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

Kováčik, D.; Sýkora, I.; Povinec, P.; Porubčan, V.
July 2012
Journal of Radioanalytical & Nuclear Chemistry;Jul2012, Vol. 293 Issue 1, p339
Academic Journal
Results of analysis of cosmogenic radionuclides (Co, Mn, Sc, Na, V and Al) in fragments of the Košice 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 (down to 0.1 mBq/g), and the highest for Na (up to 2 mBq/g). The measured radionuclide activities showed differences between fragments, as indicated mainly by the Co data, which were caused by different positions of meteorite fragments from the center of the meteorite body.


Related Articles

  • Analysis of 26Al in meteorite samples by coincidence gamma-ray spectrometry. Povinec, P. P.; Sýkora, I.; Porubčan, V.; Ješkovský, M. // Journal of Radioanalytical & Nuclear Chemistry;Dec2009, Vol. 282 Issue 3, p805 

    Large volume Ge-detectors have been used for the analysis of positron emitters of cosmogenic origin in extraterrestrial samples including lunar samples and meteorites. We present results from the analysis of 26Al in the Rumanová chondrite which was found in 1994 in Slovakia. A slide of the...

  • Assessment of gamma-ray emissions from natural and manmade decorative stones. Kitto, Michael E.; Haines, Douglas K.; Menia, Traci A. // Journal of Radioanalytical & Nuclear Chemistry;Nov2009, Vol. 282 Issue 2, p409 

    Decorative stones (32 natural and 18 manufactured) and five ceramic tiles that are used in home interiors were measured with gamma-ray spectrometry, to identify and quantify the naturally occurring radionuclides. Activity concentrations of the radioisotopes varied by more than two orders of...

  • High-sensitivity HPGe gamma-spectrometry analysis of radionuclides in Martian meteorites. Povinec, Pavel; Sýkora, Ivan; Kováčik, Andrej; Koeberl, Christian // Journal of Radioanalytical & Nuclear Chemistry;Mar2016, Vol. 307 Issue 3, p2403 

    Analysis of cosmogenic radionuclides in Martian meteorites is a great radioanalytical challenge because of the high scientific value of these meteorites, and necessity to apply non-destructive methods of analysis, e.g., low-level gamma-ray spectrometry. The measured Mn, Na, and Al levels in two...

  • Analysis of Gamma-Ray Spectra Using Levenberg-Marquardt Method. Fatah, A. H.; Ahmed, A. H. // World Academy of Science, Engineering & Technology;Mar2011, Issue 51, p269 

    No abstract available.

  • Natural Radioactivity of Beach Sand Samples in the Tripoli Region, Northwest Libya. El-Kameesy, S. U.; El-Ghany, S. Abd; El-Minyawi, S. M.; Miligy, Z.; El-Mabrouk, E. M. // Turkish Journal of Engineering & Environmental Sciences;2008, Vol. 32 Issue 4, p245 

    A comprehensive study was conducted to determine the radioactivity concentrations of beach sand samples from different sites along the coast of Tripoli, northwest Libya, using high resolution γγ-ray spectroscopy. Collection of samples was carried out during low tide, where it was possible...

  • Low-level measurement of the cosmogenic 22Na radionuclide in fresh water by ultra low-background gamma-ray spectrometry after simple radiochemical separation. Sakaguchi, A.; Yamamoto, M.; Ohtsuka, Y.; Sasaki, K.; Yokota, K.; Komura, K. // Journal of Radioanalytical & Nuclear Chemistry;Sep2003, Vol. 258 Issue 1, p101 

    A simple analytical method was developed for the determination of cosmogenic 22Na radionuclide in fresh water samples by ultra low-background g-ray spectrometry after radiochemical separation. The method consists in pre-concentration of 22Na(Na) by a ion exchange resin column from a large volume...

  • Modeling Background Attenuation by Sample Matrix in Gamma Spectrometric Analyses. Bastos, Rodrigo O.; Appoloni, Carlos R. // AIP Conference Proceedings;8/7/2008, Vol. 1034 Issue 1, p415 

    In laboratory gamma spectrometric analyses, the procedures for estimating background usually overestimate it. If an empty container similar to that used to hold samples is measured, it does not consider the background attenuation by sample matrix. If a “blank” sample is measured, the...

  • WWW-based remote analysis framework for UniSampo and Shaman analysis software. Aarnio, P. A.; Ala-Heikkilä, J. J.; Hakulinen, T. T.; Nikkinen, M. T.; Routti, J. T. // Journal of Radioanalytical & Nuclear Chemistry;Apr2005, Vol. 264 Issue 1, p255 

    UniSampo and Shaman are well-established analytical tools for gamma-ray spectrum analysis and the subsequent radionuclide identification. These tools are normally run locally on a Unix or Linux workstation in interactive mode. However, it is also possible to run them in batch/non-interactive...

  • Reliability of the automatic gamma-ray spectrum analysis procedure for results near the detection limit. Glavič-Cindro, D.; Korun, M.; Vodenik, B. // Journal of Radioanalytical & Nuclear Chemistry;Feb2007, Vol. 271 Issue 2, p467 

    Peak search and analysis of the programs often associate peaks found in gamma-ray spectra of the radionuclides that are not present in the sample. Such radionuclides have to be excluded from the reported results. The dilemmas connected with reporting of the results near the detection limit are...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics