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Verification of nuclear data for DT neutron induced charged-particle emission reaction of light nuclei
- Source :
-
Fusion Engineering & Design . Oct2007, Vol. 82 Issue 15-24, p2786-2793. 8p. - Publication Year :
- 2007
-
Abstract
- Abstract: Double-differential cross-section (DDX) for emitted charged particles is necessary to estimate material damage, gas production and nuclear heating in a fusion reactor. Detailed measurements of the cross-sections for beryllium, carbon and fluorine, which are among the composition materials of expected fusion blankets and first walls, were carried out with a charged-particle spectrometer using a pencil-beam DT neutron source. As verification of the cross-sections evaluated in three nuclear libraries (JENDL-3.3, ENDF/B-VI and JEFF-3.1), our measured data were compared with the data evaluated in the libraries. From the comparison, the following problems were pointed out: Beryllium: Remarkable differences in energy and angular distribution for α-particles were observed between the measured data and the libraries. The estimated total cross-section for α-particle production well agreed with the libraries. Carbon: There was a discrepancy of about 20% between JENDL-3.3 and ENDF/B-VI (JEFF-3.1) for α-particle production cross-section, and no DDX for α-particles is given in the libraries. Our obtained total cross-section for α-particle production was rather consistent with ENDF/B-VI (JEFF-3.1), and the value evaluated in JENDL-3.3 seemed too large. Fluorine: The remarkable differences for DDX of protons and α-particles were observed between the obtained result and JENDL-3.3, although detailed DDX was stored only in JENDL. The obtained total cross-sections mostly supported the evaluation of ENDF/B-VI (JEFF-3.1). [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 09203796
- Volume :
- 82
- Issue :
- 15-24
- Database :
- Academic Search Index
- Journal :
- Fusion Engineering & Design
- Publication Type :
- Academic Journal
- Accession number :
- 27061753
- Full Text :
- https://doi.org/10.1016/j.fusengdes.2007.03.013