Speaker
Dr
Dmitry Chernyak
(University of South Dakota)
Description
The NaI/CsI(Tl) crystals are widely used in experiments to search for dark matter and coherent elastic neutrino-nucleus scattering thanks to their high scintillation light yields (~50 photons/keV) and relatively low costs. An even higher light yield of NaI/CsI crystals will lead to a lower energy threshold and better energy resolution. It was observed that the light yields of undoped NaI/CsI crystals increase rapidly when temperature goes down and reach the highest point around liquid nitrogen temperature. The light yield of an undoped ~1 kg CsI crystal was studied at 77 K.
Author
Dr
Dmitry Chernyak
(University of South Dakota)
