Activity measurement of mixed complex radionuclide like 152Eu with different methods

Anuradha Ravindra; D B Kulkarni; Ritu Sharma; S S Dahiwale; Sanjay D Dhole; Sajin Prasad S; V Sathian

doi:10.1016/j.apradiso.2022.110228

Activity measurement of mixed complex radionuclide like ¹⁵²Eu with different methods

Appl Radiat Isot. 2022 Jul:185:110228. doi: 10.1016/j.apradiso.2022.110228. Epub 2022 Apr 7.

Authors

Anuradha Ravindra¹, D B Kulkarni², Ritu Sharma², S S Dahiwale³, Sanjay D Dhole³, Sajin Prasad S⁴, V Sathian²

Affiliations

¹ Radiation Safety Systems Division, BARC, Mumbai, India. Electronic address: [email protected].
² Radiation Safety Systems Division, BARC, Mumbai, India.
³ Department of Physics, Savitiribai Phule Pune University, Pune, India.
⁴ Health Physics Division, BARC, Mumbai, India.

PMID: 35421808
DOI: 10.1016/j.apradiso.2022.110228

Abstract

¹⁵²Eu has been standardized by three independent 4π β-γ coincidence counting systems with beta detectors as proportional counter, plastic scintillator and liquid scintillator along with the CIEMAT/NIST method. The average activity concentration by primary methods was linked to key comparison reference value (KCRV) by comparing it with that of 4π γ ionization chamber (GIC) whose calibration factor was determined from the KCRV (BIPM.RI(II)-K1.Eu-152 and CCRI(II)-K2.Eu-152) and deviates from GIC by ± 0.16% indicating good agreement within standard uncertainties.

Keywords: 152Eu; 4π β-γ coincidence technique; CCRI(II)–K2.Eu-152; CIEMAT/NIST method; Ionization chamber; Plastic scintillator; Standardization.

MeSH terms

Radioisotopes*
Reference Standards
Uncertainty

Substances

Radioisotopes