Observation of the emission spectrum from a Grimm-type glow discharge plasma with nitrogen-helium gas mixturesNot Availabledoi:10.1016/0584-8547(88)80009-0Wagatsuma, KazuakiHirokawa, KichinosukeElsevier B.V.Spectrochimica Acta Part B Atomic Spectroscopy...
Helium emission spectrum. How strange that a substance that did not form mol- ecules could be found inside so many minerals.8 How did it get inside these minerals, if it does not like to bond with anything? Why was this chemically useless element found in radioactive minerals? Was the ...
The spectrum of the gas evolved upon heating of cleveite contained the same line. Helium in nature. On earth there is a small amount of helium: 1 cu m of air contains only 5.24 cu cm of helium, and each kilogram of the earth’s material contains 0.003 mg of helium. However, helium ...
This transition manifests in the optical power spectrum by the generation of symmetric and asymmetric optical sidebands, along with the generation of standing and traveling superfluid acoustic waves on the surface of the resonator, respectively (He et al., 2020). 5.3 Applications: Superfluid ...
Oxygen gas was irradiated with 34.5 Mev bremsstrahlung. The spectrum of protons between 6 and 22 Mev was measured with a NaI(Tl) scintillation spectrometer... Finckh - 《Z Physik》 被引量: 10发表: 1961年 MeV γ-ray yield from solid targets irradiated with fs-laser pulses. We have investig...
Why is the spectrum of hydrogen composed of discrete lines? Why do elements form compounds? Explain why nitrogen has a stronger attraction for H+ than oxygen? Why is bromine often written as Br2? What was the argument used by Bartlett that led him to the first synthesis of a noble-gas co...
the dark lines that Fraunhofer had discovered represented light being absorbed by a cooler element at the surface of the sun. “The two scientists found that every chemical element produces a unique spectrum,” theAmerican Institute of Physicswrites. “This provides a sort of ‘fingerprint’ which...
10. ^ Ramsay, William (1895). "On a Gas Showing the Spectrum of Helium, the Reputed Cause of D3 , One of the Lines in the Coronal Spectrum. Preliminary Note". Proceedings of the Royal Society of London 58: 65–67. doi:10.1098/rspl.1895.0006. ...
(1994) reported a flux cutoff shortward of redshifted He II Ly α : emission in the HST prism spectrum of the quasar 0302–003 ( z = 3.286), with the optical depth -1.0+∞ . The spectrum of quasar HS1700+64 ( z = 2.743) recently obtained with the Hopkins Ultraviolet Telescope (...
High-order harmonic generation (HHG) provides a useful source of coherent, ultrafast light in the extreme ultraviolet (EUV) region of the spectrum, with applications in ultrafast atomic and molecular dynamics, coherent control of electro... M Murnane - Aps Division of Atomic, Molecular & Optical...