Mr. Jeffrey R. Kegley Profile

Jeffrey R. Kegley

Mechanical Test Engineer at NASA Marshall Space Flight Ctr

SPIE Involvement:

Author

Publications (20)

Proceedings Article | 23 August 2024 Poster + Paper

Repurposing the James Webb Space Telescope’s center of curvature optical bench hexapod for future mirror calibration testing at NASA Marshall’s x-ray and cryogenic facility

Bryan Walter, Mark Welle, Ryan Sneed, Mark Mimovich, Matt Granrud, Jeffrey Kegley

Proceedings Volume 13092, 130923R (2024) https://doi.org/10.1117/12.3018508

KEYWORDS: Vacuum chambers, James Webb Space Telescope, X-rays, Human-machine interfaces, X-ray telescopes, ITAR, Ear, Actuators, Vacuum, Design

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Proceedings Article | 6 October 2023 Presentation

X-ray testing of an Athena SPO module at the NASA/MSFC X-ray and Cryogenic Facility (XRCF)

Wayne Baumgartner, Kristin Madsen, Vadim Burwitz, Ernie Wright, Steven Johnson, Jeff Kegley, Nicholas Thomas, James Tucker, Gregory Daspit

Proceedings Volume 12679, 126790Z (2023) https://doi.org/10.1117/12.2681740

KEYWORDS: X-rays, Cryogenics, X-ray optics, Optical calibration, Calibration, X-ray telescopes, X-ray detectors, Windows, Point spread functions, Optical alignment

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Proceedings Article | 5 October 2023 Presentation + Paper

Capability improvements at the Marshall Space Flight Center's x-ray and cryogenic facility

Jeff Kegley, William Abbot, Wayne Baumgartner, Mark Baker, Gregory Daspit, William Hogue, Steve Johnson, Kristin Madsen, Mark Mimovich, James Tucker, Ernie Wright

Proceedings Volume 12679, 126790Y (2023) https://doi.org/10.1117/12.2678607

KEYWORDS: X-rays, Vacuum chambers, X-ray sources, X-ray optics, Tunable filters, Optical testing, James Webb Space Telescope, Equipment, Cryogenics, X-ray telescopes

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Proceedings Article | 31 August 2022 Poster + Paper

Simulations of the ATHENA performance verification testing at XRCF

Kristin Madsen, Wayne Baumgartner, Jeffrey Kegley, Ernest Wright, Elias Breunig, Vadim Burwitz, Ivo Ferreira, Andrew Ptak

Proceedings Volume 12181, 121814E (2022) https://doi.org/10.1117/12.2630616

KEYWORDS: Mirrors, Vignetting, Point spread functions, X-rays, X-ray optics, Ray tracing, Calibration, Optical alignment

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Proceedings Article | 26 August 2022 Presentation

Athena x-ray optics testing at the MSFC XRCF: overview

Wayne Baumgartner, Kristin Madsen, Jeff Kegley, Ernest Wright, Jim Tucker, Gregory Daspit, Vadim Burwitz, Elias Breunig, Nicholas Thomas, Steven Johnson

Proceedings Volume 12181, 121810X (2022) https://doi.org/10.1117/12.2630727

KEYWORDS: X-ray optics, X-rays, Optical testing, Mirrors, X-ray detectors, Calibration, Sensors, Optical fabrication, X-ray sources, Point spread functions

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Proceedings Article | 13 December 2020 Poster

Calibration of the MaGIXS solar sounding rocket experiment

P. S. Athiray, Patrick Champey, Amy Winebarger, Ken Kobayashi, Sabrina Savage, Genevieve Vigil, Peter Cheimets, Edward Hertz, Anthony Guillory, Harlan Haight, William Hogue, Ernest Wright, Jeffrey Kegley, Steven Johnson, Richard Siler

Proceedings Volume 11444, 114445R (2020) https://doi.org/10.1117/12.2562874

KEYWORDS: Calibration, X-rays, Rockets, Spectroscopy, X-ray imaging, Grazing incidence, Imaging spectroscopy, Plasma, Temperature metrology, Optical instrument design

Proceedings Article | 24 July 2014 Paper

Lessons we learned designing and building the Chandra telescope

Jonathan Arenberg, Gary Matthews, C. Atkinson, L. Cohen, C. Golisano, K. Havey, K. Hefner, C. Jones, J. Kegley, P. Knollenberg, T. Lavoie, J. Oliver, P. Plucinsky, H. Tananbaum, S. Texter, M. Weisskopf

