Abstract: The compressor compresses a high pressure fluid such as gas or steam in a working chamber provided with a thermo-regenerator connected in parallel. Said fluid is alternatingly brought to a high temperature in the warm portion of the chamber by means of a heat supply and is taken down to a reduced temperature in the cold portion of the chamber by means of a refrigerator. The cold portion communicates with a fluid separator comprised of two chambers which are sealingly separated by means of a piston or an elastic membrane. The chamber of the fluid separator connected with the cold portion of the working chamber forms together with the latter a primary circuit of the compressor which uses as working fluid helium, hydrogen or an overheated steam of a condensable fluid. The second chamber is connected with two pressurized containers through two return valves with opposite passage and wherein the working fluid (liquid, gas-oil mixture) is stored at two different pressures.

Abstract: A planar detector of a device for detecting corpuscular or electromagnetic radiation, utilizing the magnetic superheating properties of small superconducting particles in a magnetic field has its receiving surface subdivided into small superconducting detector elements of equal size and placed on a transparent body of a magneto-optically active material. The elements are illuminated from the rear with monochromatic, linearly polarized light, and can be observed via a crossed polarization filter to provide a radiation receiver of relatively simple design and high resolution.