Results 261 to 270 of about 4,722,607 (293)

Performance enhancement using power beaming for electric propulsion Earth orbital transporters [PDF]

open access: yesIEEE Aerospace and Electronic Systems Magazine, 1991
An electric propulsion Earth orbital transport vehicle (EOTV) can effectively deliver large payloads using much less propellant than chemical transfer methods.
Dagle, J.E.
exaly   +1 more source

High power beam analysis

SPIE Proceedings, 2014
In various modern scientific and industrial laser applications, beam-shaping optics manipulates the laser spot size and its intensity distribution. However the designed laser spot frequently deviates from the design goal due to real life imperfections and effects, such as: input laser distortions, optical distortion, heating, overall instabilities, and
openaire   +1 more source

High-Power Particle Beams (BEAMS' 90)

High-Power Particle Beams (BEAMS' 90), 1990
Boris N. Breizman, Boris A. Knyazev
openaire   +2 more sources

Polyconductor beam power sensor

International Journal of Electronics, 1991
Abstract The design is presented of a sensor circuit for the thermal detection and power measurement of incident microwave and laser beams due to accidental or targeted exposure. In this sensor, a polyconductor device acts as a microwave or optical beam absorber.
openaire   +1 more source

Beam Shaping Of Powerful Lasers

SPIE Proceedings, 1989
Apodized (soft) apertures(AA) of 2-50 mm diameter with the near-Gaussian and the flat top spatial profiles in ultraviolet, visible and infrared regions are presented. They have the high thresholds for intensity damage.
openaire   +1 more source

Power Flow in Electron Beams

Journal of Applied Physics, 1955
The ac power flow in an electron beam moving in weak electric fields is given a precise definition. Since it is a quantity quadratic in the applied field strength its evaluation requires the quadratic perturbation theory of the beam to be worked out.
openaire   +1 more source

Welding and cutting with power beams

1988
Peter Houldcroft, Robert John
openaire   +1 more source

Diagnostics for high power beams

2013
A review will be presented of the most common and recently developed diagnostics used to characterize high power particle beams in fusion experiments. In particular, diagnostics will play a key role in assessing the demanding specifications of the heating neutral beam injectors of the ITER experimental fusion reactor.
openaire   +2 more sources

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