The helium plasma properties and confinement remain an important area of research in modern fusion devices. This work is dedicated to the helium plasma initiation and control in a small-scale tokamak GOLEM compared to hydrogen plasma. Helium and hydrogen plasmas are comprehensively compared and the optimum operational conditions for the start-up are found. Long-range correlations between lowfrequency (<50 kHz) electrostatic and magnetic oscillations are found, as well as broadband (<250 kHz) magnetic oscillations resolved in frequency and wave vector in helium plasma.
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Sarancha et al. (2021) studied this question.
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