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Validation of heavy water cross section using AmBe neutron source
- Source :
- EPJ Web of Conferences, Vol 239, p 18008 (2020)
- Publication Year :
- 2020
- Publisher :
- EDP Sciences, 2020.
-
Abstract
- Physical quantities derived from integral experiments can usually be measured much more accurately than that from differential nuclear data. The accurate knowledge of integral parameters provide excellent grounds for testing and tuning differential data such as, for instance, cross sections. Measurement of neutron leakage spectra with 252Cf neutron source located at sphere center is often used for integral experiments. While this type of experiments provide information for cross section tuning, however, care must be taken to avoid misleading interpretation, namely, at high energies due to the very low portion of high energy neutrons in 252Cf spectrum. This issue can be alleviated by the use of point source with different spectra shape. For that purpose one suitable candidate seems to be the AmBe neutron source which has a relatively high average energy and peak character of emitted neutrons. Indeed, AmBe seems an interesting option because the calculated leakage neutron spectra are not very sensitive to the input shape of the neutron spectra. Thus the neutron leakage spectra calculated using tabulated of International Organization for Standardization spectra is nearly the same as stilbene measured AmBe spectra as an input.
- Subjects :
- Physics
Heavy water
010308 nuclear & particles physics
Point source
020209 energy
QC1-999
Nuclear data
02 engineering and technology
01 natural sciences
Spectral line
Computational physics
Cross section (physics)
chemistry.chemical_compound
chemistry
0103 physical sciences
0202 electrical engineering, electronic engineering, information engineering
Neutron source
Neutron
Physical quantity
Subjects
Details
- Language :
- English
- Volume :
- 239
- Database :
- OpenAIRE
- Journal :
- EPJ Web of Conferences
- Accession number :
- edsair.doi.dedup.....d05f62cf85de1702baedbdf8abdb9fd1