Abstract
Thin films of a semi-conducting form of antimony prepared by sputtering from a cathode of metallic antimony are suitable, with regard to resistivity, temperature coefficient of resistance and freedom from current noise, for the construction of bolometers of good sensitivity and of sufficiently high resistance for matching into a valve amplifier. A description is given of the construction and performance of such a bolometer, in which the antimony film is deposited on a thin plastic pellicle.