Abstract: The invention relates to a support and positioning system for at least one miniaturized element in the form of a cylinder. The system comprises a tube comprising an upper part, a median part and a lower part, the upper part being provided with an orifice into which the element is inserted and enabling displacement of the element as far as the median part that has a diameter slightly greater than the diameter of the cylinder forming the element, the lower part being connected to means for controlled injection of a gas to inject a gas inside the tube so as to levitate the element to the required height in the median part of the tube, the lower part of the tube being provided with an element removal orifice, the tube also comprising means of dissipating static electricity inside the tube. Application for characterization of miniaturized radioactive sources.

Abstract: An apparatus for depositing a material by evaporation on a substrate having a large surface. The apparatus includes an enclosure in which are placed a number of material evaporation sources. It also includes a device for channeling or piping of vapors emitted by the sources toward the substrate during evaporation. This is formed by walls or covers which define compartments within the enclosure, each evaporation source being placed in a compartment. The apparatus can also utilize a device for moving the substrate in order to improve the uniformity of the deposit.

Abstract: The composite according to the invention comprises a stack of alternately ferromagnetic and insulating, thin layers (12, 14) receiving on their edge the electromagnetic field to be transformed.