L. G. Clark, J. D. Dibattista,
... testing in the space environment is required. The Long Duration Exposure Facility (LDEF) can provide this capability. Several of the ...
Tópico(s): Technology Assessment and Management
1978 - SPIE | Optical Engineering
M. E. Zolensky, F. Hörz, T. H. See, Ronald P. Bernhard, C. B. Dardano, Ruth A. Barrett, Kimberly S. Mack, Jack L. Warren, William H. Kinard,
The Long Duration Exposure Facility was recovered in January, 1990, following 5.7 years of continuous exposure in low‐Earth orbit. The ...
Tópico(s): Space Satellite Systems and Control
1994 - American Institute of Physics | AIP conference proceedings
Philip R. Young, Wayne S. Slemp,
The National Aeronautics and Space Administration's Long Duration Exposure Facility (LDEF) provided a unique environmental exposure of a wide variety of materials. The effects of 5 years and 9 months of low-Earth ...
Tópico(s): Space Exploration and Technology
1993 - American Chemical Society | ACS symposium series
Ronald P. Bernhard, Friedrich Hörz,
... surfaces from the Solar Maximum Satellite and the Long Duration Exposure Facility (LDEF), we conducted laboratory simulations of cosmic-dust ... found forcraters in aluminum surfaces retrieved from the Long Duration Exposure Facility, which were produced at impact velocities as high ...
Tópico(s): Space Satellite Systems and Control
1995 - Elsevier BV | International Journal of Impact Engineering
Yulei Fu, Fujun Peng, Chongfeng Zhang, Chengyue Sun, Zhankui Zeng, Guangqiang Fang,
... atomic oxygen (AO) is a potential threat to long-duration exposure facilities. In this work, a multi-faceted simulation for ... were validated by experimental data from the NASA long-duration exposure facility. The disintegration of the membrane could be divided ...
Tópico(s): Diamond and Carbon-based Materials Research
2021 - Elsevier BV | Acta Astronautica
A. K. Thompson, D. O’Sullivan, K.‐P. Wenzel, V. Domingo, C. O’Ceallaigh, John A. Daly, A.B. Smit,
The Long Duration Exposure Facility (LDEF), which is scheduled to be placed in Earth orbit during 1984 by the NASA Space Transportation ...
Tópico(s): Nuclear Physics and Applications
1984 - Pergamon Press | Nuclear Tracks and Radiation Measurements (1982)
Abstract The Long Duration Exposure Facility provided the opportunity for micrometeorite researchers to develop and test microparticle collection strategies for spacecraft, and the handling ...
Tópico(s): Laser-induced spectroscopy and plasma
2021 - Wiley | Meteoritics and Planetary Science
The Long Duration Exposure Facility (LDEF) was launched by the space shuttle in April, 1984, and recovered in January, 1990. There were ...
Tópico(s): Technology Assessment and Management
1993 - | Journal of the IEST
B. A. Harmon, C. E. Laird, G. J. Fishman, T. A. Parnell, D.C. Camp, C. Frederick, Donna Hurley, David Lindström, C.E. Moss, R. C. Reedy, J. H. Reeves, A. R. Smith, W.G. Winn, E. V. Benton,
We present an overview of the Long Duration Exposure Facility (LDEF) induced activation measurements. The LDEF, which was gravity-gradient stabilized, was exposed to the low Earth orbit (LEO) radiation environment over a 5.8 year period. Retrieved activation samples and structural components from the spacecraft were analyzed with low and ultra-low background HPGe gamma spectrometry at several national facilities. This allowed a very sensitive measurement of long-lived radionuclides produced by proton- and neutron-induced reactions in the time-dependent, non-isotropic LEO environment. A summary of major findings from ...
Tópico(s): Radiation Detection and Scintillator Technologies
1996 - Elsevier BV | Radiation Measurements
... from spacecraft surfaces is modelled for an idealized Long Duration Exposure Facility spacecraft structure in an orbit of 550 km ...
Tópico(s): Spacecraft and Cryogenic Technologies
1978 - Elsevier BV | Vacuum
E. Zinner, N. Pailer, H. Kuczera,
Described is a passive experiment for LDEF (Long Duration Exposure Facility) to measure the chemical and isotopic composition of interplanetary dust particles >10−10g for most of the major elements expected to be present. ...
Tópico(s): Nuclear Physics and Applications
1982 - Elsevier BV | Advances in Space Research
... for the Tethered Satellite System, Space Station, and Long-Duration Exposure Facilities to be deployed in the low-earth orbital ...
Tópico(s): Planetary Science and Exploration
1988 - Elsevier BV | Planetary and Space Science
Hugo M. Ortner, F. J. Stadermann,
... particle ratio. For this purpose, the LDEF-experiment (Long Duration Exposure Facility) was launched by NASA in 1984 to study ...
Tópico(s): Solar and Space Plasma Dynamics
2009 - Elsevier BV | International Journal of Refractory Metals and Hard Materials
Carsten Wiedemann, Maren Homeister, Michael Oswald, Sebastian Stabroth, H. Klinkrad, Peter Vörsmann,
... is under-predicted for some of the analyzed Long Duration Exposure Facility (LDEF) surfaces. This indicates that some past SRM ...
