Cryogenic detectors – a promising option for GNO?

An improvement of the statistical and systematic uncertainty beyond the level achieved in GALLEX is an essential prerequisite for GNO. As major contributions to these errors are associated with the detection of the EC-decay of Ge-71 in miniaturized gas counters, low-temperature calorimetric detectors (LTCs) might provide a promising alternative for a later phase of GNO. We report the status of our R&D project on optimization of LTCs for this application. (C) 2000 Elsevier Science B.V. All rights reserved.