Measured performance and description of the Naval Research Laboratory solar coronagraph optical test chamber and instrument clean room

Clarence M. Korendyke

doi:10.1117/12.140858

22 January 1993 Measured performance and description of the Naval Research Laboratory Solar Coronagraph Optical Test Chamber and instrument clean room

Clarence M. Korendyke

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Proceedings Volume 1764, Ultraviolet Technology IV; (1993) https://doi.org/10.1117/12.140858
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

The Naval Research Laboratory recently completed construction of a new instrument handling facility for contamination sensitive optical space flight instruments. The solar instrument test facility includes a clean room for instrument assembly and a relatively large (1.65x104 liters) optical test and calibration vacuum chamber. The performance of each has been verified in preparation for the arrival of the Large Angle Spectrometric Coronagraph (LASCO) instrument. After vacuum conditioning, the chamber had an ultimate pressure of 8 x l0 exp -9 Torr. The chamber ambient vacuum was measured to have no partial pressure peaks greater than 10 exp -10 Torr above 55 atomic mass units as measured with a residual gas analyzer. The clean room was tested and found to be Class 10 in the instrument areas. This paper describes the A-13 clean room and vacuum tank facilities and their experimentally measured performance.

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Clarence M. Korendyke "Measured performance and description of the Naval Research Laboratory Solar Coronagraph Optical Test Chamber and instrument clean room", Proc. SPIE 1764, Ultraviolet Technology IV, (22 January 1993); https://doi.org/10.1117/12.140858

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KEYWORDS

Ultraviolet radiation

Optical testing

Aerospace engineering

Analytical research

Coronagraphy

Optical character recognition

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