Sep 20 – 24, 2021
America/Vancouver timezone

High B-min Quasi-Stable Operation Regime of an Electron Cyclotron Resonance Ion Source

Sep 20, 2021, 7:45 AM
20m
Parallel Session (Contributed Oral) talk Production of highly charged ion beams

Speaker

Dr Ivan Izotov (IAP RAS)

Description

Fundamental studies of excitation and non-linear evolution of kinetic instabilities of strongly non-equlibrium hot plasmas confined in open magnetic traps suggest new opportunities for fine-tuning of conventional electron cyclotron resonance ion sources (ECRIS) widely used for generation of high charge state ions. We report on experiments with a 14 GHz ECRIS , in which adopting the new approach allows to shift the charge state distribution and increase the current of extracted high charge state ions up to two times, achieving, in particular, 95 $\mu$A of O$^{7+}$ with a modest heating power of 280 W/11.56 GHz. A theoretical model supporting and explaining the experimental findings is proposed. The implications on the commonly used semi-empirical scaling laws for ECRISes are discussed.

E-mail for contact person ivizot@ipfran.ru
Funding Information The data analysis and theoretical work has been supported by Russian Science foundation, grant #19-12-00377

Primary authors

Vadim Skalyga (IAP RAS) Dr Ivan Izotov (IAP RAS) Prof. Alexander Shalashov (IAP RAS) Dr Egor Gospodchikov (IAP RAS) Elena Kiseleva (IAP RAS) Olli Tarvainen (STFC Rutherford Appleton Laboratory) Hannu Koivisto (University of Jyväskylä) Ville Toivanen (University of Jyväskylä)

Presentation materials