Laser spectroscopy of Be+7,10 in an online ion trap

T. Nakamura, M. Wada, K. Okada, A. Takamine, Y. Ishida, Y. Yamazaki, T. Kambara, Y. Kanai, T. M. Kojima, Y. Nakai, N. Oshima, A. Yoshida, T. Kubo, S. Ohtani, K. Noda, I. Katayama, V. Lioubimov, H. Wollnik, V. Varentsov, and H. A. Schuessler
Phys. Rev. A 74, 052503 – Published 15 November 2006

Abstract

Radioactive beryllium isotope ions (Be+7 and Be+10) that are provided by a projectile fragment separator with 1GeV beams, as well as stable isotope ions (Be+9) are stored and laser cooled in an online ion trap. Their absolute transition energies of the 2sS1222pP322 transition were measured with an accuracy of 108. In this way isotope shifts of beryllium ions were obtained and the differential mass polarization parameter κ=0.286 41(70)a.u. as well as the 2sS22pP2 transition energy of an infinitely heavy beryllium ion hν=0.145 524 290(42)a.u. were determined for the first time.

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  • Received 29 August 2006

DOI:https://doi.org/10.1103/PhysRevA.74.052503

©2006 American Physical Society

Authors & Affiliations

T. Nakamura1,*, M. Wada1,†, K. Okada2, A. Takamine1,3, Y. Ishida1, Y. Yamazaki1,3, T. Kambara1, Y. Kanai1, T. M. Kojima1, Y. Nakai1, N. Oshima1,‡, A. Yoshida4, T. Kubo4, S. Ohtani5, K. Noda6, I. Katayama7, V. Lioubimov8, H. Wollnik9, V. Varentsov10, and H. A. Schuessler8

  • 1Atomic Physics Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
  • 2Department of Physics, Sophia University, Chiyoda, Tokyo 102-8554, Japan
  • 3Graduate School of Arts and Science, The University of Tokyo, Meguro, Tokyo 153-8902, Japan
  • 4Nishina Center for Accelerator Based Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
  • 5Institute for Laser Science, The University of Electro-Communicaions, Chofu, Tokyo 182-8585, Japan
  • 6Institute of Radiological Science, Inage, Chiba 263-8555, Japan
  • 7Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
  • 8Department of Physics, Texas A&M University, College Station, Texas 77843, USA
  • 9II. Physikalisches Institut, Justus-Liebig-Universität Giessen, Heinrich-Buff-Ring 16, 35392, Giessen, Germany
  • 10Kholopin Radium Institute, Saint Petersburg, Russia

  • *t-nkmr@riken.jp
  • mw@riken.jp
  • Present address: National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8568, Japan.

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Vol. 74, Iss. 5 — November 2006

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