Proposed High-Resolution Vertex Detector Using Superconductive Thin Strips

Abstract
The possibility of fabricating a superconductive vertex detector is discussed on the basis of a preliminary experiment. The experiment has shown that an indium strip 15 mm long, 20 µm wide and 0.1 µm thick is changed from the superconductive state to the normal state when struck by a single 5.4 MeV alpha particle.