Measurements of Rayleigh Ratios in Linear Alkylbenzene

In present work an experiment has been designed to measure the Rayleigh ratio directly at \(405\) nm and \(432\) nm for linear alkylbenzene which is a common solvent used in liquid scintillator detectors of neutrino experiments. The perpendicularly polarized Rayleigh ratio is determined to be \((4.52\pm 0.28)\times 10^{-6}\) m\(^{-1}\cdot\) sr\(^{-1}\) at \(405\) nm and \((3.82\pm 0.24)\times 10^{-6}\) m\(^{-1}\cdot\) sr\(^{-1}\) at \(432\) nm, and the corresponding Rayleigh scattering length is \(L_{Ray} = 22.9\pm 0.3(\mathrm{stat.})\pm 1.7(\mathrm{sys.})\) m at \(405\) nm and \(L_{Ray}= 27.0\pm 0.9(\mathrm{stat.})\pm 1.8(\mathrm{sys.})\) m at \(432\) nm.