Infra-red radiation detectors

Details Infra-red radiation detectors Infra-red radiation detectors

1983-01-21

1984-10-02

Capossela, Ronald C.

Refrigeration

Refrigeration producer

Evaporator, e.g., heat exchanger

62 555, 250352, F25B 1900

Patent

active

044740360

ABSTRACT:
An infra-red radiation detector comprises an envelope in the form of a dewar (1,2) in which a vacuum space (12) is present between an outer wall (2) and inner wall (1) cooled by a cooling element (20). Gas molecules are gettered from the vacuum space (12) by at least one shaped molecular-sorbent porous body (10,10') having a major surface which fits onto and is bonded to a cooled surface (e.g. of a radiation shield 8) associated with the cooled inner wall (1). The shaped getter body (10,10') 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 (20) during operation of the detector. The shaped getter body (10,10') is preferably a moulded annulus of synthetic zeolite material.

REFERENCES:
patent: 3144200 (1964-08-01), Taylor et al.
patent: 3769806 (1973-11-01), Boissin et al.
patent: 3786269 (1974-01-01), Cooper
patent: 4190106 (1980-02-01), Dunmire et al.
patent: 4344302 (1982-08-01), Jarrett, Jr. et al.
patent: 4408469 (1983-10-01), Forth

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