Recent achievements at the Rare-RI Ring, a unique mass spectrometer at the RIBF/RIKEN Sarah Naimi, Yoshitaka Yamaguchi, Takayuki Yamaguchi and Akira Ozawa Eur. Phys. J. A, 59 4 (2023) 90 Published online: 28 April 2023 DOI: 10.1140/epja/s10050-023-01009-4