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PUBLICATIONS

Secondary standards for 223Ra revised

Published

Author(s)

Denis E. Bergeron, Jeffrey T. Cessna, Brian E. Zimmerman

Abstract

Dose calibrator dial settings reported by NIST in 2010 (ARI v. 68, p. 1367) are now known to give erroneously low (by 10 %) activity readings. The original determinations were based on a chain of calibrations; a broken link in this chain was recently discovered. New calibration factors (i.e., dial settings), directly linked to NIST primary standards, are reported here. In addition, the raw data used to derive the factors reported in 2010 are revisited. The validity of the reevaluation is established via comparison with the new experiments and revised calibration factors for numerous clinical geometries are reported. The main conclusions of the 2010 report regarding geometry effects remain valid.
Citation
Applied Radiation and Isotopes
Volume
101
Pub Type
Journals

Download Paper

DOI Link

Keywords

Ra-223, radium, alpha-emitter, dose calibrator, dose vial, syringe, radiopharmaceutical
Nuclear physics

Citation

Bergeron, D. , Cessna, J. and Zimmerman, B. (2015), Secondary standards for 223Ra revised, Applied Radiation and Isotopes, [online], https://doi.org/10.1016/j.apradiso.2015.03.008 (Accessed May 1, 2025)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created March 5, 2015, Updated November 10, 2018