Low-Frequency Electromagnetic Losses at 4.2°K of Neutron-Irradiated Nb
- 1 January 1971
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 42 (1) , 16-21
- https://doi.org/10.1063/1.1659554
Abstract
Low-frequency (350 Hz) permeability measurements at 4.2°K using phase-sensitive techniques were carried out on a Nb sample irradiated in the Oak Ridge Research Reactor at 40°C to several fast neutron doses up to 6×1019 neutrons/cm2 (E> 1 MeV). In the mixed-state region a signal proportional to the electromagnetic loss in the sample is observed which decreases with increasing fast neutron dose. Quantitative estimates of the power dissipation in irradiated Nb are given which are then related to the magnetic field dependence of the critical current density Jc(H).This publication has 15 references indexed in Scilit:
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