Modern Purification Methods for Liquid Scintillators Intended for Recording Rare Events
Journal Article
·
· Physics of Particles and Nuclei
— Chromato-mass-spectrometry and UV/VIS spectroscopy are used to study the composition and properties of linear alkyl benzene (LAB) produced in Russia as the basic solvent for production of low-background liquid scintillators. The efficiency of LAB purification by reducing intrinsic radioactivity (U, Th) via water extraction (with addition of a strong chelate, dimethylaminomethylendiphosphonic acid) and sorption on Al{sub 2}O{sub 3} in silica gel is studied. The purification method for removing potassium from scintillation fluors (PPO, BPO, p -terphenyl) is developed. It is shown that U and Th can be efficiently extracted from NdCl{sub 3} water solutions with 0.1 M TOPO solution in pseudocumene.
- OSTI ID:
- 22979562
- Journal Information:
- Physics of Particles and Nuclei, Journal Name: Physics of Particles and Nuclei Journal Issue: 4 Vol. 49; ISSN 1063-7796
- Country of Publication:
- United States
- Language:
- English
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