Neutron energy spectra in lithium. Measurements and calculations

R. Ofek; A. Tsechanski; A. Goldfeld; G. Shani; A. E. Profio; J. J. Wagschal

doi:10.13182/NSE90-A23723

Neutron energy spectra in lithium. Measurements and calculations

R. Ofek^*, A. Tsechanski, A. Goldfeld, G. Shani, A. E. Profio, J. J. Wagschal

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

The Ben Gurion University 15-MeV 'clean' neutron field is used to investigate various problems encountered in fusion reactor blanket designs. In particular, the adequacy of the ⁷Li tritium production neutron cross section was analyzed by comparing measured neutron energy spectra in a lithium tank with detailed Monte Carlo calculations. It is seen that new evaluations are needed that would consider the various mechanisms that contribute to tritium production in ⁷Li and determine the shape of the secondary neutron energy spectrum. It is also found that uncertainties in the alignment of the source-target-detector configuration in integral experiments may result in considerable discrepancies in the analyses of such experiments.

Original language	English
Pages (from-to)	239-257
Number of pages	19
Journal	Nuclear Science and Engineering
Volume	104
Issue number	3
DOIs	https://doi.org/10.13182/NSE90-A23723
State	Published - 1990
Externally published	Yes

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abstract = "The Ben Gurion University 15-MeV 'clean' neutron field is used to investigate various problems encountered in fusion reactor blanket designs. In particular, the adequacy of the 7Li tritium production neutron cross section was analyzed by comparing measured neutron energy spectra in a lithium tank with detailed Monte Carlo calculations. It is seen that new evaluations are needed that would consider the various mechanisms that contribute to tritium production in 7Li and determine the shape of the secondary neutron energy spectrum. It is also found that uncertainties in the alignment of the source-target-detector configuration in integral experiments may result in considerable discrepancies in the analyses of such experiments.",

author = "R. Ofek and A. Tsechanski and A. Goldfeld and G. Shani and Profio, {A. E.} and Wagschal, {J. J.}",

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AU - Goldfeld, A.

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AU - Profio, A. E.

AU - Wagschal, J. J.

PY - 1990

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AB - The Ben Gurion University 15-MeV 'clean' neutron field is used to investigate various problems encountered in fusion reactor blanket designs. In particular, the adequacy of the 7Li tritium production neutron cross section was analyzed by comparing measured neutron energy spectra in a lithium tank with detailed Monte Carlo calculations. It is seen that new evaluations are needed that would consider the various mechanisms that contribute to tritium production in 7Li and determine the shape of the secondary neutron energy spectrum. It is also found that uncertainties in the alignment of the source-target-detector configuration in integral experiments may result in considerable discrepancies in the analyses of such experiments.

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Neutron energy spectra in lithium. Measurements and calculations

Abstract

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