Induction module with voltage modulation and repetition capability for ion acceleration

At low energy region of high current ion accelerators, ion beams must be low current and longitudinally compressed with time to avoid space charge explosion. This means that we have to make a carefully programmed voltage waveform. We propose a voltage synthesis scheme for induction modules to make the waveform shaping and repetitive operation. In this scheme, the voltage is stacked and synthesized by independently driven modules. Each module is composed of a simple L-C based circuit and driven by FETs. The L-C based circuits make sinusoidal waveforms, which enable highly repetitive and low core-loss operation of the induction units. Moreover, this scheme is robust against time jitter of the module switching and non-linear characteristics of the ferromagnetic core materials.