Thermal control in variable aperture mechanism for cryogenic environment
作者： Jeffrey P. Yanevich , James E. Scroggin , Julio C. Dominguez , Kenneth L. Mcallister , Michael L. Brest
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摘要: A shutter assembly (12) comprising a first planar member (70) and second (72) opposed from one another forming sleeve having cavity (80) therebetween, the pair of side rails (78) adjacent along sides sleeve. (14) end (92) is disposed in slidingly rails, other rail. The to configured be selectively advanced towards, retracted from, so as define an aperture (15) therebetween shape when position, wherein has larger position. maintain thermal contact with members all positions. well suited used at cryogenic temperature high vacuum environment.
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