Author:
Liang Ye,Xu Tong,Zhang Jialiang,Li Shuo,Qi Ming,Wang Zhe
Abstract
Abstract
The lithium chloride aqueous solution has great potential to
be the detection medium of a novel solar neutrino detector. The
nuclide 7Li provides a charged-current interaction channel with a
high cross-section for the MeV-scale solar electron-neutrinos,
enabling measurement of the solar neutrino spectrum. This work
measures the optical properties and the light yields of a saturated
lithium chloride solution. After adsorption with activated carbon
and recrystallization, the solution shows little absorption in the
sensitive wavelength range of the bialkali photomultipliers. The
attenuation length is evaluated to reach 50 meters at 430 nm. In
addition to being a pure Cherenkov detector medium, a wavelength
shifter, carbostyril 124, is added to the LiCl aqueous solution. The
compatibility and the enhancement of the light yield are confirmed,
enabling the development of a water-based Cherenkov-enhanced
lithium-rich detector.
Subject
Mathematical Physics,Instrumentation
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