Critical current enhancement in Nb3Sn by low-temperature fast-neutron irradiation
- 1 February 1977
- journal article
- letter
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 48 (2) , 837-838
- https://doi.org/10.1063/1.323639
Abstract
An advanced type of Nb3Sn composite wire was irradiated at ∼6 K with fast neutrons. The short‐section critical current jc was measured at 4.2 K (after annealing to 77 K) in transverse magnetic fields up to 10 T. Before irradiation, jc at 4 T was 1.6×106 A/cm2. A fluence of 1.8×1018 n/cm2 increased jc for H≳2T, the enhancement increasing with field to 85% at H=10 T. After annealing to 540 K, roughly one‐half the enhancement remained. These results are compared with those for an earlier similar material, but with a smaller jc before irradiation. For comparable fluences, the relative enhancement in the earlier material was unexpectedly less than in the improved samples.This publication has 9 references indexed in Scilit:
- Effects of stresses, induced by thermal contraction of a bronze matrix, on the superconducting properties of Nb3Sn wiresApplied Physics Letters, 1976
- Critical currents in Nb3Sn fast-neutron irradiated at 6 KApplied Physics Letters, 1976
- Critical current changes in Nb3Sn irradiated with fast neutrons at 6 KJournal of Applied Physics, 1975
- The influence of low temperature neutron irradiation on superconducting magnet systems for fusion reactorsIEEE Transactions on Magnetics, 1975
- Effect of low temperature neutron irradiation on superconducting properties of Nb3SnPhysics Letters A, 1975
- Effects of Sn concentration on the critical current density of Nb3Sn formed at the Nb–(Cu–Sn alloy) interfaceApplied Physics Letters, 1974
- Effects of heat treatment and doping with Zr on the superconducting critical current densities of multifilamentary Nb3Sn wiresJournal of Applied Physics, 1974
- Atomic Ordering and Superconductivity in High-CompoundsPhysical Review Letters, 1974
- Scaling laws for flux pinning in hard superconductorsJournal of Applied Physics, 1973