Based on a self-consistent solution of the equations of gas dynamics, kinetics of hydrogen atomic level populations, and radiative transfer, we analyze the structure of a shock wave that propagates in a partially ionized hydrogen gas. We consider the radiative transfer at the frequencies of ...
Excitation by narrow-band lasers may result in the selective population of wanted levels, which emit their excitation energy as fluorescence photons. Such a laser-induced fluorescence (LIF) spectrum is much simpler than the emission spectrum of a gas discharge, where the superposition of fluorescence...
Most of what is known about atomic (and molecular) structure and mechanics has been deduced from spectroscopy.Fig. 1.8shows two different types of spectra. Acontinuous spectrumcan be produced by an incandescent solid or gas at high pressure.Blackbody radiation, for example, gives a continuum. An...
computed from theFp/Fsspectrum and the PHOENIX stellar spectrum. The shortest wavelengths of the NIRISS/SOSS first order reach the maximum of the planetary spectral energy distribution, thereby enclosing 65% of the total thermal energy emitted by the planet. Blackbody spectra for temperaturesT =...
who conducted the experiment of hydrogen emission spectrum in a magnetic field. 塞曼做了一个,磁场中的氢原子光谱实验。 固态化学导论课程节选 : 麻省理工公开课 So, let's say we're looking at an element and we have an emission spectra, and we know that it has five distinct different kinetic ...
∙When current is passed through a glass tube filled with hydrogen, a pinkish glow is given off.-Does hydrogen emit a continuous spectrum?-What is this called?-Each element has its own characteristic line-emission spectrum.-Attempts to explain this phenomenon led to the development of the ...
- Does hydrogen emit a continuous spectrum? - What is this called? - Each element has its own characteristic line-emission spectrum. - Attempts to explain this phenomenon led to the development of the quantum theory. Line-Emission Spectrum Why do atoms emit specific line-emission spectra instead...
Our NDIR gas sensor FLOWEVO / FLOWEVO plus as basis the IR principle uses the individual absorption spectrum of the gas to be detected and specifies the concentration by the precise quantitative analysis. Because all measured gases absorb IR radiation in a different spectrum a so called “fingerp...
The emission spectrum is a phrase commonly encountered in chemistry and usually refers to an element or specific compound. We have to understand that the emission spectrum of an element/compound is different from the absorption spectrum. One distinct application of an emission spectrum is to ...
chromatographic peaks may be obtained. Different gases are used for the determination of different groups of elements. For the simultaneous determination of carbon, hydrogen, chlorine, and bromine, oxygen is the chosen gas; but if elements that form refractory compounds are present, hydrogen would ...