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G. Henriksen, P. Hoff, J. Alstad and R. H. Larsen, “223Ra for Endoradiotherapeutic Applications Prepared from an Immobilized 227Ac/227Th Source,” Radiochimica Acta, Vol. 89, No. 10, 2001, pp. 661-666. doi:10.1524/ract.2001.89.10.661

has been cited by the following article:

• TITLE: Liquid Scintillation Spectroscopy of 227Ac and Daughters

  AUTHORS: D. Ø. Eriksen, B. Ryningen, B. Schoultz, G. Salberg, R. H. Larsen

  KEYWORDS: Dipex; LSC; Ra-223; Ac-227; Spectroscopy; Quantulus

  JOURNAL NAME: Journal of Analytical Sciences, Methods and Instrumentation, Vol.2 No.1, March 13, 2012

  ABSTRACT: In order to find a fast and reliable method for measurements of organic and aqueous liquid phases containing a- and b-emitters in mixtures we developed a method based on Liquid Scintillation Counting (LSC) using Quantulus Low Level Spectrometer. The use of low level LSC instead of g-spectroscopy allows reduced sample activity, shorter count rates and use of sample changer. This is of great advantage when many samples have to be measured during a short time period. The main nuclides of interest were 227Ac and 223Ra. 227Ac does not have any appropriate g-radiation, therefore measurements of the nuclei of interest must be based on a- and b-spectroscopy. In this study, it is shown that analyses of the radionuclidic purity of the liquid phases could be determined by a- and b-spectroscopy with Quantulus.