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A Linear Acceleration in Space--The Beam Experiment Aboard Rocket
Patrick G. O'Shea,Thomas A. Butler,Michael T. Lynch,Kenneth F. McKenna,Morris B. Pongratz +4 more
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TLDR
The BEAM experiment Aboard Rocket (BEAR) linear accelerator was successfully launched and operated in space on July 13, 1989, and demonstrated that a neutral hydrogen beam could be successfully propagated in an exoatmospheric environment.Abstract:
On July 13, 1989 the BEAM experiment Aboard Rocket (BEAR) linear accelerator was successfully launched and operated in space. The flight demonstrated that a neutral hydrogen beam could be successfully propagated in an exoatmospheric environment. The accelerator, which was the result of an extensive collaboration between Los Alamos National Laboratory and industrial partners, was designed to produce a 10 mA (equivalent), 1 MeV neutral hydrogen beam in 50 {mu}s pulses at 5 Hz. The major components were a 30 keV H{sup {minus}} injector a 1 MeV radio frequency quadrupole, two 425 Mhz RF amplifiers, a gas cell neutralizer, beam optics, vacuum system and controls. The design was strongly constrained by the need for a lightweight rugged system that would survive the rigors of launch and operate autonomously. Following the flight the accelerator was recovered and operated again on the laboratory. 6 figs., 2 tabs.read more
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Active Experiments in Space: The Future
TL;DR: In this article, the authors reviewed the technologies that are being developed to enable future space active experiments, including the development of compact relativistic accelerators, superparamagnetic particle amplified antennae, CubeSats, and a new understanding of how to control dynamic spacecraft charging.
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Solving the auroral-arc-generator question by using an electron beam to unambiguously connect critical magnetospheric measurements to auroral images
Joseph E. Borovsky,Gian Luca Delzanno,E. E. Dors,Michelle F. Thomsen,Ennio R. Sanchez,Michael G. Henderson,Robert A. Marshall,Brian E. Gilchrist,G. Miars,Bruce E. Carlsten,S. A. Storms,Michael A. Holloway,Dinh Nguyen +12 more
TL;DR: In this article, an active mapping mission is described that unambiguously connects measurements in the Earth's magnetosphere to visible aurora in the atmosphere, where an electron-beam source operated on a spacecraft in the equatorial magnetosphere, with the electron beam traveling along the Earth magnetic-field lines to the atmosphere and depositing its energy to create an optical beam-spot at the footpoint of the spacecraft's magnetic field line.
Journal ArticleDOI
Prospects of Using a Pulsed Electrostatic Tractor With Nominal Geosynchronous Conditions
Joseph Hughes,Hanspeter Schaub +1 more
TL;DR: In this paper, the electrostatic tractor (ET) was used to irradiate a passive debris object to create an attractive tugging force, which can be used as a means of touchless actuation for geosynchronous debris reorbiting, detumbling, and formation flying.
Journal ArticleDOI
Space-Borne Electron Accelerator Design
John W. Lewellen,Cynthia Eileen Buechler,Bruce E. Carlsten,Gregory E. Dale,Michael A. Holloway,Douglas E. Patrick,S. A. Storms,Dinh C. Nguyen +7 more
TL;DR: In this article, the authors describe the initial testing of a compact space-borne RF accelerator consisting of individual C-band cavities, each independently powered by a gallium nitride (GaN) HEMT.
Journal ArticleDOI
History of Los Alamos Participation in Active Experiments in Space
TL;DR: Los Alamos has participated in nearly 100 non-nuclear experiments in space, the last being the NASA-sponsored "AA-2" strontium and europium doped barium thermite releases in the Arecibo beam in July of 1992 as discussed by the authors.
References
More filters
Journal ArticleDOI
Active Experiments in Space: The Future
TL;DR: In this article, the authors reviewed the technologies that are being developed to enable future space active experiments, including the development of compact relativistic accelerators, superparamagnetic particle amplified antennae, CubeSats, and a new understanding of how to control dynamic spacecraft charging.
Journal ArticleDOI
Solving the auroral-arc-generator question by using an electron beam to unambiguously connect critical magnetospheric measurements to auroral images
Joseph E. Borovsky,Gian Luca Delzanno,E. E. Dors,Michelle F. Thomsen,Ennio R. Sanchez,Michael G. Henderson,Robert A. Marshall,Brian E. Gilchrist,G. Miars,Bruce E. Carlsten,S. A. Storms,Michael A. Holloway,Dinh Nguyen +12 more
TL;DR: In this article, an active mapping mission is described that unambiguously connects measurements in the Earth's magnetosphere to visible aurora in the atmosphere, where an electron-beam source operated on a spacecraft in the equatorial magnetosphere, with the electron beam traveling along the Earth magnetic-field lines to the atmosphere and depositing its energy to create an optical beam-spot at the footpoint of the spacecraft's magnetic field line.
Journal ArticleDOI
Prospects of Using a Pulsed Electrostatic Tractor With Nominal Geosynchronous Conditions
Joseph Hughes,Hanspeter Schaub +1 more
TL;DR: In this paper, the electrostatic tractor (ET) was used to irradiate a passive debris object to create an attractive tugging force, which can be used as a means of touchless actuation for geosynchronous debris reorbiting, detumbling, and formation flying.
Journal ArticleDOI
Space-Borne Electron Accelerator Design
John W. Lewellen,Cynthia Eileen Buechler,Bruce E. Carlsten,Gregory E. Dale,Michael A. Holloway,Douglas E. Patrick,S. A. Storms,Dinh C. Nguyen +7 more
TL;DR: In this article, the authors describe the initial testing of a compact space-borne RF accelerator consisting of individual C-band cavities, each independently powered by a gallium nitride (GaN) HEMT.
Journal ArticleDOI
History of Los Alamos Participation in Active Experiments in Space
TL;DR: Los Alamos has participated in nearly 100 non-nuclear experiments in space, the last being the NASA-sponsored "AA-2" strontium and europium doped barium thermite releases in the Arecibo beam in July of 1992 as discussed by the authors.