STRUCTURE FOR INFLUENCING THE EFFECT OF X-RAY OR GAMMA RADIATION ON A TARGET SENSITIVE TO THE RADIATION

摘要

The present invention refers to a structure for influencing the effect of X-ray or gamma radiation on a target sensitive to the radiation (R), having a first and a second side, the X-ray or gamma radiation (R) striking the first side, the structure comprising at least one group of layers (1, 3, 5, 7) emitting a secondary radiation under the influence of the X -ray or gamma radiation (R) or the secondary radiation of layers (1, 3, 5, 7) arranged behind the first side in the way of propagation of the X-ray or gamma radiation (R). The essence of the invention lies comprising in the group at least a basic layer (1) and a second (3) layer arranged in a sequence of the atomic numbers of elements forming the layers (1, 3, 5, 7), wherein the basic layer is made of a metal selected from the group consisted of 28Pb, 74W and 73Ta, the second layer of a metal selected from the group consisted of 47Ag, 42Mo, 41Nb, 29Cu, 28Ni, 23V and 13Al. FIG. 2.