Efficiency of different methods for removing U, Th, and K from a liquid scintillator


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Abstract

The efficiency of removing U and Th from a liquid organic scintillator based on linear alkylbenzene (LAB) by stripping with a 0.02 M aqueous solution of aminomethylenediphosphonic acid and by sorption on aluminum oxide and silica gel was studied. A procedure was developed for purification of scintillation additives (2,5-diphenyloxazole, 2-biphenyl-5-phenyloxazole, p-terphenyl) to remove 40K.

About the authors

I. R. Barabanov

Institute for Nuclear Research

Email: morgaliuk@mail.ru
Russian Federation, pr. 60-letiya Oktyabrya 60, Moscow, 117312

V. P. Morgalyuk

Institute for Nuclear Research; Nesmeyanov Institute of Organoelement Compounds

Author for correspondence.
Email: morgaliuk@mail.ru
Russian Federation, pr. 60-letiya Oktyabrya 60, Moscow, 117312; ul. Vavilova 28, Moscow, 119334

G. Ya. Novikova

Institute for Nuclear Research

Email: morgaliuk@mail.ru
Russian Federation, pr. 60-letiya Oktyabrya 60, Moscow, 117312

E. A. Yanovich

Institute for Nuclear Research

Email: morgaliuk@mail.ru
Russian Federation, pr. 60-letiya Oktyabrya 60, Moscow, 117312


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