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Hyperfine Interactions

, Volume 222, Issue 1–3, pp 87–93 | Cite as

Production of 62Zn radioactive nuclear beam and on-line PAC investigation of quadrupole interaction in nano-magnetic material Fe73.5Cu1Nb3Si13.5B9

  • Yi Zuo
  • Yongnan Zheng
  • Yongjun Xu
  • Baoqun Cui
  • Liqiang Li
  • Yingjun Ma
  • Fan Ping
  • Daqing Yuan
  • Shuang Gao
  • Shengyun Zhu
Article
  • 90 Downloads

Abstract

An Isotope Separator On-Line (ISOL), dedicated to on-line perturbed angular correlation (PAC) and positron annihilation spectroscopy (PAS), has been constructed at CIAE based on the HI-13 tandem accelerator, and a 30 keV radioactive beam of 62Zn with intensity of 2 ×107/s produced by it. Using the 62Zn radioactive beam the investigation of the nano-crystalline soft magnetic Fe73.5Cu1Nb3Si13.5B9 materials has been fulfiled for the first time by the on-line time differential PAC technique. Two quadrupole interaction frequencies ω 01 ( = 440 Mrad/s) and ω 02 ( = 90 Mrad/s) were gained, indicating there are two implantation sites of 62Zn. The frequency ω 02 shows a fluctuation of the crystal lattice constants and proves the characteristic distribution model of nano-crystalline grain boundary. The frequency ω 01 demonstrates that the implanted 62Zn occupies the site of the ordered grain core. The fractions of ω 01 and ω 02 are f01 = 38 % and f02 = 62 %, respectively.

Keywords

PAC ISOL Nano-magnetic material 

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Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  • Yi Zuo
    • 1
  • Yongnan Zheng
    • 1
  • Yongjun Xu
    • 1
  • Baoqun Cui
    • 1
  • Liqiang Li
    • 1
  • Yingjun Ma
    • 1
  • Fan Ping
    • 1
  • Daqing Yuan
    • 1
  • Shuang Gao
    • 2
  • Shengyun Zhu
    • 1
  1. 1.China Institute of Atomic EnergyBeijingPeople’s Republic of China
  2. 2.China Institute of Nuclear Information and EconomicsBeijingPeople’s Republic of China

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