Pulsed ESR measurements on fossil teeth

被引：13
|
作者：
Grun, R
Kohno, H
Tani, A
Yamanaka, C
Ikeya, M
Huang, HP
机构：
[1] OSAKA UNIV,DEPT EARTH & SPACE SCI,TOYONAKA,OSAKA 560,JAPAN
[2] UNIV SCI & TECHNOL CHINA,DEPT EARTH & SPACE SCI,HEFEI 230026,PEOPLES R CHINA
来源：
RADIATION MEASUREMENTS | 1997年 / 27卷 / 02期
关键词：
D O I：
10.1016/S1350-4487(96)00109-6
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
Deconvolution of X-band spectra has shown that the signal that is used in dating studies is composed of at least three different peaks. Our measurements show that pulsed ESR can separate the axial signal from two wider peaks that are suspected of interfering with any reliable dose assessment. However, its significantly lower sensitivity prohibits the routine application of pulsed ESR in dating studies. The spin relaxation time, T-2, of the CO2- centre as determined from spin echo decay curves, is in the range of about 500 to 640 ns, depending on the spin concentration. (C) 1997 Elsevier Science Ltd.
引用
收藏
页码：425 / 431
页数：7
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