Importance

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Abstract

Disclosed is an anti-radiation viewing port intended to be fitted to a wall opening provided in a wall which separates a space subjected to ionising radiation, the space being called a hot space, and a space which is not subjected to ionising radiation, the space being called a cold space. This anti-radiation viewing port includes a screen which is made from transparent radio-protective material and which is associated with a peripheral attachment frame. A joint structure is positioned between a rebate periphery wing of the peripheral attachment frame, and a peripheral screen edge; and the front screen face of the screen made of transparent radio-protective material, the front joint face of the joint structure and at least a portion of the outer face of an attachment wing which extends in continuation of the front joint face are located in the same plane or substantially in the same plane.

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First Claim