Spectroscopic study of light scattering in linear alkylbenzene for liquid scintillator neutrino detectors

Zhou, Xiang; Liu, Qian; Han, Jiapeng; Zhang, Zhenyu; Zhang, Xuan; Ding, Yayun; Zheng, Y.; Li, Zhou; Cao, Junpeng; Wang, Yifang

doi:10.1140/epjc/s10052-015-3784-z

Cited by 8 publications

(8 citation statements)

References 42 publications

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“…The appearance of depolarized part in scattered light will shorten the Rayleigh scattering length of LAB as discussions in Ref. [19,20]. The angular distribution for Rayleigh scattering of anisotropic molecules obeys (1 + (1 − δ)/(1 + δ) cos 2 θ) [23].…”

Section: Rayleigh Scattering In Labmentioning

confidence: 93%

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Measurements of Rayleigh Ratios in Linear Alkylbenzene

Yu,

Wu,

Peng

et al. 2022

Preprint

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In present work an experiment has been designed to measure Rayleigh ratios 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 ± 0.28) × 10 −6 m −1 • sr −1 at 405 nm and (3.82 ± 0.24) × 10 −6 m −1 • sr −1 at 432 nm, and the corresponding Rayleigh scattering length is L Ray = 22.9 ± 0.3(stat.) ± 1.7(sys.) m at 405 nm and L Ray = 27.0 ± 0.9(stat.) ± 1.8(sys.) m at 432 nm.

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Section: Rayleigh Scattering In Labmentioning

confidence: 93%

“…The Rayleigh scattering length has also been obtained according to the Einstein-Smoluchowski-Cabannes (ESC) formula [17] by measuring the depolarization ratio of LAB in Ref. [18][19][20]. However, measurements of other LAB properties in the ESC formula, like isothermal compressibility, are time consuming and expensive.…”

Section: Introductionmentioning

confidence: 99%

Measurements of Rayleigh Ratios in Linear Alkylbenzene

Yu,

Wu,

Peng

et al. 2022

Preprint

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“…It should be noted that the measured attenuation lengths actually included the contribution from the absorption, re-emission, and scattering effects [38,39].…”

Section: Attenuation Length Of the Scintillatormentioning

confidence: 99%

Slow liquid scintillator candidates for MeV-scale neutrino experiments

Guo

Yeh

Zhang

et al. 2019

Astroparticle Physics

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Slow liquid scintillator Cherenkov detectors have been proposed as part of several future neutrino experiments because they can provide both directionality and energy measurements. This feature is expected to enhance the sensitivities for MeV-scale neutrino physics, including solar physics, the search for supernova relic neutrino, and the study of geo-sciences. In this study, the characteristics of a slow liquid scintillator were investigated, along with the light yields and decay time constants for various combinations of linear alkylbenzene (LAB), 2,5diphenyloxazole (PPO), and 1,4-bis (2-methylstyryl)-benzene (bis-MSB). The results of our study indicated that LAB with 0.07 g/L of PPO and 13 mg/L of bis-MSB was the best candidate for an effective separation between Cherenkov and scintillation lights with a reasonably high light yield.

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“…Depolarization of scattered photons is an important property of anisotropic molecules. The common recipes of liquid detectors mentioned above like water and linear alkylbenzene (LAB) are optically anisotropic fluids, and the depolarization ratios ρ v have already been measured [8][9][10][11]. The magnitude of Rayleigh scattering is supposed to be increased for anisotropic liquids due to the Cabannes correction [12] and related measurements have already been discussed for LAB in Ref.…”

Section: Introductionmentioning

confidence: 99%

A Monte Carlo Method for Rayleigh Scattering in Liquid Detectors

Yu¹,

Wu²,

Ding³

et al. 2022

Preprint

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A new Monte Carlo method has been implemented to describe the angular and polarization distributions of anisotropic liquids, like water and linear alkylbenzene, by considering orientational fluctuations of polarizability tensors. The scattered light of anisotropic liquids is depolarized with an angular distribution of 1 + (1 − ρ v )/(1 + 3ρ v ) cos 2 θ, which is modified by the depolarization ratio ρ v . A standalone experiment has validated the simulation results of LAB. The new method can provide more accurate knowledge on light propagation in large liquid detectors, which is beneficial to the developments of reconstruction for detectors.

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Spectroscopic study of light scattering in linear alkylbenzene for liquid scintillator neutrino detectors

Cited by 8 publications

References 42 publications

Measurements of Rayleigh Ratios in Linear Alkylbenzene

Measurements of Rayleigh Ratios in Linear Alkylbenzene

Slow liquid scintillator candidates for MeV-scale neutrino experiments

A Monte Carlo Method for Rayleigh Scattering in Liquid Detectors

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