BigRIPS as a high resolution spectrometer for pionic atoms

T. Nishi, G. P.A. Berg, M. Dozono, H. Fujioka, N. Fukuda, T. Furuno, H. Geissel, R. S. Hayano, N. Inabe, K. Itahashi, S. Itoh, D. Kameda, T. Kubo, H. Matsubara, S. Michimasa, K. Miki, H. Miya, Y. Murakami, M. Nakamura, N. NakatsukaS. Noji, K. Okochi, S. Ota, H. Suzuki, K. Suzuki, M. Takaki, H. Takeda, Y. K. Tanaka, K. Todoroki, K. Tsukada, T. Uesaka, Y. N. Watanabe, H. Weick, H. Yamada, K. Yoshida

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


We are presently working on a new project 'pionic atom factory project' at RIBF. The project aims at precision spectroscopy of the energy spectrum of the pionic atom for a wide range of elements, using missing-mass spectroscopy of the (d,3He) reaction near the π- emission threshold. For this project, we developed a new ion optics for BigRIPS using the dispersion-matching method. In this optics the BigRIPS beam line is used as a high resolving-power forward angle spectrometer to momentum-analyze 3He. We are aiming for a spectral resolution of <400 keV (FWHM). An overview of the new optics and the result of a pilot experiment are reported.

Original languageEnglish
Pages (from-to)290-293
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Issue numberPART B
Publication statusPublished - 15-12-2013
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation


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