Abstract: A multilayer circuit board having a security cell having security-related electronic components disposed thereon. The security cell is covered by a circuit path arrangement having circuit path segments disposed close to one another, and by an insulation layer. Penetration and thus manipulation of the security-related components is thus largely prevented.

Abstract: A multilayer circuit board having a security cell having security-related electronic components disposed thereon. The security cell is covered by a circuit path arrangement having circuit path segments disposed close to one another, and by an insulation layer. Penetration and thus manipulation of the security-related components is thus largely prevented.

Abstract: A large surface cathode arrangement with a consumable cathode plate that is connected via an intermediate plate with high electrical and thermal conductivity to a base plate is provided. The arrangement is provided with cooling channels. Current supply conduits and current supply locations for uniformly distributing the electrical current density and the electrical potential within the cathode plate are furthermore provided which allow the consumption of the cathode plate to become more uniform. Preferably, three or more current supply conduits are connected to a plurality of current supply locations that are uniformly distributed over the base plate. The cooling channels are provided at the face of the intermediate plate which is facing the base plate so that a continuous wall of the intermediate plate is in contact with the cathode plate, thus contributing to the improvement of the current distribution. The cathode arrangement is especially suitable for coating apparatus according to the PVD principle.

Abstract: A device is described for taking samples from a liquid-metal-carrying pipe loop, in which the flowing liquid metal is a hot molten metal and may also be radioactive, e.g., metal in a main coolant loop of a sodium-cooled nuclear reactor. The device is suited for in-line as well as out-line operation and uses the conventional crucibles. The crucibles are arranged in a vertical housing in a circle around a vertical feed line for the liquid metal and extending upwardly into the housing. The liquid metal flowing into the device from the feed line's upper end, is deflected downwardly into the crucibles by a downwardly facing concave baffle surface which is concentric with the feed line. The crucibles can be taken out of the device, hanging on an insert forming a closure for the housing's top and that can be unscrewed and lifted, to obtain the crucibles.