Lead bricks

It is applied at a construction of walls to absorption x-ray and gamma radiations. Lead layers which gather from such bricks can be used both for biological shielding of personnel, and for protection of detectors of nuclear radiations against a gamma and x-ray background (for example, at measurement of samples with low activity). Developments of hadron and electromagnetic heavy rains are used also in detectors in a high-energy physics for absorption of offsprings.

By the sizes and a form often matches a normal building brick, however also the lead bricks of a special form ("larkspur") preventing emergence of direct through slots in protection are applied. Often has cuts for the admission of wires, pipes, etc.