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The influence of fast neutron irradiation on the critical current densities in Nb 3 Sn I. Low neutron doses (Φ < 2 × 10 18 neutrons/cm
Author(s) -
Fähnle M.
Publication year - 1977
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220840127
Subject(s) - neutron , irradiation , materials science , nuclear physics , neutron irradiation , neutron temperature , current (fluid) , radiochemistry , physics , chemistry , thermodynamics
By irradiation with fast neutrons the critical current densities J c of Nb 3 Sn are modified in a characteristic manner depending on the irradiation dose. A short survey is given of the experimental work on this subject. By a model calculation it is shown that the modification of the critical current densities after low‐dose irradiation (Φ < 2 × 10 18 neutrons/cm 2 ) may be explained by a modification of the density of pinning centres and not by an influence on the intrinsic superconducting parameters, as assumed by other authors.