Laboratories
SCRIT Team
Masanori WAKASUGI
Laboratory Head
Masanori WAKASUGI (D.Sci.)
mail

Research Areas

We aim at the investigation of internal nuclear structure of short-lived radioactive nuclei (RI) by means of electron scattering. Electron scattering for RI's has never been performed duo to inability to make target of these nuclei. An electron-RI collider system, which requires a huge accelerator complex, has so far been unique solution to overcome the difficulty. We have developed a novel internal target system named SCRIT (Self-Confining RI Ion Target) in an electron storage ring to make the experiment easier with much compact experimental system. We have finished the commissioning of the electron accelerator system, which has constructed in last year, and a SCRIT devices have been installed into the straight section of the storage ring (SR2). The test experiment using stable isotopes is planed in the beginning of next year. In this electron scattering facility, we will construct the U photo-fission ion source for RI production and an ISOL system for RI injection into the SCRIT device. They are now manufacturing.

Research Subject

  1. Developement of the SCRIT technology and electron scattering for unstable nuclei

Related links

  1. RIKEN Nishina Center for Accelerator-Based Science Website_Laboratories PageNew Window

RIKEN RESEARCH

September 12,2008
Right on target
Short-lived nuclei can be efficiently trapped for study in the electron beam of a high-energy electron storage ring New Window

List of Selected Publications

  1. T.Suda, M.Wakasugi, T.Emoto, K.Ishii, S.Ito, K.Kurita, A.Kuwajima, A.Noda, T.Shirai, T.Tamae, H.Tongu, S.Wang, and Y.Yano,:
    "First Demonstration of Electron Scattering usin a Novel Ion-Trap Target Developed for Short-Lived Nuclei"
    Phys. Rev. Letter, in press
  2. M.Wakasugi. T.Emoto, S.Ito, S.Wang, T.Suda, Y.Yano, K.Kurita, K.Ishii, T.Tamae, A.Kuwajima, A.Noda, T.Shirai, and H.Tongu,:
    "Electron Scattering Based on Novel Internal Target Technique SCRIT"
    Eur. Phys. J., in press
  3. M.Wakasugi, T.Emoto, Y.Furukawa, K.Ishii, S.Ito, T.Koseki, K.Kurita, A.Kuwajima, T.Masuda, A.Morikawa, M.Nakamura, A.Noda, T.Ohnishi, T.Shirai, T.Suda, H.Takada, T.Tamae, H.Tongu, S.Wang, and Y.Yano,:
    "Novel Internal Target for Electron Scattering off Unstable Nuclei"
    Phys. Rev. Lett., 100, 164801 (2008).
  4. M.Wakasugi, K,Ishii, S.Ito, T.Emoto, K.Kurita, A.Kuwajima, T.Koseki, T.Shirai, T.Suda, T.Tamae, H.Tongu, A.Noda, S.Wang, and Y.Yano,:
    "Development of Self-Confining RI Ion Target (SCRIT) at the KSR in Kyoto University"
    J. Part. Acc. Soc. Japan, 4, 228 (2007)
  5. T. Suda and M. Wakasugi,:
    "Structure Study of Unstable Nuclei by Electron Scattering"
    Prog. Part. Nucl. Phys., 55, 417 (2005)
  6. M.Wakasugi, S.Ito, T.Emoto, T.Ohnishi, K.Kurita, T.Koseki, T.Shirai, T.Suda, H.Takeda, T.Tamae, H.Tongu, M.Nakamura, A.Noda, Y.Furukawa, T.Mashda, H.Morikawa, Y.Yano, S.Wang,:
    "Self-Confining Radioactive Ion Target (SCRIT) for Electron Scattering off Unstable Nuclei"
    J. Part. Acc. Soc. Japan, 2, 337 (2005)
  7. M.Wakasugi, T.Suda, Y.Yano,:
    "A New Method for Electron-Scattering Experiment usin a Self-Confining Radioactive Ion Target in an Electron Storage Ring"
    Nucl. Instrum. Meth. A532, 216 (2004)

Members

Principal Investigator

Masanori WAKASUGI
Laboratory Head

Staff Scientist

Tetsuya OHNISHI
Technical Scientist

Postdoctoral Fellow

Yuji MIYASHITA
Special Postdoctoral Researcher