Measurements of the interaction cross-sections for 14 Be and 14,15 B as projectiles with a new scheme at RIBLL

A. Ozawa, Y. Z. Cai, Z. Q. Chen, M. Chiba, D. Q. Fang, Z. G. Guo, T. Izumikawa, J. X. Li, R. S. Mao, T. Ohnishi, W. Q. Shen, Toshimi Suda, Z. Y. Sun, T. Suzuki, I. Tanihata, W. D. Tian, J. S. Wang, M. Wang, Y. B. Wei, G. Q. XiaoZ. G. Xiao, T. Yamaguchi, Y. Yamaguchi, A. Yoshida, W. L. Zhan, H. Y. Zhang, T. Zheng, C. Zhong

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We have measured the interaction cross-sections (σ I ) for light neutron-rich nuclei ( 14 Be, 14,15 B) at ∼50A MeV at the Radioactive Ion Beam Line in Lanzhou (RIBLL) in IMP with a new scheme. In this scheme, a carbon reaction target was installed at the intermediate focusing point at RIBLL. This scheme allowed us to identify particles before and after the reaction target unambiguously. However, this scheme might suffer a large loss of transmission efficiency in the second half of RIBLL. We checked this effect by changing the emittance of the RI beams. The results showed that a correction of the transmission efficiency is needed to deduce σ I . We performed a Monte Carlo type simulation and tried to deduce σ I for the above nuclei. Finally, we obtained reasonable σ I although their error bars were fairly large. The results were compared with calculations by an energy-dependent semi-empirical formula.

Original languageEnglish
Pages (from-to)155-160
Number of pages6
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume247
Issue number2
DOIs
Publication statusPublished - 2006 Jun 1
Externally publishedYes

Keywords

  • Measured interaction σ
  • Nuclear reactions C( Be, Be), ( B, B), E ∼ 50 MeV/nucleon

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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    Ozawa, A., Cai, Y. Z., Chen, Z. Q., Chiba, M., Fang, D. Q., Guo, Z. G., Izumikawa, T., Li, J. X., Mao, R. S., Ohnishi, T., Shen, W. Q., Suda, T., Sun, Z. Y., Suzuki, T., Tanihata, I., Tian, W. D., Wang, J. S., Wang, M., Wei, Y. B., ... Zhong, C. (2006). Measurements of the interaction cross-sections for 14 Be and 14,15 B as projectiles with a new scheme at RIBLL Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 247(2), 155-160. https://doi.org/10.1016/j.nimb.2006.01.054