Kavli Affiliate: Masaki Yamashita | First 5 Authors: Jing Liu, Masaki Yamashita, Arun Kumar Soma, , | Summary: A light yield of 20.4 $pm$ 0.8 photoelectrons/keV was achieved with an undoped CsI crystal coupled directly to a photomultiplier tube at 77 Kelvin. This is by far the largest yield in the world achieved with CsI […]