Increasing power of energy preamplifiers for disk magneto-cumulative generators

Nowadays disk magneto-cumulative generators (DMCG) are the most powerful and power-consuming magneto-cumulative generators (MCG). The problem of necessary initial energy supply to the generator circuit is very urgent at creating high-performance disk generators. Preliminary energy amplification in experiments with DMCG is provided with helical MCGs. Along with preset energy supply, the preamplifier should have small characteristic current rise time. It is necessary for decreasing thermal and mechanical supply current effect on elements of the disk generator. This means increasing the output power of the preamplifier and associated with obtaining maximum possible initial energy in the DMCG. Initial inductance and resistance of the DMCG circuit became higher with increase of the DMCG sizes and the number of its elements. This required increasing the power of earlier used preamplifiers. The paper presents experimental results of the MCG-240 characteristics improvement at the expense of turns distribution change and application of more powerful explosive. Other possibilities of the preamplifier power increase are considered in the paper.