DOI: 10.1098/rspa.1953.0172. The photo-ionization cross-section of neon

The photo-ionization cross-section of neon

10.1098/rspa.1953.0172

Crossref journal-article

The Royal Society

Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences (175)

Abstract

The absorption of radiation of wave-length between 230 and 800 Å in neon was measured photometrically in a grazing incidence vacuum spectrograph. For wave-lengths longer than that corresponding to the first ionization limit the absorption coefficients were found to be zero except for photo-excitation of resonance transitions. Two sharp absorption edges were observed at 575 and 256 Å corresponding to the L 3 - and L 1 -edges respectively with a flat maximum between them. The photo-ionization cross-section at the first ionization limit was found to be 5⋅4 x 10 -18 cm 2 independent of the pressure between 50 and 500 μ ; this should be compared with the theoretical value of 5⋅8 x 10 -18 cm 2 obtained by Seaton using a dipole-length approximation. Between 575 and 400 Å the calculated and experimental curves agreed closely within the limits of measurement.

Bibliography

The photo-ionization cross-section of neon. (1953). Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 220(1140), 71â76.

Authors 0

None

References 7 Referenced 22

Condon E. U. & Shortley G. H. 1951 The theory of atomic structure. Cambridge University Press.
Lee Po & Weissler G. L. 1952
10.1364/JOSA.42.000080
Moore C. E. 1949 Atomic energy levels 1 76. Washington: National Bureau of Standards.
{'key': 'p_5', 'first-page': '408', 'article-title': 'Proc. Roy', 'volume': '208', 'author': 'Seaton M. J.', 'year': '1951', 'journal-title': 'Soc. A'} / Soc. A / Proc. Roy by Seaton M. J. (1951)
10.1364/JOSA.42.000084
10.1103/PhysRev.38.2016

Dates

Type	When
Created	18 years, 8 months ago (Dec. 15, 2006, 5:03 p.m.)
Deposited	4 years, 6 months ago (Feb. 17, 2021, 7:14 p.m.)
Indexed	1 year, 6 months ago (Feb. 8, 2024, 1:08 p.m.)
Issued	71 years, 10 months ago (Oct. 22, 1953)
Published	71 years, 10 months ago (Oct. 22, 1953)
Published Online	28 years, 8 months ago (Jan. 1, 1997)
Published Print	71 years, 10 months ago (Oct. 22, 1953)

Funders 0

None

BibTeX

@article{1953, volume={220}, ISSN={2053-9169}, url={http://dx.doi.org/10.1098/rspa.1953.0172}, DOI={10.1098/rspa.1953.0172}, number={1140}, journal={Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences}, publisher={The Royal Society}, year={1953}, month=oct, pages={71–76} }

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