It is also observed that, as a function of distance from the exit plane, the emission intensities of several lines in the helium spectrum fall off proportionally, indicating that the emission observed does not derive from re-emission of photons originating in the arc which were absorbed by the...
Emission of hydrogen and helium nuclei from Au, Ag and Cu irradiated by 500MeV bremsstrahlung 来自 Springer 喜欢 0 阅读量: 32 作者:J.,Adler,Gert,I.,Andersson,H.,-�.,Gustafsson,Klavs,Hansen 摘要: The energy and angular distributions ofp, d, t,3He and4He from the three targets Cu, ...
An analysis is carried out on the relative importance of the various atomic processes in photoionized plasmas as a function of the electron temperature and irradiation conditions. In particular, we investigate the influence of K-shell photoionization of Li-like ions on the Hespectrum and of Be-...
Experimental results examining the influence of hydrogen introduced into argon glow discharge on spectral line intensities are presented. The cathode was made of titanium, an element with low atomic energy levels. Spectral lines intensity of sputtered material (Ti I) and carrier gas (Ar I and Ar ...
Of course, in order to be a useful technique for monitoring of switching, either only one of the states of the switch should be emissive, or both but each with emission of different wavelengths. Emission spectroscopy in the X-ray region of the electromagnetic spectrum will be discussed in ...
A system of three red degraded bands at 3854, 4228, and 3567 has been obtained in emission from a hollow cathode discharge through helium containing a little phosphorus vapor and hydrogen. Rotational analyses of the bands show that they are the 0–0, 0–1, and 1–0 bands of a 2Δ-2...
emission spectrum of CNTs is in the range of 900–1600 nm[74], particularly useful for skin and other biological membrane transparency[84]. CNTs used as molecular fluorophores show no apparent photobleaching and blinking effect. The fluorescence quantum yield of SWCNTs can be as high as 20%[...
Let’s start with this emission line here at about 422 nanometers. Looking at our spectrum of hydrogen, we don’t see a feature at or near that wave length. This tells us that the two emission spectra do not match. And so are unknown gas can’t be hydrogen. Next, if we consider ...
For A stars, which have surface temperatures around 10 000 K, the n = 2 level of hydrogen can be excited and, because H is by far the most abundant element in (almost) all stars, the opacity and hence the visual region of the spectrum are dominated by absorption out of these levels ...
Helium gas was applied as the main gas in this study although other gases such as hydrogen, deuterium, nitrogen and neon were also used in our parallel studies. Two main MSPC detectors were used; single circular MSPC detectors (26 cm in diameter, the size of the PFD cylinder base) to...