . Aug2005, Vol. 547 Issue 2/3, p592-600. 9p. - Publication Year :
- 2005
-
Abstract
- Abstract: The moderator structure for a neutron spectrometer was optimized with the Monte Carlo code MCNP-4B. The spectrometer consists of a cylindrical moderator and a position-sensitive thermal neutron detector and obtains energy spectra from thermal neutron distribution along its cylindrical axis. The structure of the moderator was improved by using a low hydrogen density material on one end and a high hydrogen density on the other, and inserting a neutron absorber that eliminates thermal neutron diffusion. This design improves the energy resolution of the spectrometer, especially for low-energy neutrons from a few to 100keV. The designed spectrometer can be applied to the measurement of energy spectra over a neutron energy range from a few keV to 20MeV. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 01689002
- Volume :
- 547
- Issue :
- 2/3
- Database :
- Academic Search Index
- Journal :
- Nuclear Instruments & Methods in Physics Research Section A
- Publication Type :
- Academic Journal
- Accession number :
- 18134965
- Full Text :
- https://doi.org/10.1016/j.nima.2005.03.162