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Chinese Physics C> 1993, Vol. 17> Issue(2) : 173-178 

Fission Fragment Angular Correlation in the Reaction Induced by 84.0MeV 16O Bombarded 238U

  •  Atomic Energy Institute of China,Beijing 102413

  • Fission fragment angular distribution and angular correlation in the reaction induced by 84.0MeV 16O bombarded 238U have been measured by using two position-sensitive PPAC with large area.Transfer fission has been removed from total fission using fission fragment angular correlation technique.The contribution to the total fission cross section arising from transfer is about 10%.The anisotropy of fission fragment for transfer-fission is rather small,thus the removal of the transfer fission has little effect on the total fragment angular distribution.Indeed the anisotropy becomes larger by about 5% and anomalously anisotropies still persist.
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    [1] M. Beckerman, Phys. Rep., 129 (1985), 145.[2]R. Vandenbosch et al., Phys. Rev. Lett., 58 (1986), 1234.[3]Huangqiao Zhang et al., Phys. Lett., B 218 (1989), 133.[4]B. B. Back et al., Sixth WintA9 Workshop on Nuclear Dynamics Jackson Hoe, Wyotniug, U.| S.A. (1990).[5]J. P. Lestone et al., Nucl. Phys., A 509 (1990), 178.[6]谭继廉等,核电子学与探测技术,8(1988), 145.[7]戴光曦等,高能物理与核物理,14(1990), 629,[8]钱兴，中国科学院近代物所博士论文(1991).[9]张焕乔等“近垒及垒下能区16O+378U裂变碎片角分布的测量”,高能物理与核物理.待发表.

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QIAN Xing, ZHANG Huan-Qiao, LIU Zu-Hua, XU Jin-Cheng, CHEN Shao-Lin, XU Kan and LU Li-Xin. Fission Fragment Angular Correlation in the Reaction Induced by 84.0MeV 16O Bombarded 238U[J]. Chinese Physics C, 1993, 17(2): 173-178.
QIAN Xing, ZHANG Huan-Qiao, LIU Zu-Hua, XU Jin-Cheng, CHEN Shao-Lin, XU Kan and LU Li-Xin. Fission Fragment Angular Correlation in the Reaction Induced by 84.0MeV 16O Bombarded 238U[J]. Chinese Physics C, 1993, 17(2): 173-178. shu
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Received: 1900-01-01
Revised: 1900-01-01
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Fission Fragment Angular Correlation in the Reaction Induced by 84.0MeV 16O Bombarded 238U

    Corresponding author: QIAN Xing,
  • Atomic Energy Institute of China,Beijing 102413
  • Received Date: 1900-01-01
  • Accepted Date: 1900-01-01
  • Available Online: 1993-02-05

Abstract: Fission fragment angular distribution and angular correlation in the reaction induced by 84.0MeV 16O bombarded 238U have been measured by using two position-sensitive PPAC with large area.Transfer fission has been removed from total fission using fission fragment angular correlation technique.The contribution to the total fission cross section arising from transfer is about 10%.The anisotropy of fission fragment for transfer-fission is rather small,thus the removal of the transfer fission has little effect on the total fragment angular distribution.Indeed the anisotropy becomes larger by about 5% and anomalously anisotropies still persist.

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