Non-destructive gamma-spectrometry analysis of cosmogenic radionuclides in fragments of the Koice meteorite

被引：14

作者：

Kovacik, D. ^{[1
]}

Sykora, I. ^{[1
]}

Povinec, P. P. ^{[1
]}

Porubcan, V. ^{[2
]}

机构：

[1] Comenius Univ, Dept Nucl Phys & Biophys, Fac Math Phys & Informat, Bratislava 84248, Slovakia

[2] Comenius Univ, Dept Astron Phys Earth & Meteorol, Fac Math Phys & Informat, Bratislava 84248, Slovakia

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2012年 / 293卷 / 01期

关键词：

Meteorite Kosice; Cosmogenic Radionuclides; Gamma-spectrometry; RAY SPECTROMETRY; RADIOACTIVITY; LEVEL; TECHNOLOGIES; RADIOMETRICS; COINCIDENCE; SYNERGY; SAMPLES; AL-26;

D O I：

10.1007/s10967-012-1667-4

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Results of analysis of cosmogenic radionuclides (Co-57,Co-58,Co-60, Mn-54, Sc-46, Na-22, V-48 and Al-26) in fragments of the Koice meteorite are presented and discussed. Analyses were carried out using a low-level HPGe-spectrometer placed in a lead-iron-copper shield. Twelve meteorite fragments were available for the analysis with masses from 27 to 2,163 g. The lowest massic activities were observed for Sc-46 (down to 0.1 mBq/g), and the highest for Na-22 (up to 2 mBq/g). The measured radionuclide activities showed differences between fragments, as indicated mainly by the Co-60 data, which were caused by different positions of meteorite fragments from the center of the meteorite body.

引用

页码：339 / 345

页数：7

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