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Chinese Physics C> 2002, Vol. 26> Issue(7) : 683-689 

Measurement of Total Cross Sections of Nuclei Produced by 20Ne Bombing at 9Be Target

  •  Institute of Mondern Physics, The Chinese Academy of Science, Lanzhou 730000, China

  • The measurement of total reaction cross section is of great importance in studying the structure and reaction mechanisms of exotic nuclei produced by radioactive nuclear beam (RNB). The measurements of the total reaction cross section of fragments produced by 20Ne (80MeV/u)+9Be(3mm) on Si target at intermediate energies were performed on RIBLL by using the transmission method which is the most convenient and credible method in use. The setting-up of the telescope detectors is introduced. And the experimental procedure and experimental results are also described. From the results, we can see the trends of the total cross sections with neutron number in each nuclear isotope chain. The results for some exotic nuclei predicted by theories, such as 12N,17F and 17Ne, are compared with those of their neighbors. And our results show that 12N has an exotic structure, but 17F and 17Ne have not.
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    [1] . Tanihata I et al. Phys. Rev. Lett.,1985,55:2626 2. Minamisono T et al. Phys. Rev. Lett.,1992,69:20583. Schwab W et al. Z. Phys.,1995,A350:2834. Kelley J H et al. Phys. Rev. Lett.,1996,77:5020 5. Warner R E et al. Phys. Rev.,1995,C52:1166 6. Negoita F et al. Phys. Rev.,1996,C54:1787 7. Tanihata I et al. Phys. Lett.,1988,B206:592 8. Anne R et al. Phys. Lett.,1990,B250:19 9. Saint-Laurent M G et al. Z. Phys.,1989,A332:457 10. Mittig W et al. Phys. Rev. Lett.,1987,59:1889 11. ZHAN Wen-Long et al. Radioactive Ion Beam in Lanzhou, The1st Asia Particle Accelerator Conference(APAC 98),March 23—27,1998,KEK, Tsukuba, Japan. 12. GUO Zhong-Yan et al. Acta Physica Sinica (Overseas Edition),1999,8(1):26 13. ZHAO You-Xiong et al. Nucl. Instr. Meth.,1995,A355:464. 14. LI Jia-Xing et al. Nuclear Techniques.,2001,24(4):309(in Chinese)(李加兴等.核技术,2001,24(4):309) 15. Lalazissis G A et al. Phys. Rev.,1998,C58:1467

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LI Jia-Xing, GUO Zhong-Yan, XIAO Guo-Qing, ZHAN Wen-Long, SUN Zhi-Yu, WANG Jian-Song, TIAN Wen-Dong, WANG Meng, CHEN Zhi-Qiang, WANG Wu-Sheng, NING Zhen-Jiang, WANG Jian-Feng and MAO Rui-Shi. Measurement of Total Cross Sections of Nuclei Produced by 20Ne Bombing at 9Be Target[J]. Chinese Physics C, 2002, 26(7): 683-689.
LI Jia-Xing, GUO Zhong-Yan, XIAO Guo-Qing, ZHAN Wen-Long, SUN Zhi-Yu, WANG Jian-Song, TIAN Wen-Dong, WANG Meng, CHEN Zhi-Qiang, WANG Wu-Sheng, NING Zhen-Jiang, WANG Jian-Feng and MAO Rui-Shi. Measurement of Total Cross Sections of Nuclei Produced by 20Ne Bombing at 9Be Target[J]. Chinese Physics C, 2002, 26(7): 683-689. shu
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Received: 2001-08-21
Revised: 1900-01-01
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Measurement of Total Cross Sections of Nuclei Produced by 20Ne Bombing at 9Be Target

    Corresponding author: LI Jia-Xing,
  • Institute of Mondern Physics, The Chinese Academy of Science, Lanzhou 730000, China
  • Received Date: 2001-08-21
  • Accepted Date: 1900-01-01
  • Available Online: 2002-07-05

Abstract: The measurement of total reaction cross section is of great importance in studying the structure and reaction mechanisms of exotic nuclei produced by radioactive nuclear beam (RNB). The measurements of the total reaction cross section of fragments produced by 20Ne (80MeV/u)+9Be(3mm) on Si target at intermediate energies were performed on RIBLL by using the transmission method which is the most convenient and credible method in use. The setting-up of the telescope detectors is introduced. And the experimental procedure and experimental results are also described. From the results, we can see the trends of the total cross sections with neutron number in each nuclear isotope chain. The results for some exotic nuclei predicted by theories, such as 12N,17F and 17Ne, are compared with those of their neighbors. And our results show that 12N has an exotic structure, but 17F and 17Ne have not.

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