FIELD: medicine.
SUBSTANCE: invention refers to X-ray inspection appliances. A lead screen (1) for an introduction electron accelerator (2) in an X-ray generator consisting of at least four shielding boxes (7, 8, 9, 10) two of which (7, 8) are represented in the form of a semicylinder and have recesses (11, 12) in their side surfaces with side surfaces of the semicylindrical shielding boxes (7, 8) located in the matched recesses of the other shielding boxes (9, 10) so the recesses (11, 12) in the side surfaces form air channels between the semicylindrical shielding boxes (7, 8) and other shielding boxes (9, 10).
EFFECT: improved heat transfer from the introduction electron accelerator.
6 cl, 3 dwg
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