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  • Title: Compact high-current pulse generator for laboratory studies of high energy density matter.
    Author: Gleizer S, Maler D, Flyat E, Rososhek A, Efimov S, Leopold J, Krasik YE.
    Journal: Rev Sci Instrum; 2021 Feb 01; 92(2):023510. PubMed ID: 33648154.
    Abstract:
    We present the design and parameters of a compact and mobile high-current pulse generator, which can be applied in the study of warm dense matter in university laboratories. The generator dimensions are 550 × 570 × 590 mm3, the weight is ∼70 kg, and it consists of four "bricks" connected in parallel. Each brick, made up of 2 × 40 nF, 100 kV low-inductance capacitors connected in parallel, has its own multi-gap and multichannel ball gas spark switch, triggered via a capacitively coupled triggering by a positive polarity pulse of ∼80 kV amplitude and ∼15 ns rise time. At a charging voltage of ∼70 kV, the generator produces a ∼155 kA current pulse with a rise time of ∼220 ns on a ∼15 nH inductive short-circuit load and a ∼90 kA amplitude current pulse in the underwater electrical explosion of a copper wire.
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