Abstract:
Nowadays, many particle detectors use liquid scintillator (LS) as a detection medium. In
particular, Water-based Liquid Scintillator (WbLS) that is a new material currently under
development. It is based on the idea of dissolving the organic scintillator in water using special
surfactants. This material strives to achieve the novel detection techniques by combining the
Cherenkov and scintillation light, as well as the total cost reduction compared to pure liquid
scintillator.
An important part of either the pure LS or WbLS production is to choose the right fluor and
shifter and their concentrations. The choice affects the spectral distribution of the light output
and the detection efficiency as each photodetector has its own spectral sensitivity region. This
work presents the results of the study on the pseudocumen (PC) based LS with the PPO and
POPOP/MSB as a fluor and shifters of choice. Both the total light yield and the spectral
differences in the outputs with different amounts of components are shown. This study can be
applied to plastic scintillators as well.
38th