THE DESIGN AND PERFORMANCE OF A TRANSPORTABLE LOW-COST INSTRUMENT FORTHE GENERATION AND APPLICATION OF MEGAGAUSS FIELDS

A small megagauss generator which produces 110 T by fast semi-destruct ive capacitor discharge into a single-turn coil of 10 mm diameter is d escribed. For spectroscopic applications the 3 mu s pulses are adequat ely resolved by 8-12 bit, 200-1000 MSa s(-1) data recording systems. T he technical implementation of the 60 kV discharge circuit with a tota l inductance of less than 26 nH, not including the field coil, is disc ussed in detail. The performance is characterized in terms of the osci llatory circuit parameters R, L and C with brief references to more fu ndamental studies on transient field phenomena. Safety features as wel l as the organization and handling of control units and data recording systems are explicitly described to demonstrate the applicability of the generator.