Patent ID: 9299469
Filing Date: 2016-03-29
CPC Classification: G21K,H01J

Claim Text:
1. A radiation window comprising a film permeable to radiation disposed on a support structure, said support structure comprising: (a) a primary transmissive area comprising a plurality of support members defining a plurality of apertures for radiation to pass through; (b) a flange disposed around the periphery of said primary transmissive area, said flange having generally greater mechanical rigidity than said primary transmissive area; (c) a transition region disposed between, and contiguous with, said primary transmissive area and said flange; and (d) said transition region having generally greater mechanical rigidity than said primary transmissive area and generally lesser mechanical rigidity than said flange, thereby providing an intermediate rigidity transition between the dissimilar rigidities of said primary transmissive area and said flange.