Experimental scintillator purification tests with silica gel chromatography

Liquid scintillators used in low counting rate experiments—like the neutrino experiments Borexino [Astroparticle Physics 16 (2002) 205] and Kamland [Nucl. Phys. Proc. Suppl. 145 (2005) 11]—usually have to fulfil high requirements concerning their radiopurity. In this context, silica gel chromatograp...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2006-12, Vol.568 (2), p.915-922
Main Authors: Niedermeier, Ludwig, Grieb, Christian, Oberauer, Lothar, Korschinek, Gunther, von Feilitzsch, Franz
Format: Article
Language:English
Subjects:
Column chromatography
Liquid scintillator purification
Silica gel
Solar neutrinos
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Summary:Liquid scintillators used in low counting rate experiments—like the neutrino experiments Borexino [Astroparticle Physics 16 (2002) 205] and Kamland [Nucl. Phys. Proc. Suppl. 145 (2005) 11]—usually have to fulfil high requirements concerning their radiopurity. In this context, silica gel chromatography is a promising purification method to extract traces of polar impurities from liquid scintillators. This publication presents a purification model along with the results of new laboratory experiments, which among others examine a purification mode predicted to be particularly efficient. Possible limitations in the purification capability of silica gel are investigated.
ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2006.08.006