Analyses of radionuclides in the Oued Awlitis 001 and Galb Inal lunar meteorites by HPGe gamma-ray spectrometry期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Analyses of radionuclides in the Oued Awlitis 001 and Galb Inal lunar meteorites by HPGe gamma-ray spectrometry

Authors:	Povinec Pavel P Sýkora Ivan Ferrière Ludovic Koeberl Christian

Institution:	1.Department of Nuclear Physics and Biophysics, Faculty of Mathematics, Physics and Informatics, Comenius University, 84248, Bratislava, Slovakia ;2.Natural History Museum, Burgring 7, 1010, Vienna, Austria ;3.Department of Lithospheric Research, University of Vienna, 1090, Vienna, Austria ;

Abstract:	Highly sensitive nondestructive HPGe gamma-ray spectrometry was used for the analysis of the cosmogenic (²⁶Al) and primordial (⁴⁰K, ²³⁸U, and ²³²Th) radionuclides in the Oued Awlitis 001 and Galb Inal lunar meteorites. The measured ²⁶Al activities were very different (84.0?±?4.8 dpm/kg vs. 8.4?±?1.2 dpm/kg, respectively), mainly because of different cosmic-ray exposure ages of the investigated meteorites. The pre-atmospheric radii were 5?±?1 cm and 11?±?2 cm, respectively, which would result in total pre-atmospheric masses in the range of 0.7–2.5 kg and 7–23 kg, respectively.

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