Construction of the SCRIT electron scattering facility at the RIKEN RI Beam Factory

M. Wakasugi, T. Ohnishi, S. Wang, Y. Miyashita, T. Adachi, T. Amagai, A. Enokizono, A. Enomoto, Y. Haraguchi, M. Hara, T. Hori, S. Ichikawa, T. Kikuchi, R. Kitazawa, K. Koizumi, K. Kurita, T. Miyamoto, R. Ogawara, Y. Shimakura, H. TakeharaT. Tamae, S. Tamaki, M. Togasaki, T. Yamaguchi, K. Yanagi, T. Suda

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)


The SCRIT electron scattering facility, aiming at electron scattering off short-lived unstable nuclei, has been constructed at the RIKEN RI Beam Factory. This facility consists of a racetrack microtron (RTM), an electron storage ring (SR2) equipped with the SCRIT system, and a low-energy RI separator (ERIS). SCRIT (self-confining radioactive isotope ion targeting) is a novel technique to form internal targets in an electron storage ring. Experiments for evaluating performance of the SCRIT system have been carried out using the stable 133Cs1+ beam and the 132Xe1+ beam supplied from ERIS. Target ions were successfully trapped in the SCRIT system with 90% efficiency at a 250 mA electron beam current, and luminosity exceeding 1026/(cm2 s) was maintained for more than 1 s. Electrons elastically scattered from the target ions were successfully measured. Applicability of the SCRIT system to electron scattering for unstable nuclei has been established in experiments.

Original languageEnglish
Pages (from-to)668-673
Number of pages6
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Issue numberPART B
Publication statusPublished - 2013 Dec 15


  • Electron scattering
  • Ion trapping
  • Unstable nuclei

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


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