Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Ronald V. Peterson"'
Autor:
Ronald V. Peterson, James C. White
Publikováno v:
Journal of the IEST. 33:66-73
The accurate determination of dust levels on optical surfaces is necessary to assess sensor system performance. A comparison study was made on several particle measurement methods including those based on direct imaging and light scattering. The effe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::220bce09e40228cb3d0079af20dd9246
https://doi.org/10.17764/jiet.2.33.2.5136027g4491223r
https://doi.org/10.17764/jiet.2.33.2.5136027g4491223r
Publikováno v:
Optical Systems Degradation, Contamination, and Stray Light: Effects, Measurements, and Control II.
In contamination control technology relatively dirty surfaces cannot be specified with the same defining equations as those for "clean" surfaces. The current practices in the aerospace community disregard this inaccuracy in defining and specifying gr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9136d56d5f66611c13bb977a277f2bcd
https://doi.org/10.1117/12.695250
https://doi.org/10.1117/12.695250
Publikováno v:
SPIE Proceedings.
The use of MIL-STD-1246 particle distributions for calculating BRDF scatter has given unrealistic cleanliness requirements for optical systems exposed to environmental fallout. MIL-STD-1246 and fallout data were reviewed and used to generate more rea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::24ce203f6a41cf3c6301624ee91ec003
https://doi.org/10.1117/12.481665
https://doi.org/10.1117/12.481665
Autor:
Ronald V. Peterson, Edward L. Schultz
Publikováno v:
SPIE Proceedings.
The moderate resolution scanning spectroradiometer (MODIS) is a multiband scanning instrument containing low scatter optics whose performance depends on low particulate and molecular contamination levels. The derivation of the MODIS instrument cleanl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4688711e7b1d5d58a43d4c68aaa8e31
https://doi.org/10.1117/12.258306
https://doi.org/10.1117/12.258306
Publikováno v:
SPIE Proceedings.
Space optical systems operating at cryogenic temperatures may have stringent contamination levels due to high off-axis rejection requirements for the optics. The extreme difficulty in launching and maintaining clean cryogenic optics on-orbit is allev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8595ff104f7cf0823c93f8f29af3e726
https://doi.org/10.1117/12.140741
https://doi.org/10.1117/12.140741
Publikováno v:
SPIE Proceedings.
The location of particulates in and about a telescope assembly after jet spray cleaning of a contaminated primary mirrorsurface under vacuum conditions is determined. The Pathfinder experiment described here is designed to track both thelocation and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::caad21a751add0d9258eb7540baf6799
https://doi.org/10.1117/12.140742
https://doi.org/10.1117/12.140742
Autor:
Ronald V. Peterson, Charles W. Bowers
Publikováno v:
SPIE Proceedings.
Studies on the effectiveness of the jet flush in removing particle fallout and Arizona-standard fine dust on polished optical substrates have been carried out at ambient pressure and vacuum. These studies have shown that the CO2 jet flush is a viable
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5fa368e13fc24b55cdf340b028a03c93
https://doi.org/10.1117/12.22599
https://doi.org/10.1117/12.22599
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