Cherenkov and scintillation separation in water-based liquid scintillator using an LAPPDTM

This manuscript describes measurements of water-based liquid scintillators (WbLS), demonstrating separation the Cherenkov and scintillation components using fast timing response a Large Area Picosecond Photodector (LAPPD). Additionally, time profiles three WbLS mixtures, defined by relative fractions scintillating compound, are characterized, with improved sensitivity to scintillator rise-time. The were made both an LAPPD conventional photomultiplier tube (PMT). All samples measured effective resolution O(100 ps), which allows for light (henceforth C/S separation) selecting on arrival photons alone. purity selected is greater than 60% in all cases, 80% achieved sample containing 1% scintillator. first demonstration power synthesizing low yield scintillators, canonical example, photodetectors, LAPPDs emerging leader, has direct implication future mid- large-scale detectors, such as Theia, ANNIE, AIT/NEO.