摘要
The isotopic cross sections of residual nuclei produced in fragmentation reactions of ^(18)O projectiles impinging on a carbon target at energies near 260 MeV/nucleon were measured at the HIRFL facility in Lanzhou(China).A full identification of atomic and mass numbers of fragments was achieved from the determination of their magnetic rigidity,energy loss,and time of flight.The production cross sections for a dozen of nitrogen,carbon,and boron isotopes were determined with uncertainties below 30% for most of the cases.The obtained cross sections for N and B isotopes show a rather good agreement with previous experimental data obtained with different projectile energies.The cross sections for some C isotopes seem to exhibit a dependence on the projectile energy.A comparison of the data and several theoretical model calculations are presented.
作者
Xiao-Dong Xu
Ya-Zhou Sun
Shi-Tao Wang
Bo Mei
Shu-Ya Jin
Xue-Heng Zhang
Zhi-Yu Sun
Yi-Xuan Zhao
Shu-Wen Tang
Yu-Hong Yu
Duo Yan
Fang Fang
Yong-Jie Zhang
Shao-Bo Ma
徐晓栋;孙亚洲;王世陶;梅波;金树亚;章学恒;孙志宇;赵亦轩;唐述文;余玉洪;闫铎;方芳;张永杰;马少波(CAS Key Laboratory of High Precision Nuclear Spectroscopy,Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China;School of Nuclear Science and Technology,University of Chinese Academy of Sciences,Beijing 100049,China;Sino-French Institute of Nuclear Engineering and Technology,Sun Yat-sen University,Zhuhai 519082,China;School of Nuclear Science and Technology,Lanzhou University,Lanzhou 730000,China)
基金
Supported in part by the National Natural Science Foundation of China(11905260,12005314)
the Western Light Project of Chinese Academy of Sciences,the Heavy Ion Research Facility in Lanzhou(HIRFL)
the open research project of CAS large research infrastructures。
