Evaluation of Phoswitch-type scintillation detector to distinguish low-energy charged particles

POSTER

Abstract

It is indispensable for describing the equation of state of nuclear matter that we clarify the property of atomic nuclei not only at standard density but also at low density. One of the theoretically predicted states at low nucleon density is a superfluid condensate of alpha particles. Identifying this state can help describing the equation of state, and therefore, much efforts to search for a condensate of alpha particles have been devoted.

Since a condensate of alpha particles decays by emitting multiple low-energy alpha particles, we can identify the condensate by detecting these decay particles. However, conventional detectors are not suitable for such measurements because these detectors are not useful to distinguish low-energy alpha particles from other charged particles. We need a new type of detector to solve this difficulty.

We develop a Phoswitch-type scintillation detector, in which a thin layer of scintillation material is fabricated on inorganic scintillation crystal with different time constants. This layer effectively works as a very thin transmission detector which low-energy particles can penetrate, and at the same time has sufficient detection efficiency. In the present talk, we will report details about this detector and its performance.

Presenters

  • Shiyo Enyo

    • Department of Physics, Kyoto University

Authors

  • Shiyo Enyo

    • Department of Physics, Kyoto University

  • Takahiro Kawabata

    • Department of Physics, Osaka University

  • Yoshiko Kanada-En'yo

    • Kyoto University

  • Kenichi Yoshida

    • Department of Physics, Kyoto university
    • Department of Physics, Kyoto University

  • Shunsuke Kurosawa

    • New Industry Creation Hatchery Center,Tohoku University, Faculty of science, Yamagata University

  • Akihiro Yamaji

    • Institute for Materials Research, Tohoku University

  • Tatsuya Furuno

    • RCNP (Osaka University)
    • RCNP, Osaka University

  • Kento Inaba

    • Department of Physics, Kyoto University
    • Department of Physics, Kyoto Univiersity

  • Yuki Fujikawa

    • Department of Physics, Kyoto University

  • Takanobu Doi

    • Department of Physics, Kyoto University

  • Yui Arakawa

    • Department of Physics, Kyoto University

  • Ryota Kongo

    • Department of Physics, Kyoto University

  • Kousuke Sakanashi

    • Department of Physics, Osaka University

  • Shu Takagi

    • Department of Physics, Kyoto University

  • Yuto Hijikata

    • Department of Physics, Kyoto University

  • Rinko Matsumoto

    • Department of Physics, Kyoto University

  • Takuya Mikami

    • Department of Physics, Kyoto University

  • Keiko Miyazato

    • Department of Physics, Kyoto University