Bound-electron g-factor in low-Z highly charged ions

The Electron String Ion Source (ESIS) basically is a modified Electron Beam Ion Source (EBIS). They both were first proposed, developed, constructed, tested and used at JINR (Dubna, Russia). In an ESIS, multiply reflected electrons, which under special conditions can form an electron string (pure one-component magnetized hot electron plasma), are used instead of a direct electron beam as in a conventional EBIS. ESIS-type ion sources have been chosen for the injector complex of the new JINR project NICA - superconducting collider of heavy ions. The project parameters of the ESIS at NICA are 1-3 10⁹ Au³¹⁺ ppp with a repetition rate of 50 Hz. Recent results on heavy ion beams (Ar¹⁶⁺ - Ar¹⁷⁺, Kr²⁶⁺ - Kr²⁹⁺, Xe⁴⁰⁺ - Xe⁴²⁺, Tm⁴¹⁺ - Tm⁵⁰⁺, Au³²⁺) production with the new Krion-6T ESIS will be discussed. Potential applications of the ESIS-type ion source for carbon-ion therapy accelerators - ¹¹C⁴⁺, ¹¹C⁶⁺ beams for HIMAC synchrotron [NIRS, Chiba, Japan], and ¹²C⁶⁺ beams for fast cycling cyclotrons (CABOTO, CERN-Italy) - will be discussed. Finally, the scheme of a planned experiment on the study of alpha-decay properties (lifetime and alpha particle energy) versus charge state q⁺ of nuclei ²²⁰Rn^q+ will be discussed as well.