First results from cryogenic avalanche detectors based on gas electron multipliers
arXiv:physics/0308010 · doi:10.1109/TNS.2003.820633
Abstract
We study the performance of gaseous and two-phase (liquid-gas) cryogenic detectors of ionizing radiation, based on gas electron multipliers (GEMs). For the first time, high gas gains, exceeding 10^4, were obtained in pure He, Ar and Kr at low temperatures and the stable avalanche mode of operation was observed in the two-phase cryogenic detector in Kr. The electron avalanching at low temperatures, in the range of 120-300 K, is systematically studied.
5 figures, 5 pages. Preprint Budker INP 2003-46. Submitted to IEEE Trans. Nucl. Sci