Precision of an Ultra-high Magnetic Field Generated by the Electro-magnetic Flux Compression
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Recent progress of the electro-magnetic flux compression techniques enables us to generate a magnetic field of up to 730 T. We used Faraday rotation (FR) of a quartz rod, whose dimension was precisely measured, as a precise measurement of the magnetic field in such extreme conditions. The turn-around structure around a peak field was observed in the FR angle when plotted against time for the first time. We have attempted to calibrate the signals of the pickup coils by the FR angle.
KeywordsElectro-magnetic flux compression Ultra-high magnetic field Faraday rotation
The authors owe technical support from Mr. H. Sawabe. We acknowledge support from Japan Society for the Promotion of Science (Leading-edge Research Infrastructure Program).
- 12.S. Ramaseshan, Proc. Indian Acad. Sci. A 24, 426 (1946) Google Scholar