Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2019, Vol. 30 ›› Issue (12): 186 doi: 10.1007/s41365-019-0704-1


Projectile fragment emission in the fragmentation of 56Fe on Al, C, and CH2 targets

Luo-Huan Wang1 • Liang-Di Huo1 • Jia-Huan Zhu1 • Hai-Rui Duan1 • Jing-Ya Wu1 • Hui-Ling Li1 • Jun-Sheng Li1 • S. Kodaira2 • N. Yasuda3 • Dong-Hai Zhang1   

  1. 1 Institute of Modern Physics, Shanxi Normal University, Linfen 041004, China
    2 Radiation Measurement Research Section, National Institute of Radiological Science, Chiba 263-8555, Japan
    3 Research Institute of Nuclear Engineering, University of Fukui, Fukui 914-0055, Japan
  • Received:2019-09-07 Revised:2019-10-07 Accepted:2019-10-13
  • Contact: Dong-Hai Zhang
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (Nos. 11075100 and 11565001), the Natural Foundation of Shanxi Province (No. 2011011001-2), and the Shanxi Provincial Foundation for Returned Overseas Chinese Scholars, China (No. 2011-058).
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Luo-Huan Wang, Liang-Di Huo, Jia-Huan Zhu, Hai-Rui Duan, Jing-Ya Wu, Hui-Ling Li, Jun-Sheng Li, S. Kodaira, N. Yasuda, Dong-Hai Zhang. Projectile fragment emission in the fragmentation of 56Fe on Al, C, and CH2 targets.Nuclear Science and Techniques, 2019, 30(12): 186     doi: 10.1007/s41365-019-0704-1

Abstract: The emission angle distribution of projectile fragments (PFs) and the temperature of PF emission sources for fragmentation of 56Fe on polyethylene, carbon, and aluminum targets at the highest energy of 497 A MeV are investigated on the basis of corrected data, using a CR-39 plastic nuclear track detector. It is found that the average emission angle of PFs increases with the decrease in PF charge for the same target, and no obvious dependence of angular distribution on the mass of the target nucleus is found for the same PF. The cumulative squared transverse momentum distribution of PFs can be well represented by a single Rayleigh distribution. The temperature of PF emission sources is extracted from the distribution, and it is about 1.0–8.0 MeV and does not depend on the mass of the target for PFs with charges of 9≤Z≤25 .

Key words: Heavy-ion collision, Projectile fragmentation, Nuclear temperature, CR-39 plastic nuclear track detector