New energy-degrading beamline for in-flight RI beams, OEDO

S. Michimasa, N. Imai, M. Dozono, J. W. Hwang, K. Yamada, S. Ota, K. Yoshida, Y. Yanagisawa, K. Kusaka, M. Ohtake, M. Matsushita, D. S. Ahn, O. Beliuskina, N. Chiga, K. Chikaato, N. Fukuda, S. Hayakawa, E. Ideguchi, K. Iribe, C. IwamotoS. Kawase, K. Kawata, N. Kitamura, S. Masuoka, H. Miyatake, D. Nagae, R. Nakajima, T. Nakamura, K. Nakano, S. Omika, H. Otsu, H. Sakurai, P. Schrock, H. Shimizu, Y. Shimizu, T. Sumikama, X. Sun, D. Suzuki, H. Suzuki, M. Takaki, M. Takechi, H. Takeda, S. Takeuchi, T. Teranishi, R. Tsunoda, H. Wang, Y. Watanabe, Y. X. Watanabe, K. Wimmer, K. Yako, H. Yamaguchi, L. Yang, H. Yoshida, S. Shimoura

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


The Optimized Energy Degrading Optics (OEDO) beamline was constructed at RIBF to produce slowed-down, well-focused radioactive-isotope beams at 10–50 MeV/u, and began operation in June 2017. We examined the performance of the OEDO system by decelerating high-energy medium-mass radioactive ions. The main components of the OEDO beamline are two superconducting quadrupole triplet magnets and one radio-frequency deflector. This paper introduces the unique design of the ion optics of the beamline and describes the achieved performance of the beamline in the commissioning and following physics experiments. We will discuss the properties of energy-degraded beams produced by the OEDO beamline by comparison of simulations and the achieved performance.

Original languageEnglish
Pages (from-to)143-147
Number of pages5
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Publication statusPublished - Jan 15 2020

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation


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