Optical Scattering Lengths in Large Liquid-Scintillator Neutrino Detectors

Abstract

For liquid-scintillator neutrino detectors of kiloton scale, the transparency of the organic solvent is of central importance. The present paper reports on laboratory measurements of the optical scattering lengths of the organic solvents PXE, LAB, and Dodecane which are under discussion for next-generation experiments like SNO+, Hanohano, or LENA. Results comprise the wavelength range from 415 to 440nm. The contributions from Rayleigh and Mie scattering as well as from absorption/re-emission processes are discussed. Based on the present results, LAB seems to be the preferred solvent for a large-volume detector.

9 pages, 3 figures, accepted for publication by Rev. Scient. Instr.

References in corpus (4)

• The Borexino detector at the Laboratori Nazionali del Gran Sasso
• First real time detection of Be7 solar neutrinos by Borexino
• Fluorescence decay-time constants in organic liquid scintillators
• Hanohano: A Deep Ocean Anti-Neutrino Detector for Unique Neutrino Physics and Geophysics Studies

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