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.
@article{arxiv.1004.0811,
title = {Optical Scattering Lengths in Large Liquid-Scintillator Neutrino Detectors},
author = {Michael Wurm and Franz von Feilitzsch and Marianne Goeger-Neff and Martin Hofmann and Tobias Lachenmaier and Timo Lewke and Teresa Marrodan Undagoitita and Quirin Meindl and Randoplh Moellenberg and Lothar Oberauer and Walter Potzel and Marc Tippmann and Sebastian Todor and Christoph Traunsteiner and Juergen Winter},
journal= {arXiv preprint arXiv:1004.0811},
year = {2014}
}
Comments
9 pages, 3 figures, accepted for publication by Rev. Scient. Instr.