Ravindra, A.Kulkarni, D. B.Sathian, V.Chaudhury, P.2021-11-022021-11-022021Applied Radiation and Isotopes, 2021. Vol. 174: Article no. 109744http://hdl.handle.net/123456789/235744744 bytestext/htmlen133Ba solutionPrimary standardisatione,X-gamma coincidenceEfficiency extrapolation techniqueStandardisation of 133Ba by efficiency extrapolation method and calibration of ionisation chamberArticle