摘要
采用电子自旋共振结合正电子湮没谱,研究了动物牙化石内珐琅层中作为年代计时的顺磁中心的性质,探讨了顺磁中心的结构,确定它是由PO_4^(8-)离子产生的F-中心。
The characterization of paramagnetic centers, used for dating, in fossil toothhas been studied by using ESR cooperated with positron annihilation spectroscopy.The Structure of the centers has been explored, showning that it is the F-centerproduced from the PO_4^(-3)ion.
出处
《复旦学报（自然科学版）》
CAS
CSCD
北大核心
1991年第1期37-43,共7页
Journal of Fudan University：Natural Science
关键词
化石
牙
正电子湮没
ESR
年代计时
fossil, tooth, electron spin resonance (ESR)
positron annihilations, ESR dating.
