PROTECTIVE SCREEN AGAINST IMPACT OF ELECTROMAGNETIC RADIATIONS Russian patent published in 2012 - IPC G12B17/02 H05K9/00 B82B1/00 

FIELD: information technologies.

SUBSTANCE: in a protective screen a body is made in the form of vertical and horizontal surfaces joined to each other, between which there is a screening element made in the form of a honeycomb straightener. At the same time according to the invention the shape of honeycomb straightener cells represents a regular hexagon or a hexagon with unequal ribs in a cross section perpendicular to a cell axis: four pairwise parallel ribs and two joined parallel ribs of smaller size, besides, faces of honeycomb straightener's polyhedrons, comprising two parallel ribs of smaller size, are arranged in parallel to a vertical surface, and faces comprising four pairwise parallel ribs are arranged at the angle to vertical and horizontal surfaces. Besides, the screening element of protective screens is treated with a composite material consisting of a polymer base, in which particles of - (Fe, Si) or - Co compounds are distributed with a nanocrystalline structure having volume density of (0.6÷1.4)·10^-5 1/nm³. At the same time the polymer base for fixation of powder particles position with a nanocrystalline structure is made in the form of structure elements alternating between each other and arranged at the angle of 90° to each other, and each of elements is made in the form of lengthy particles arranged in parallel rows. Particles arranged at the left and right from it are shifted by the value that does not exceed half of the maximum size of the particle, at the same time the optimal is the following range of nanocrystal volume density values in an amorphous matrix: more than 0.6·10^-5 1/nm³, but less than 1.4·10^-5 1/nm³.

EFFECT: increased efficiency of protection.

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