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DOI:	10.1371/journal.pone.0150346
论文题名:	Evaluating the Potential of Q-Band ESR Spectroscopy for Dose Reconstruction of Fossil Tooth Enamel
作者:	Verónica Guilarte; François Trompier; Mathieu Duval
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2016
发表日期:	2016-3-1
卷:	11, 期:3
语种:	英语
英文关键词:	Teeth ; Electron spin resonance spectroscopy ; Spectrometers ; Absorption spectroscopy ; Pleistocene epoch ; Fossils ; Capillary tubes ; Paleobiology
英文摘要:	The potential of Q-band Electron Spin Resonance (ESR) for quantitative measurements has been scarcely evaluated in the literature and its application for dose reconstruction of fossil tooth enamel with dating purposes remains still quite unknown. Hence, we have performed a comparative study based on several Early to Middle Pleistocene fossil tooth samples using both X- and Q-band spectroscopies. Our results show that Q-band offers a significant improvement in terms of sensitivity and signal resolution: it allows not only to work with reduced amounts of valuable samples (< 4 mg), but also to identify different components of the main composite ESR signal. However, inherent precision of the ESR intensity measurements at Q-band is clearly lower than that achieved at X-band, highlighting the necessity to carry out repeated measurements. All dose values derived from X- and Q-band are nevertheless systematically consistent at either 1 or 2 sigma. In summary, our results indicate that Q-band could now be considered as a reliable tool for ESR dosimetry/dating of fossil teeth although further work is required to improve the repeatability of the measurements.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0150346&type=printable
Citation statistics:
资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/25134
Appears in Collections:	过去全球变化的重建影响、适应和脆弱性科学计划与规划气候变化与战略全球变化的国际研究计划气候减缓与适应气候变化事实与影响

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journal.pone.0150346.PDF（715KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	View Download

作者单位:

Centro Nacional de Investigación sobre la Evolución Humana (CENIEH), Burgos, Spain;Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Fontenay-aux-Roses, France;Centro Nacional de Investigación sobre la Evolución Humana (CENIEH), Burgos, Spain

Recommended Citation:

Verónica Guilarte,François Trompier,Mathieu Duval. Evaluating the Potential of Q-Band ESR Spectroscopy for Dose Reconstruction of Fossil Tooth Enamel[J]. PLOS ONE,2016-01-01,11(3)

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