Abstract
Various types of high-current nanosecond accelerators are simulated numerically using an equivalent circuit representation. The influence of pulse forming line switch inductance on the amplitude and waveform of output voltage and current pulses is analyzed.
Highlights
High-current nanosecond accelerators of charged particles [1] have a typical electrical scheme containing a pulse forming line (PFL), its switch, and charging unit
As a result of elaboration of the model including an analytical calculation of the circuit elements, a good agreement between the simulated pulses and the observed pulses of the working nanosecond accelerator (figure 2(d)) and linear induction accelerators (figures 3(c) and 3(d)) was achieved
It allows one to use the mentioned simulation model for the analysis of the influence of the element parameters of the equivalent circuit on the amplitude and the waveform of the accelerator pulses on a load
Summary
High-current (kiloampere level) nanosecond accelerators of charged particles [1] have a typical electrical scheme containing a pulse forming line (PFL), its switch, and charging unit. The analysis of the influence of PFL switch inductance on the amplitude and the waveform of the output pulses is possible using an equivalent circuit of the accelerator. Its main elements are the power supply source PS, the double forming line DFL, the switch K, the high-voltage transformer T (ferromagnetic induction system if the LIA is simulated) and the ohmic load RL. Excluding the elements of the high-voltage transformer, one can reduce the scheme to that of usual accelerator, in which the PFL is directly connected to the load.
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