Cooled photodetector
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United States of America Patent
Stats
-
Aug 7, 2007
Grant Date -
Oct 6, 2005
app pub date -
Dec 23, 2002
filing date -
Dec 26, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Cooled photosensitive cell (80) comprising a table (50), sensors (66) which are fitted on the table, a screen (80) to prevent parasitic radiation on the sensors, and at least one Joule-Thomson cooler (41, 42) to cool the table and the screen.The table (50) and the screen (80) are cooled by convection, the table (50) being provided with apertures (55) for passage of the cooling flow, which communicate with an annular cavity (63) for cooling of the screen (80).
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