blackbody radiation


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blackbody radiation

[′blak¦bäd·ē ‚rā·dē′ā·shən]
(thermodynamics)
The emission of radiant energy which would take place from a blackbody at a fixed temperature; it takes place at a rate expressed by the Stefan-Boltzmann law, with a spectral energy distribution described by Planck's equation.
References in periodicals archive ?
The testing and characterization of these devices require a vacuum environment and typically involve exposing the device to a blackbody radiation source at a known temperature.
The blackbody radiation versus wavelength is a function of the temperature of the emitter.
To explain the energy distribution (and hence the entropy) in the blackbody radiation spectrum, Planck was forced to employ Boltzmann's statistical methods.
Stewart and Johnson trace the history of computation as it has been used for one very specific yet historically important problem--that of blackbody radiation.
The thermal radiation inside a spacetime or black hole is the blackbody radiation governed by the Planck law, from which one can derive the total energy of blackbody radiation inside a spacetime or black hole with radius R and temperature T to be
Tenders are invited for Vacuum Compatible Ir Blackbody Radiation Source
Key Words: Blackbody radiation, spectrometer, MATLAB, incandescent lamp, Planck's radiation law, spectrum
Elements new to this edition include: 3G and 4G cell phone systems, the engineering of modern wireless communication systems, new material on Plank's law of blackbody radiation, an expanded chapter on antennas, and more discussion of shadowing correlations and their effect on cell phone system design.
The first chapter starts with the theory of light, regarded as the full electromagnetic spectrum, including blackbody radiation, spectral-line radiation and non-thermal radiation.
Planck's blackbody radiation law, formulated in 1900 by German physicist Max Planck, describes how energy is dissipated, in the form of different wavelengths of radiation, from an idealized non-reflective black object, called a blackbody.
If Earthlings were at the center of a bubble, the spectrum of microwave background radiation that came directly to Earth--without reflection--would trace a blackbody radiation curve.
So set aside what you know about modern astrophysics and blackbody radiation and just believe your eyes for a night.