Development of digital electronics for the search of SHE nuclei using GARIS-II/III at RIKEN

P. Brionnet; R. K. Grzywacz; D. Kaji; T. T. King; T. Niwase; K. Morimoto; K. P. Rykaczewski; H. Sakai

doi:10.1016/j.nima.2023.168068

Development of digital electronics for the search of SHE nuclei using GARIS-II/III at RIKEN

P. Brionnet, R. K. Grzywacz, D. Kaji, T. T. King, T. Niwase, K. Morimoto, K. P. Rykaczewski, H. Sakai

Nuclear Structure and Nuclear Astrophysi

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Abstract

This work describes the implementation of a digital data acquisition system for the search and study of short-lived isotopes or superheavy elements at the GARIS-III separator at the RIKEN Nishina Center. A reduction to 26±0.5 keV in the average value of the Full Width at Half Maximum of the alpha spectrum at 7.133 MeV was achieved, combined with a reduction of the dead time of the overall system to around a few tens of nanoseconds for the detection of very fast decay chains. Moreover, we measured a reduction of the background induced by particles crossing the implantation detector using pulse shape analysis techniques. The detail of the optimization and analysis will be presented.

Original language	English
Article number	168068
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	1049
DOIs	https://doi.org/10.1016/j.nima.2023.168068
State	Published - Apr 2023

Funding

The authors warmly thanks the international nSHE collaborators for their participation to the RIKEN experiments. ORNL researchers were supported by the U.S. DOE Office of Nuclear Physics under DOE Contract No. DE-AC05-00OR22725 with UT Battelle, LLC. U.S. Department of Energy, Office of Science, Office of Nuclear Physics under Contract DE-FG02-96ER40983 (UTK) National Nuclear Security Administration under the Stewardship Science Academic Alliances program Award No. DE-NA0003899. The publisher acknowledges the US government license to provide public access under the DOE Public Access Plan.

Funders	Funder number
U.S. Department of Energy	DE-AC05-00OR22725
Office of Science
National Nuclear Security Administration	DE-NA0003899
Nuclear Physics	DE-FG02-96ER40983
University of Tennessee, Knoxville

Keywords

Digital electronics
Pulse shape analysis
Silicon detector
Super heavy elements

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10.1016/j.nima.2023.168068

Cite this

Brionnet, P., Grzywacz, R. K., Kaji, D., King, T. T., Niwase, T., Morimoto, K., Rykaczewski, K. P., & Sakai, H. (2023). Development of digital electronics for the search of SHE nuclei using GARIS-II/III at RIKEN. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1049, Article 168068. https://doi.org/10.1016/j.nima.2023.168068

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abstract = "This work describes the implementation of a digital data acquisition system for the search and study of short-lived isotopes or superheavy elements at the GARIS-III separator at the RIKEN Nishina Center. A reduction to 26±0.5 keV in the average value of the Full Width at Half Maximum of the alpha spectrum at 7.133 MeV was achieved, combined with a reduction of the dead time of the overall system to around a few tens of nanoseconds for the detection of very fast decay chains. Moreover, we measured a reduction of the background induced by particles crossing the implantation detector using pulse shape analysis techniques. The detail of the optimization and analysis will be presented.",

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Brionnet, P, Grzywacz, RK, Kaji, D, King, TT, Niwase, T, Morimoto, K, Rykaczewski, KP & Sakai, H 2023, 'Development of digital electronics for the search of SHE nuclei using GARIS-II/III at RIKEN', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 1049, 168068. https://doi.org/10.1016/j.nima.2023.168068

Development of digital electronics for the search of SHE nuclei using GARIS-II/III at RIKEN. / Brionnet, P.; Grzywacz, R. K.; Kaji, D. et al.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 1049, 168068, 04.2023.

Research output: Contribution to journal › Article › peer-review

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T1 - Development of digital electronics for the search of SHE nuclei using GARIS-II/III at RIKEN

AU - Brionnet, P.

AU - Grzywacz, R. K.

AU - Kaji, D.

AU - King, T. T.

AU - Niwase, T.

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KW - Pulse shape analysis

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Development of digital electronics for the search of SHE nuclei using GARIS-II/III at RIKEN

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