Tópico(s): Planetary Science and Exploration
2009 - Elsevier BV | Acta Astronautica
Darren McKnight, R. E. Dueber, Edward W. Taylor,
... on Fiber Optic Systems) was housed aboard the Long Duration Exposure Facility and placed into orbit on April 6, 1984, ...
Tópico(s): Planetary Science and Exploration
1991 - American Geophysical Union | Journal of Geophysical Research Atmospheres
J. A. M. McDonnell, Kyle T. Sullivan, T. J. Stevenson, Daniel Niblett,
Examination of surfaces exposed for more than five and a half years, from detectors with unique attitude stabilisation relative to the orbital velocity vector, offers scope for examining definitively the sources of hypervelocity space particulates. Surfaces reveal discrete crater morphologies, crater size distributions and incident flux distributions. Discrete crater studies will later also reveal the chemistry of residues which can, especially via the capture cell principle, lead to elemental analysis ...
Tópico(s): Stellar, planetary, and galactic studies
1991 - Springer Nature (Netherlands) | Astrophysics and space science library
M. E. Zolensky, Dale Atkinson, T. H. See, Martha K. Allbrooks, Charles G. Simon, Miria Finckenor, Jack L. Warren,
Covers advancements in spacecraft and tactical and strategic missile systems, including subsystem design and application, mission design and analysis, materials and structures, developments in space sciences, space processing and manufacturing, space operations, and applications of space technologies to other fields.
Tópico(s): Space exploration and regulation
1991 - American Institute of Aeronautics and Astronautics | Journal of Spacecraft and Rockets
... the UTIAS composite-materials experiment on the NASA Long Duration Exposure Facility after 70 months exposure in low Earth orbit. ...
Tópico(s): Plasma Diagnostics and Applications
1991 - NRC Research Press | Canadian Journal of Physics
B. A. Harmon, G. J. Fishman, T. A. Parnell, E. V. Benton, A.L. Frank,
The Long Duration Exposure Facility (LDEF), retrieved by the Space Shuttle mission STS-32 after nearly 6 yr in orbit, is the ...
Tópico(s): Radioactivity and Radon Measurements
1992 - Pergamon Press | International Journal of Radiation Applications and Instrumentation Part D Nuclear Tracks and Radiation Measurements
T. W. Armstrong, B. L. Colborn,
... parameters corresponding to those of the recently recovered long duration exposure facility (LDEF) satellite are used, which are also very ...
Tópico(s): Radioactivity and Radon Measurements
1992 - Pergamon Press | International Journal of Radiation Applications and Instrumentation Part D Nuclear Tracks and Radiation Measurements
Michael Kussmaul, Michael J. Mirtich, A. N. Curren,
... space radiator materials that were flown on the long duration exposure facility (LDEF) for 5.8 years in space. An ...
Tópico(s): Metal and Thin Film Mechanics
1992 - Elsevier BV | Surface and Coatings Technology
... nearly 6 years in space aboard the NASA Long-Duration Exposure Facility. Three different filter types were included. In general, ...
Tópico(s): Surface Roughness and Optical Measurements
1992 - Optica Publishing Group | Applied Optics
... after nearly 6 years in space aboard the Long Duration Exposure Facility satellite. Measurements were made at room temperature and ...
Tópico(s): Infrared Target Detection Methodologies
1992 - Optica Publishing Group | Applied Optics
D. D. Meisel, Diego Janches, J. D. Mathews,
... with those derived from IRAS dust bands and Long-Duration Exposure Facility cratering, thus confirming the applicability of the sample ...
Tópico(s): Astrophysics and Star Formation Studies
2002 - IOP Publishing | The Astrophysical Journal
D. Javorsek, Ephraim Fischbach, Vigdor L. Teplitz,
... The samples included gold flown on the NASA Long-Duration Exposure Facility, as well as geological samples and an iron ...
Tópico(s): Cosmology and Gravitation Theories
2002 - IOP Publishing | The Astrophysical Journal
Giuliano Allegri, S. Corradi, M. Marchetti, V. Milinchuck,
... available for Kapton® specimens flown both on the Long Duration Exposure Facility and Mir and retrieved after several months of ...
Tópico(s): Space Satellite Systems and Control
2003 - American Institute of Aeronautics and Astronautics | AIAA Journal
Kirn K. de Groh, Bruce A. Banks,
Covers advancements in spacecraft and tactical and strategic missile systems, including subsystem design and application, mission design and analysis, materials and structures, developments in space sciences, space processing and manufacturing, space operations, and applications of space technologies to other fields.
Tópico(s): Plasma Diagnostics and Applications
1994 - American Institute of Aeronautics and Astronautics | Journal of Spacecraft and Rockets
Hajime Yano, H.J. Fitzgerald, W. G. Tanner,
Tópico(s): Space Satellite Systems and Control
1994 - Elsevier BV | Planetary and Space Science
William H. Kinard, R. L. O'Neal, Brenda K. Wilson, James E. Jones, Arlene S. Levine, Raymond S. Calloway,
Tópico(s): Planetary Science and Exploration
1994 - Elsevier BV | Advances in Space Research