Thermal induced EPR signals in tooth enamel

被引：16

作者：

Fattibene, P ^{[1
]}

Aragno, D ^{[1
]}

Onori, S ^{[1
]}

Pressello, MC ^{[1
]}

机构：

[1] Ist Super Sanita, Phys Lab, I-00161 Rome, Italy

来源：

RADIATION MEASUREMENTS | 2000年 / 32卷 / 5-6期

关键词：

electron paramagnetic resonance; tooth enamel;

D O I：

10.1016/S1350-4487(00)00068-8

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：

Electron paramagnetic resonance (EPR) spectroscopy was used to detect the effects of temperature on powdered human tooth enamel, not irradiated in the laboratory. Samples were heated at temperature between 350 and 450, at 600 and at 1000 degreesC, for different heating times, between 6 min and 39 h. Changes in the EPR spectra were detected, with the formation of new signals. Possible correlation between the changes in EPR spectra and modifications in the enamel and in the mineral phase of bone detected with other techniques is discussed. The implications for dosimetric applications of signals induced by overheating due to mechanical friction during sample preparation are underlined. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：793 / 798

页数：6

共 22 条

[1] CHANGES IN THE PARAMAGNETIC CENTERS IN IRRADIATED AND HEATED DENTAL ENAMEL STUDIED USING ELECTRON-PARAMAGNETIC RESONANCE [J].