Separation of scintillation and Cherenkov lights in linear alkyl benzene

• DOI: 10.1016/j.nima.2016.05.132
• Publication Date: 2016-06-03T00:22:31Z
• Authors: Mohan Li; Ziyi Guo; Minfang Yeh; Zhe Wang; Shaomin Chen
• Keywords: Cherenkov detector; Liquid Scintillation Counting

To separate scintillation and Cherenkov lights in water-based liquid scintillator detectors is a desired feature for future neutrino and proton decay researches. Linear alkyl benzene (LAB) is one important ingredient of a water-based liquid scintillator being developed. In this paper we observed a good separation of scintillation and Cherenkov lights in an LAB sample. The rising and decay times of the scintillation light of the LAB were measured to be $(7.7\pm3.0)\ \rm{ns}$ and $(36.6\pm2.4)\ \rm{ns}$, respectively, while the full width [-3$��$, 3$��$] of the Cherenkov light was 12 ns dominated by the time resolution of our photomultiplier tubes. The light yield of the scintillation was measured to be $(1.01\pm0.12)\times10^3\ \rm{photons}/\rm{MeV}$.<br/>6 pages, 9 figures, 2 tables<br/>