Proceedings Volume 9144, 91440Q (2014) https://doi.org/10.1117/12.2055515

KEYWORDS: Mirrors, Telescopes, Calibration, Space telescopes, X-rays, Observatories, Interfaces, Optical instrument design, Sensors, Optical alignment

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Proceedings Article | 30 September 2013 Paper

Cryogenic optical performance of a lightweighted mirror assembly for future space astronomical telescopes: correlating optical test results and thermal optical model

Ron Eng, William Arnold, Markus Baker, Ryan Bevan, Gregory Burdick, Michael Effinger, Darrell Gaddy, Brian Goode, Craig Hanson, William Hogue, Jeffrey Kegley, Charlie Kirk, Steven Maffett, Gary Matthews, Richard Siler, W. Scott Smith, H. Philip Stahl, John Tucker, Ernest Wright

Proceedings Volume 8837, 88370B (2013) https://doi.org/10.1117/12.2025393

KEYWORDS: Mirrors, Thermography, Optical fabrication, Space telescopes, Optical testing, Thermal modeling, Cryogenics, Abrasives, Helium, Optics manufacturing

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Proceedings Article | 12 September 2007 Paper

Technology demonstration of large stable cryogenic composite structures for JWST

Charles Atkinson, Jonathan Arenberg, Larry Gilman, Ted Messer, Patty May, Dave Moon, Kevin Patton, Jim York, Stan Backovsky, Jim Tucker, Marcel Bluth, Babak Saif, Ritva Keski-Kuha, Jeff Kegley, Bente Eegholm

Proceedings Volume 6687, 668703 (2007) https://doi.org/10.1117/12.734753

KEYWORDS: Curium, James Webb Space Telescope, Cryogenics, Composites, Temperature metrology, Space telescopes, Mirrors, Manufacturing, Metrology, Analytical research

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Proceedings Article | 16 June 2006 Paper

Improved cryogenic testing capability at Marshall Space Flight Center's X-ray Cryogenic Facility

Jeff Kegley, Mark Baker, Jay Carpenter, Ron Eng, Harlan Haight, William Hogue, Jeff McCracken, Kevin Russell, Richard Siler, Ernie Wright

Proceedings Volume 6265, 62654E (2006) https://doi.org/10.1117/12.672096

KEYWORDS: Cryogenics, X-rays, Mirrors, James Webb Space Telescope, Helium, Optical testing, Optical fabrication, Space telescopes, Calibration, X-ray optics

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Proceedings Article | 13 June 2006 Paper

The JWST backplane stability test article: a critical technology demonstration

Jonathan Arenberg, Larry Gilman, Nick Abbruzze, Justin Reuter, Kristen Anderson, Jas Jahic, Joseph Yacoub, Hector Padilla, Charles Atkinson, Dave Moon, Kevin Patton, Patty May, Jim York, Ted Messer, Stan Backovsky, Jim Tucker, Chris Harvey, Bente Eegholm, Barbara Zukowski, Peter Blake

Proceedings Volume 6265, 62650Q (2006) https://doi.org/10.1117/12.671714

KEYWORDS: Distortion, James Webb Space Telescope, Manufacturing, Magnetism, Temperature metrology, Composites, 3D modeling, Aluminum, Space telescopes, Metrology

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Proceedings Article | 30 August 2005 Paper

Cryogenic performance of a lightweight silicon carbide mirror

Ron Eng, James Carpenter, Colby Foss, James Hadaway, Harlan Haight, William Hogue, David Kane, Jeffrey Kegley, H. Philip Stahl, Ernest Wright

Proceedings Volume 5868, 58680Q (2005) https://doi.org/10.1117/12.624292

KEYWORDS: Mirrors, Silicon carbide, Cryogenics, Optical testing, Diodes, Space telescopes, Lightweight mirrors, Space mirrors, Beryllium, Temperature metrology

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Proceedings Article | 1 June 2005 Paper

Actively cooled SLMS technology for HEL applications

Marc Jacoby, William Goodman, Jack Reily, Jeffrey Kegley, Harlan Haight, John Tucker, Ernest Wright, William Hogue

Proceedings Volume 5792, (2005) https://doi.org/10.1117/12.603632

KEYWORDS: Spatial light modulators, Mirrors, Silicon, Diodes, Foam, Liquids, Nitrogen, Silicon carbide, Cryogenics, Temperature metrology

