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Absolute photoabsorption cross section of C60 in the extreme ultraviolet

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Bibliographic Details
Title: Absolute photoabsorption cross section of C60 in the extreme ultraviolet
Authors: Mori, T.1, Kou, J.1, Haruyama, Y.2, Kubozono, Y.2, Mitsuke, K.1,3 mitsuke@ims.ac.jp
Source: Journal of Electron Spectroscopy & Related Phenomena. Jun2005, Vol. 144-147, p243-246. 4p.
Subjects: Light absorption, Fullerenes, Collisions (Nuclear physics), Particles (Nuclear physics)
Abstract: Abstract: The absolute photoabsorption cross section curve of C60 has been determined by means of mass spectrometry with the photon source of monochromatized synchrotron radiation of hν =24.5–150eV. Description has been made on a high-temperature source of gaseous fullerenes and an efficient time-of-flight mass spectrometer. The cross section was estimated by assuming an approximate expression of the number density of C60 in the ionization region. The resultant values were 762, 241, and 195Mb at hν =24.5, 90, and 110eV, respectively, with about 10% errors. The cross section curve was then normalized at hν =25eV to the absolute photoabsorption cross section reported by Jaensch and Kamke [R. Jaensch, W. Kamke, Mol. Mater. 13 (2000) 143], the most reliable data so far available in the valence excitation region of C60. Accordingly, the present cross section data were altered to 407, 144, and 114Mb at hν =25, 90, and 110eV, respectively. [Copyright &y& Elsevier]
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Database: Engineering Source
Description
Abstract:Abstract: The absolute photoabsorption cross section curve of C60 has been determined by means of mass spectrometry with the photon source of monochromatized synchrotron radiation of hν =24.5–150eV. Description has been made on a high-temperature source of gaseous fullerenes and an efficient time-of-flight mass spectrometer. The cross section was estimated by assuming an approximate expression of the number density of C60 in the ionization region. The resultant values were 762, 241, and 195Mb at hν =24.5, 90, and 110eV, respectively, with about 10% errors. The cross section curve was then normalized at hν =25eV to the absolute photoabsorption cross section reported by Jaensch and Kamke [R. Jaensch, W. Kamke, Mol. Mater. 13 (2000) 143], the most reliable data so far available in the valence excitation region of C60. Accordingly, the present cross section data were altered to 407, 144, and 114Mb at hν =25, 90, and 110eV, respectively. [Copyright &y& Elsevier]
ISSN:03682048
DOI:10.1016/j.elspec.2005.01.110