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U.S. Department of Energy
Office of Scientific and Technical Information

Infrared radiation detectors

Patent ·
OSTI ID:5754481
An infrared radiation detector comprises an envelope in the form of a dewar in which a vacuum space is present between an outer wall and inner wall cooled by a cooling element. Gas molecules are gettered from the vacuum space by at least one shaped molecular-sorbent porous body having a major surface which fits onto and is bonded to a cooled surface (e.g. of a radiation shield) associated with the cooled inner wall. The shaped getter body is secured (e.g. by epoxy adhesive) at its major surface to this cooled surface in a heat-exchange relationship so as to be cooled by the cooling element during operation of the detector. The shaped getter body is preferably a moulded annulus of synthetic zeolite material.
Assignee:
US Philips Corporation
Patent Number(s):
US 4474036
OSTI ID:
5754481
Country of Publication:
United States
Language:
English