Speaker
Mr
Tanner Kaptanoglu
(University of Pennsylvania)
Description
We introduce a new device, ‘the dichroicon’, that is capable of providing information on photon wavelength in a large-scale neutrino detector. In a Cherenkov detector, photon wavelength carries information about the propagation time from source vertex to photon sensor. Measuring the difference in time between many long-wavelength and short-wavelength photons that lie along a Cherenkov ring provides information about event position, independent from the overall timing and angular information usually used in reconstruction. In a scintillation or water-based scintillation detector, photon wavelength can be used to detect Cherenkov light independently from scintillation light. Future large-scale scintillation experiments like Theia plan to detect both Cherenkov and scintillation light as a way of providing a very broad range of physics with a single detector. In this talk I will present measurements with a prototype dichroicon using both Cherenkov and scintillation sources. We show that photon sorting with the dichroicon works as expected. In addition, we demonstrate discrimination between Cherenkov and scintillation light with better than 90% Cherenkov purity while maintaining a high collection efficiency for the scintillation light.
Primary author
Mr
Tanner Kaptanoglu
(University of Pennsylvania)
