Ion-Beam-Induced Luminescence of LiF Using Negative Ions
Meng-Lin Qiu1 , Ying-Jie Chu1 , Guang-Fu Wang1,2** , Mi Xu1 , Li Zheng1
1 College of Nuclear Science and Technology, Beijing Normal University, Beijing 1008752 Beijing Radiation Center, Beijing 100875
Abstract ：Negative ion-beam-induced luminescence (IBIL) measurements of a pure LiF crystal using 20 keV H$^{-}$ are performed to monitor the formation and annihilation of luminescence centers during ion irradiation. Several emission bands are observed in the IBIL spectra and the evolvement mechanisms of the corresponding centers are identified. The difference between the IBIL measurements using positive ions and negative ions is that the intensities of luminescence centers can reach the maxima at lower fluences under negative-ion irradiation due to free charge accumulation.
收稿日期: 2016-08-31
出版日期: 2016-12-29
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2017, Vol. 34 
