Positron scattering from carbon dioxide
نویسندگان
چکیده
منابع مشابه
Rayleigh-Brillouin scattering of carbon dioxide.
The spectral line shape of spontaneous Rayleigh-Brillouin scattering in CO2 is studied in a range of pressures. The spectrum is influenced by the bulk viscosity η(b), which is a relaxation phenomenon involving the internal degrees of freedom of the molecule. The associated relaxation rates can be compared to the frequency shift of the scattered light, which demands precise measurements of the s...
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The goal of carbon sequestration is to take CO2 that would otherwise accumulate in the atmosphere and put it in safe and permanent storage. Most proposed methods would capture CO2 from concentrated sources like power plants. Indeed, on-site capture is the most sensible approach for large sources and initially offers the most cost-effective avenue to sequestration. For distributed, mobile source...
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0009-2614/$ see front matter 2008 Elsevier B.V. A doi:10.1016/j.cplett.2008.07.049 * Corresponding author. Fax: +31 20 59 87 992. E-mail address: [email protected] (D. Ityaksov). Cavity ring-down spectroscopy and pressure ramp measurements have been used to determine the extinction coefficients of CO2 in the deep-ultraviolet wavelength region, between 198 and 270 nm. The observed optical extin...
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Positron scattering from helium has been historically limited to experiments with energy resolution of 0.5 eV or worse. A new apparatus has been developed that allows the investigation of scattering processes with an energy resolution as good as 30 meV, allowing new experimental insight into positron helium interactions. High resolution measurements of low energy scattering from helium will be ...
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1,1-difluoroethylene (1,1-C2H2F2) molecules have been studied for the first time experimentally and theoretically by electron and positron impact. 0.4-1000 eV electron and 0.2-1000 eV positron impact total cross sections (TCSs) were measured using a retarding potential time-of-flight apparatus. In order to probe the resonances observed in the electron TCSs, a crossed-beam method was used to inv...
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ژورنال
عنوان ژورنال: Physical Review A
سال: 2006
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.74.012707