Abstract: Evaporators used in radiochemical production designed to evaporate highly active solutions and devices designed to create thin film in the heating chambers. The film former contains a liner in the upper part of the heat exchange tube attached to the spindle of the bellows assembly of the evaporator lid. The liner is provided with a radiation-proof tip that is not wettable by liquid being evaporated. The tip is made of two conjugate cones: the upper back cone and lower right cone, with the lower cone having a cylindrical belt with protrusions on it designed to center the conical tip on the inner surface of the heat exchange tube. A cap is mounted movably on the liner, with grooves on the lower end of the cap along the entire perimeter. The liner attached to the spindle is connected by fins with adjacent liners installed in heat exchange tubes.

Abstract: Evaporators used in radiochemical production designed to evaporate highly active solutions and devices designed to create thin film in the heating chambers. The film former contains a liner in the upper part of the heat exchange tube attached to the spindle of the bellows assembly of the evaporator lid. The liner is provided with a radiation-proof tip that is not wettable by liquid being evaporated. The tip is made of two conjugate cones: the upper back cone and lower right cone, with the lower cone having a cylindrical belt with protrusions on it designed to center the conical tip on the inner surface of the heat exchange tube. A cap is mounted movably on the liner, with grooves on the lower end of the cap along the entire perimeter. The liner attached to the spindle is connected by fins with adjacent liners installed in heat exchange tubes.

Abstract: Power sources based on semiconductor converters using the beta-voltaic effect. The Beta-voltaic battery comprises housing and cover, semiconductor converters, insulating and radioisotope elements and conductive contacts configured to make one or several packs connected in parallel and (or) in series. The pack is assembled from converters, whose opposite-polar surfaces face each other, with conductive radioisotope elements placed between them. The packs are separated by insulating elements, along the perimeter of which grooves are evenly spaced. The opposite grooves have conductive contacts designed in such a way as to electrical connect to both the conductive contacts of the extreme semiconductor converters of each pack and the controller. Highly enriched Nickel-63 is used as a radioisotope element, which is deposited on n-layers of semiconductor converters.