| 摘要 |
A shield against radiation when working in a radiant zone comprises a screen (31') of a radiation-protective material. The screen (31') comprises at least two essentially vertically arranged sheets (13, 14, 15), which are relatively displaceable in the lateral direction along an essentially common plane, in such manner that they can form an opening of an adjustable width, through which opening work can be carried out in the radiant zone.
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