Segmented YSO scintillation detectors as a new β-implant detection tool for decay spectroscopy in fragmentation facilities

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...

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Published in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2019-09, Vol.937 (C), p.93-97
Main Authors: Yokoyama, R., Singh, M., Grzywacz, R., Keeler, A., King, T.T., Agramunt, J., Brewer, N.T., Go, S., Heideman, J., Liu, J., Nishimura, S., Parkhurst, P., Phong, V.H., Rajabali, M.M., Rasco, B.C., Rykaczewski, K.P., Stracener, D.W., Tain, J.L., Tolosa-Delgado, A., Vaigneur, K., Wolińska-Cichocka, M.
Format: Article
Language:English
Subjects:
Beta-decay
Fragmentation
Implant-beta detector
Radioactive isotopes
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Summary: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.
ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2019.05.026