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Proceedings Article | 12 October 2004 Paper

Cryogenic performance of lightweight SiC and C/SiC mirrors

James Hadaway, Ron Eng, H. Philip Stahl, James Carpenter, Jeffrey Kegley, William Hogue

Proceedings Volume 5487, (2004) https://doi.org/10.1117/12.552409

KEYWORDS: Mirrors, Silicon carbide, Cryogenics, Monochromatic aberrations, Temperature metrology, Polishing, Manufacturing, Silicon, Optical testing, Carbon

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Proceedings Article | 22 December 2003 Paper

Helium cryo testing of an SLMS (silicon lightweight mirrors) athermal optical assembly

Marc Jacoby, William Goodman, H. Philip Stahl, Andrew Keys, Jack Reily, Ron Eng, James Hadaway, William Hogue, Jeffrey Kegley, Richard Siler, Harlan Haight, John Tucker, Ernest Wright, James Carpenter, Jeff McCracken

Proceedings Volume 5180, (2003) https://doi.org/10.1117/12.508378

KEYWORDS: Spatial light modulators, Silicon, Cryogenics, Mirrors, Foam, Lightweight mirrors, Manufacturing, Helium, Optical fabrication, Prototyping

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Proceedings Article | 5 March 2003 Paper

New cryogenic optical test capability at Marshall Space Flight Center's Space Optics Manufacturing Technology Center

Jeff Kegley, Ron Eng, Robert Engberg, James Hadaway, William Hogue, J. Cary Reily, Kevin Russell, H. Philip Stahl, Ernest Wright

Proceedings Volume 4850, (2003) https://doi.org/10.1117/12.461793

KEYWORDS: Helium, Cryogenics, Optical testing, Optics manufacturing, Mirrors, Aerospace engineering, Astronomical imaging, X-ray optics, Wavefronts, Diodes

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Proceedings Article | 27 December 2001 Paper

Cryogenic optical testing results for the Subscale Beryllium Mirror Demonstrator (SBMD)

James Hadaway, Joseph Geary, Patrick Reardon, Bruce Peters, H. Philip Stahl, Ron Eng, John Keidel, Jeffrey Kegley, Timothy Reed, Donald Byrd

Proceedings Volume 4451, (2001) https://doi.org/10.1117/12.453625

KEYWORDS: Mirrors, Cryogenics, Photovoltaics, Optical testing, Monochromatic aberrations, Beryllium, Temperature metrology, Error analysis, Space telescopes, Wavefront sensors

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Proceedings Article | 27 December 2001 Paper

AMSD test error budget sensitivity analysis

Patrick Reardon, James Hadaway, Joseph Geary, Bruce Peters, H. Philip Stahl, Ron Eng, John Keidel, Jeffrey Kegley

Proceedings Volume 4451, (2001) https://doi.org/10.1117/12.453642

KEYWORDS: Mirrors, Interferometers, Monochromatic aberrations, Error analysis, Optics manufacturing, Geometrical optics, Sensors, Optical testing, Cryogenics, Optical alignment

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Proceedings Article | 16 November 2000 Paper

Newly modified cryogenic optical test facility at Marshall Space Flight Center

Ron Eng, Jeffrey Kegley, John Keidel

Proceedings Volume 4131, (2000) https://doi.org/10.1117/12.406547

KEYWORDS: Mirrors, Cryogenics, X-rays, Optical testing, Interferometers, Sensors, Helium, Wavefront sensors, X-ray detectors, Calibration

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Proceedings Article | 18 July 2000 Paper

GoldHelox solar x-ray telescope testing progress report

Jonathan Barnes, Peter Roming, J. Moody, R. Steven Turley, Paul Eastman, T. Lloyd, K. Eldredge, Allen Raines, J. Cary Reily, Jeffrey Kegley, John Keidel, Jeff McCracken, Kenneth Whitley, Ernest Wright, Markus Baker, James Carpenter, D. Chavers, Harlan Haight, K. Barry Hale, Thomas Hill, David Javins, Joseph Norwood, Richard Siler, John Tucker, David Watson, R. Takahashi

Proceedings Volume 4012, (2000) https://doi.org/10.1117/12.391583

KEYWORDS: Space telescopes, Telescopes, Microchannel plates, Sun, X-ray telescopes, X-rays, Mirrors, Optical instrument design, Safety, Electronics

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Showing 5 of 20 publications

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