beam diameter

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• Beam diameter — The beam diameter or beam width of an electromagnetic beam is the diameter along any specified line that is perpendicular to the beam axis and intersects it. Since beams typically do not have sharp edges, the diameter can be obtained in many… …   Wikipedia

• beam diameter — pluošto skersmuo statusas T sritis radioelektronika atitikmenys: angl. beam diameter vok. Strahldurchmesser, m rus. диаметр пучка, m pranc. diamètre du faisceau, m …   Radioelektronikos terminų žodynas

• laser beam diameter — lazerio pluošto skersmuo statusas T sritis radioelektronika atitikmenys: angl. laser beam diameter vok. Laserstrahldurchmesser, m rus. диаметр лазерного пучка, m pranc. diamètre de faisceau laser, m …   Radioelektronikos terminų žodynas

• Beam divergence — The beam divergence of an electromagnetic beam is an angular measure of the increase in beam diameter with distance from the optical aperture or antenna aperture from which the electromagnetic beam emerges. The term is relevant only in the far… …   Wikipedia

• Beam-powered propulsion — is a class of spacecraft propulsion mechanisms that use energy beamed to the spacecraft from a remote power plant. Most designs are rocket engines where the energy is provided by the beam, and is used to superheat propellant that then provides… …   Wikipedia

• electron beam diameter — Смотри диаметр пучка электронов …   Энциклопедический словарь по металлургии

• Beam parameter product — In laser science, the beam parameter product (BPP) is the product of a laser beam s divergence angle (half angle) and the radius of the beam at its narrowest point (the beam waist).cite web|url=http://www.rp photonics.com/beam parameter… …   Wikipedia

• Beam dump — A beam dump is a device that absorbs a beam. This may be a beam of photons ( light ) such as a laser beam, or a beam of electrically charged particles.Optical beam dumpsAn optical beam dump is an optical element used to absorb a beam of light.… …   Wikipedia

• Laser beam profiler — A laser beam profiler captures, displays, and records the spatial intensity profile of a laser beam at a particular plane transverse to the beam propagation path. Since there are many types of lasers ultraviolet, visible, infrared, continuous… …   Wikipedia

• Gaussian beam — In optics, a Gaussian beam is a beam of electromagnetic radiation whose transverse electric field and intensity (irradiance) distributions are well approximated by Gaussian functions. Many lasers emit beams that approximate a Gaussian profile, in …   Wikipedia

• Charged particle beam — A charged particle beam is a spatially localized group of electrically charged particles that have approximately the same velocity (speed and direction). The kinetic energies of the particles are typically measured in keV or MeV, much larger than …   Wikipedia