Observations of intense scintillations in unirradiated glycine

Abstract
We report new observations of scintillations and current pulses from glycine, a nonferroelectric crystal, which result from heating or cooling the sample between 77 and 300 K with no previous irradiation. The scintillations and current pulses occur approximately in coincidence and are probably due to a potential difference that exists across the sample as a result of a temperature gradient. Our results are similar to all previous observations of scintillations in ferroelectric crystals.