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Radiochimica Acta

International Journal for chemical aspects of nuclear science and technology

Ed. by Qaim, Syed M.

12 Issues per year

IMPACT FACTOR increased in 2013: 1.411
5-year IMPACT FACTOR: 1.515
Rank 7 out of 33 in category Nuclear Science & Technology in the 2013 Thomson Reuters Journal Citation Report/Science Edition

SCImago Journal Rank (SJR): 0.649
Source Normalized Impact per Paper (SNIP): 0.938



Trace detection of 41Ca in nuclear reactor concrete by diode-laser-based resonance ionization mass spectrometry

P. Müller / K. Blaum / B.A. Bushaw / S. Diel / Ch. Geppert / A. Nähler / W. Nörtershäuser / N. Trautmann / K. Wendt

Citation Information: Radiochimica Acta International journal for chemical aspects of nuclear science and technology. Volume 88, Issue 8/2000, Pages 487–, ISSN (Print) 0033-8230, DOI: 10.1524/ract.2000.88.8.487, September 2009

Publication History

Published Online:

The content of the long-lived isotope 41Ca in concrete samples obtained from the biological shield of a shut-down nuclear research reactor has been determined by diode-laser-based resonance ionization mass spectrometry (RIMS). Standard procedures were applied for the chemical separation of calcium. A radioactive tracer of 47Ca was used to determine the chemical yield. The total calcium concentration in the final nitric acid solution was measured by x-ray fluorescence (XRF) spectroscopy. The RIMS measurement yielded the abundance of 41Ca relative to the total calcium content with a detection limit of 5×10-10, limited by background effects at mass 41. The detection limit corresponds to a minimum detectable specific 41Ca activity of ~100 mBq/g in the concrete. Reproducibility and accuracy were determined with 41Ca spikes and found to be in the range of 15%, limited predominantly by ion counting statistics.

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