Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Jeff Kegley"'
Autor:
Jim Tucker, Ritva A. M. Keski-Kuha, Bente Eegholm, Patty May, Larry Gilman, Stan Backovsky, Dave Moon, Jeff Kegley, Marcel Bluth, Ted Messer, Jim York, Kevin Patton, Charles Atkinson, Jonathan W. Arenberg, Babak Saif
Publikováno v:
SPIE Proceedings.
The need for JWST's metering structure to be stable over time while at cryogenic temperatures is derived from its scientific objectives. The operational scenario planned for JWST provides for the optical system to be adjusted on regular intervals bas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::625b50bef4c0755208ed5fb8e5977d04
https://doi.org/10.1117/12.734753
https://doi.org/10.1117/12.734753
Autor:
Richard Siler, Ernie Wright, William Hogue, Jay Carpenter, Harlan Haight, Ron Eng, Kevin L. Russell, Mark Baker, Jeff Kegley, Jeff McCracken
Publikováno v:
Space Telescopes and Instrumentation I: Optical, Infrared, and Millimeter.
Marshall Space Flight Center's X-ray Cryogenic Facility (XRCF) has been performing optical wavefront testing and thermal structural deformation testing at sub-liquid nitrogen cryogenic temperatures since 1999. Recent modifications have been made to t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c66279ddf1adb4e8ea4c7e77a77e8cc
https://doi.org/10.1117/12.672096
https://doi.org/10.1117/12.672096
Autor:
Jim York, Jonathan W. Arenberg, Babak Saif, Barbara Zukowski, Charles Atkinson, Patty May, Ritva A. M. Keski-Kuha, Kevin L. Russell, Peter Blake, Bente Eegholm, Dave Moon, Joseph Yacoub, Ted Messer, Nick Abbruzze, Jim Tucker, Jas Jahic, Marcel Bluth, Stan Backovsky, Kevin Patton, Kristen Anderson, Jeff Kegley, Larry Gilman, Hector Padilla, Christopher Harvey, Justin Reuter
Publikováno v:
Space Telescopes and Instrumentation I: Optical, Infrared, and Millimeter.
The unprecedented stability requirements of JWST structures can only be conclusively verified by a combination of analysis and ground test. Given the order of magnitude of the expected motions of the backplane due to thermal distortion and the high l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::21c92a80403b63128ebaccb67af8e9ea
https://doi.org/10.1117/12.671714
https://doi.org/10.1117/12.671714
Autor:
H. Philip Stahl, James B. Hadaway, Robert Engberg, Jeff Kegley, Kevin L. Russell, Ron Eng, J. Cary Reily, William Hogue, Ernest R. Wright
Publikováno v:
SPIE Proceedings.
Marshall Space Flight Center (MSFC) has been performing optical wavefront testing at cryogenic temperatures since 1999 in the Space Optics Manufacturing Technology Center's (SOMTC's) X-ray / Cryogenic Facility (XRCF). Recently the cryogenic optical t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::628ed38f63aba0eed2bc1fc70396818b
https://doi.org/10.1117/12.461793
https://doi.org/10.1117/12.461793
Autor:
Richard Siler, John W. Keidel, Jack C. Reily, David Jacobson, Ernie Wright, Ron Eng, Jeff Kegley, Scott Smith, Phil Stahl
Publikováno v:
Optical Fabrication and Testing.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f424538e4174c20bd6a9fe12d35707cd
https://doi.org/10.1364/oft.2000.omd2
https://doi.org/10.1364/oft.2000.omd2
Publikováno v:
Optical Fabrication and Testing.
Optical test results of several lightweight mirrors using different instruments will be presented. Several optical figure-testing techniques were used to overcome the vibration problem associated with optical testing with long optical path length.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d0e69dbf282fa9455e8c5a57d7279cc4
https://doi.org/10.1364/oft.2000.omd4
https://doi.org/10.1364/oft.2000.omd4