|
|
|
|
|
|
|
|
|
Fraunhofer lines
| Glossary Of Laser Terminology |
Fraunhofer was the inventor of the diffraction grating. he assigned letters to the black absorption lines in the solar spectrum. these resonance lines arise from energy absorption by elements in the outer atmospheres of stars that are cooler than the stellar gases below.
|
|
Fraunhofer zone, английский
See far field. frequency, fundamental: in resonance testing, the frequency at which the wavelength is twice the thickness of the test material.7,22 frequency, pulse repetition: number of pulses per second.7 frequency, test: nominal ultrasonic wave frequency used.7,22
Fraunhofer zone (ut), английский
Lin, английский
- Linear
- Linearity
- Liquid nitrogen
Lin, шведский
Lin linear, английский
Линейный, погонный
Lin-tofms, английский
Linear timeof- flight mass spectrometer
Lin., английский
Linimentum
Lina, английский
Lina, шведский
Linac, английский
Linear accelerator
Linage, английский
Число строк в печатной странице
Linair, английский
Libyan national airways
Linares, английский
- Г. линарес (испания);
- Г. линарес (чили)
Linarite, английский
Linb, английский
Linch or lins pin, английский
The iron pin which keeps the trucks of a gun-carriage confined to the axle-tree.
Linchar, английский
Causar la muerte de una persona, generalmente colgando, sin la autoridad legal
Lincoln, английский
- Г. линкольн (адм. центр шт. небраска, сша);
- Г. линкольн (адм. центр граф. линкольншир, англия, великобритания)
Lincoln air force base, английский
Авиационная база ввс имени линкольна
Lincoln c-band observable radar, английский
Рлс управления перспективных исследований лаборатории имени линкольна, работающая в диапазоне «с» и используемая для слежения
Diffraction, английский
- The "spreading" of waves into the lee of obstacles such as breakwaters by the transfer of wave energy along wave crests. diffracted waves are lower in height than incident waves.
- Дифракция
- Deviation of the direction of propagation of a radiation, determined by the wave nature of radiation, and occurring when the radiation passes the edge of an obstacle.
- A wave property which creates deviation from a straight line when the beam passes near an edge of an opaque object. deviation of part of a beam, determined by the wave nature of radiation and occurring when the radiation passes the edge of an opaque obstacle.
- Light curves or travels around small circular objects.
- The changing of direction (bending or spreading) that occurs when a light wave interacts with an opening or barrier
- (1) in acoustics, the reflection of a wave front when passing the edge of an ultrasonically opaque object. (2) in radiation technologies, a special case of scatter, where coherently scattered photons undergo interference or reinforcement, resulting in patterns indicative of the scattering medium. see also xray diffraction.
- (1) в акустике - отражение волнового фронта при прохождении края непрозрачного для ультразвука объекта. (2) в радиационных технологиях - особый случай рассеяния, когда когерентно рассеянные фотоны подвергаются интерференции или усилению, что приводит к образованию структур, указывающих на рассеивающую среду. см. также дифракция рентгеновских лучей.
- (1) in radiographic testing, special case of scatter, where coherently scattered (full intensity is retained) photons undergo interference or reinforcement, resulting in patterns indicative of the scattering medium. see also x-ray diffraction. (2) in ultrasonic testing, deflection of a wavefront when passing the edge of an ultrasonically opaque object.15
- Deflection of a wavefront when passing the edge of an ultrasonically opaque object.7,22
Absorption, немецкий
|
Energy source, английский
High voltage electricity, radio waves, flashes of light, or another laser used to excite the laser medium.
Fluence, английский
- Fluence measures the laser energy absorbed per unit of area treated. fluence is affected by beam energy / power density, laser pulse duration, wavelength and absorption of the tissue. fluence is measured by joules / cm2 and this equals laser pulse energy (j) divided by focal spot area (cm2).
- Optical energy per unit area
|
|
|
|
|
|
|
