Nonequilibrium Properties of Superconductivity Induced by Nuclear Radiation.
Abstract
The report is primarily an examination of certain of the dynamic effects associated with the interaction of energetic nuclear particles with the superconducting state. Also included is a brief discussion of the effects of thermal heating due to massive radiation on superconductivity. Calculations are done on the space-time evolution of the superconducting energy gap along a single particle track in a superconductor. These results are then applied to a Josephson tunnel junction in order to determine the time response of such a junction to nuclear impacts. Experimental results are reported on the dynamic response of superconducting Aluminum films to single 6 Mev alpha particles. It was found that the relaxation effects following nuclear impact, reported here, were probably dominated by ballistic phonon processes and had a temperature dependent relaxation time ranging from 10-100 nanoseconds. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 29, 1974
- Accession Number
- AD0778374
Entities
People
- C. W. Owen
- D. J. Scalapino
- G. J. Dick
- J. E. Mercereau
- K. W. Shepard