Standardization of Pr-142 activity concentration

Yeltepe E., YÜCEL H.

APPLIED RADIATION AND ISOTOPES, vol.134, pp.263-268, 2018 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 134
  • Publication Date: 2018
  • Doi Number: 10.1016/j.apradiso.2017.07.040
  • Journal Name: APPLIED RADIATION AND ISOTOPES
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.263-268
  • Keywords: Pr-142, Standardization, CIEMAT-NIST method, Liquid scintillation counting, Re-entrant ionization chamber, Gamma-ray spectrometry, EFFICIENCY
  • Ankara University Affiliated: Yes

Abstract

Pr-142 (praseodymium-142), a potential radionuclide for brachytherapy, was produced after irradiating high purity natural Pr2O3 powder in a research reactor. The irradiated powder was then dissolved in acids and diluted for measurement. Several radioactivity measurement methods were used in the standardization of Pr-142 radionuclide. This work reports the results of standardization of Pr-142 with CIEMAT/NIST efficiency tracing method, gamma spectrometry and a calibrated ionization chamber. The activity measured from different standardization methods are compatible with each other within the uncertainty limits. The CIEMAT/NIST efficiency tracing method gives the lowest uncertainty and is a reliable method for the standardization of this radionuclide.