Calculated and Experimental Investigations of Helical MCG with Output Energy of 10 MJ

High initial currents are required for effective operation of multi-element disk magneto-cumulative generators (DMCG). The DMCG powering is provided by an energy preamplifier (helical MCG). Having a lot of contact connections located on a small radius, it is necessary to power the DMCG during a shor...

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Bibliographic Details
Published in2018 16th International Conference on Megagauss Magnetic Field Generation and Related Topics (MEGAGAUSS) pp. 1 - 3
Main Authors Demidov, Vasily A., Kazakov, Sergey A., Vlasov, Yurii V., Boriskin, Alexander S., Golosov, Sergey N., Agapov, Anton A.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.09.2018
Subjects
current
Current measurement
disk magneto-cumulative generator
Electron tubes
Generators
high-speed helical generator
Inductance
magnetic energy
Magnetic flux
Physics
Preamplifiers
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Summary:High initial currents are required for effective operation of multi-element disk magneto-cumulative generators (DMCG). The DMCG powering is provided by an energy preamplifier (helical MCG). Having a lot of contact connections located on a small radius, it is necessary to power the DMCG during a short time period; that is the preamplifier should be of high-speed. In the report, there are the results of the first experiment with a high-speed helical MCG with an internal diameter of the turns of 320 mm. The generator provided the current of 8.5 MA (magnetic energy of 10.6 MJ) with a characteristic rise time of 38 µs in the load of 300 nH at the energy powering of 120 kJ; this is equal to the initial inductance of the 15-element DMCG with a HE-charges of 480 mm diameter.
DOI:10.1109/MEGAGAUSS.2018.8722603