Structure for influencing the effect of x-ray or gamma...

Details Structure for influencing the effect of x-ray or gamma... Structure for influencing the effect of x-ray or gamma...

G - Physics

21

K

358/27

G21K 3/00 (2006.01)

Patent

CA 2004902

A B S T R A C T The present invention refers to a structure for influ- encing the effect of X-ray or gamma radiation on a target sen- sitive 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 lay- ers (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.

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