Fast-Ion Axial Bounce Resonance in a Linear Magnetic Fusion DeviceRemoveS. Karbashewski, E. M. Granstedt, S. Kamio, M. Onofri, T. DeHaas, Y. Fujiwara, R. E. Groenewald, and A. VekslerPhys. Rev. Lett. 136, 205101 (2026)