Rayleigh scattering of linear alkylbenzene in large liquid scintillator detectors

Abstract

Rayleigh scattering poses an intrinsic limit for the transparency of organic liquid scintillators. This work focuses on the Rayleigh scattering length of linear alkylbenzene (LAB), which will be used as the solvent of the liquid scintillator in the central detector of the Jiangmen Underground Neutrino Observatory. We investigate the anisotropy of the Rayleigh scattering in LAB, showing that the resulting Rayleigh scattering length will be significantly shorter than reported before. Given the same overall light attenuation, this will result in a more efficient transmission of photons through the scintillator, increasing the amount of light collected by the photosensors and thereby the energy resolution of the detector.

5 pages

References in corpus (8)

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• Experimental Requirements to Determine the Neutrino Mass Hierarchy Using Reactor Neutrinos
• Overview of the Jiangmen Underground Neutrino Observatory (JUNO)
• Densities, isobaric thermal expansion coefficients and isothermal compressibilities of linear alkylbenzene

Cited by in corpus (16)

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• MeV-scale performance of water-based and pure liquid scintillator detectors
• A complete optical model for liquid-scintillator detectors
• Reactor Neutrino Experiments: Present and Future
• Prediction of Energy Resolution in the JUNO Experiment
• A vertex reconstruction algorithm in the central detector of JUNO
• Improving the energy uniformity for large liquid scintillator detectors
• Reconstruction Algorithm for a Novel Cherenkov Scintillation Detector
• A new method of energy reconstruction for large spherical liquid scintillator detectors
• Particle Identification at MeV Energies in JUNO
• Refractive index in the JUNO liquid scintillator
• Measurements of Rayleigh Ratios in Linear Alkylbenzene
• Spectroscopic study of light scattering in linear alkylbenzene for liquid scintillator neutrino detectors
• Determine Energy Nonlinearity and Resolution of $e^{\pm }$ and $\gamma$ in Liquid Scintillator Detectors by A Universal Energy Response Model
• A Monte Carlo Method for Rayleigh Scattering in Liquid Detectors