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 β particles. A Position-Sensitive Photo-Multiplier Tube (PSPMT) is coupled with a 48×48 segmented YSO crystal. To demonstrate its capabilities, a known short-lived isomer in 76Ni and the β decay of 74Co were measured by implanting those ions into the YSO detector. The half-lives and γ-rays observed in this work are consistent with the known values. The β-ray detection efficiency is more than 80~\% for the decay of 74Co.
@article{arxiv.1903.03670,
title = {Segmented YSO scintillation detectors as a new ${\rm \beta}$-implant detection tool for decay spectroscopy in fragmentation facilities},
author = {R. Yokoyama and M. Singh and R. Grzywacz and A. Keeler and T. T. King and J. Agramunt and N. T. Brewer and S. Go and J. Heideman and J. Liu and S. Nishimura and P. Parkhurst and V. H. Phong and M. M. Rajabali and B. C. Rasco and K. P. Rykaczewski and D. W. Stracener and J. L. Tain and A. Tolosa-Delgado and K. Vaigneur and M. Wolińska-Cichocka},
journal= {arXiv preprint arXiv:1903.03670},
year = {2019}
}
Comments
17 pages, 6 figures, accepted to NIMA on May 7, 2019