Absorption Cross Sections and Photoionization Efficiencies of Benzene and Styrene Vapor in the Vacuum Ultraviolet
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概要
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absorption cross sections and photoionization efficiencies of benzene and styrene vapor have been measured in the wavelength regions of 600-2200 Å and of 600-1000 Å, respectively. Strong absorption peaks ascribed to the π-electron transition ^1A_<1g>⟶^1E_<1u> have been observed at 1790 Å for benzene and at 1960 Å for styrene. Corresponding oscillator strength are 0.91 and 0.62, respectively. A strong and broad continuum with its maximum at about 700 Å has been observed for both benzene and styrene; cross sections around the maximum are 140 and 180 in unit of 10^<-18>cm^2, respectively. Energy-loss spectra for styrene vapor have been deduced from the present results and compared with previous data on the solid polystyrene. It is pointed out on the basis of the above results, that the transitions at the energy-loss of 6.5-7 eV and of 20 eV can be interpreted as due to a molecular excitation and a photoionization process, respectively, and that the previous assignments as due to collective excitations are unnecessary.
- 社団法人日本物理学会の論文
- 1973-04-05
著者
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Suzuki Hitosi
Department Of Physics Faculty Of Science And Technology Sophia University
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Suzuki Hitosi
Department Of Pediatrics Fukushima Medical University School Of Medicine
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Yoshino Masuhiro
Laboratory Of Physics Faculty Of General Education Shibaura Institute Of Technology
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Takeuchi Jun
Department Of Material Science Shimane University
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Takeuchi Jun
Department Of Chemistry Faculty Of Engineering Shizuoka University
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Takeuchi Jun
Department Of Physics Faculty Of Science And Technology Sophia University
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Takeuchi Jun
Department Of Chemical Science And Technology Faculty Of Engineering Kyushu University
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