PT Journal AU Yokoyama, R Singh, M Grzywacz, R Keeler, A King, TT Agramunt, J Brewer, NT Go, S Heideman, J Liu, J Nishimura, S Parkhurst, P Phong, VH Rajabali, MM Rasco, BC Rykaczewski, KP Stracener, DW Tain, JL Tolosa-Delgado, A Vaigneur, K Wolinska-Cichocka, M TI Segmented YSO scintillation detectors as a new beta-implant detection tool for decay spectroscopy in fragmentation facilities SO Nuclear Instruments & Methods in Physics Research A JI Nucl. Instrum. Methods Phys. Res. A PY 2019 BP 93 EP 97 VL 937 DI 10.1016/j.nima.2019.05.026 LA English DE Beta-decay; Implant-beta detector; Radioactive isotopes; Fragmentation AB A newly developed segmented YSO scintillator detector was implemented for the first time at the RI-beam Factory at RIKEN Nishina Center as an implantation-decay counter. The results from the experiment demonstrate that the detector is a viable alternative to conventional silicon-strip detectors with its good timing resolution and high detection efficiency for beta particles. A Position-Sensitive Photo-Multiplier Tube (PSPMT) is coupled with a 48 x 48 segmented YSO crystal. To demonstrate its capabilities, a known short-lived isomer in Ni-76 and the beta decay of Co-74 were measured by implanting those ions into the YSO detector. The half-lives and gamma-rays observed in this work are consistent with the known values. The beta-ray detection efficiency is more than 80 % for the decay of Co-74. ER