Observation of an intensity anomaly in the 3s23p 2P1/2, 3/2-3s3p22S1/2 and 2P1/2 resonance transitions in the Al I isoelectronic sequence

Lars Engström; N. Reistad; C. Jupén; M. Westerlind

doi:10.1088/0031-8949/39/1/009

Observation of an intensity anomaly in the 3s²3p ²P_{1/2, 3/2}-3s3p²²S_1/2 and ²P_1/2 resonance transitions in the Al I isoelectronic sequence

Lars Engström, N. Reistad, C. Jupén, M. Westerlind

Research output: Contribution to journal › Article › peer-review

Abstract

The intensity ratio of the two fine structure components in the 3s²3p ²P_J–3s3p ²S_1/2 and ²P_1/2 resonance transitions has been measured in Al-like S IV, Cl V, Ar VI and Ti X, using the beam-foil technique. Unexpectedly large deviations from the LS ratios are found, particularly in the ²P–²S case. Although these deviations can be understood qualitatively from theoretical calculations (also reported), large quantitative discrepancies are observed in the beginning of the sequence.

Original language	English
Pages (from-to)	66-69
Number of pages	4
Journal	Physica Scripta
Volume	39
Issue number	1
DOIs	https://doi.org/10.1088/0031-8949/39/1/009
Publication status	Published - 1989 Jan 1

Subject classification (UKÄ)

Atom and Molecular Physics and Optics

Access to Document

10.1088/0031-8949/39/1/009

Cite this

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title = "Observation of an intensity anomaly in the 3s23p 2P1/2, 3/2-3s3p22S1/2 and 2P1/2 resonance transitions in the Al I isoelectronic sequence",

abstract = "The intensity ratio of the two fine structure components in the 3s23p 2PJ–3s3p 2S1/2 and 2P1/2 resonance transitions has been measured in Al-like S IV, Cl V, Ar VI and Ti X, using the beam-foil technique. Unexpectedly large deviations from the LS ratios are found, particularly in the 2P–2S case. Although these deviations can be understood qualitatively from theoretical calculations (also reported), large quantitative discrepancies are observed in the beginning of the sequence.",

author = "Lars Engstr{\"o}m and N. Reistad and C. Jup{\'e}n and M. Westerlind",

year = "1989",

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T1 - Observation of an intensity anomaly in the 3s23p 2P1/2, 3/2-3s3p22S1/2 and 2P1/2 resonance transitions in the Al I isoelectronic sequence

AU - Engström, Lars

AU - Reistad, N.

AU - Jupén, C.

AU - Westerlind, M.

PY - 1989/1/1

Y1 - 1989/1/1

N2 - The intensity ratio of the two fine structure components in the 3s23p 2PJ–3s3p 2S1/2 and 2P1/2 resonance transitions has been measured in Al-like S IV, Cl V, Ar VI and Ti X, using the beam-foil technique. Unexpectedly large deviations from the LS ratios are found, particularly in the 2P–2S case. Although these deviations can be understood qualitatively from theoretical calculations (also reported), large quantitative discrepancies are observed in the beginning of the sequence.

AB - The intensity ratio of the two fine structure components in the 3s23p 2PJ–3s3p 2S1/2 and 2P1/2 resonance transitions has been measured in Al-like S IV, Cl V, Ar VI and Ti X, using the beam-foil technique. Unexpectedly large deviations from the LS ratios are found, particularly in the 2P–2S case. Although these deviations can be understood qualitatively from theoretical calculations (also reported), large quantitative discrepancies are observed in the beginning of the sequence.

U2 - 10.1088/0031-8949/39/1/009

DO - 10.1088/0031-8949/39/1/009

M3 - Article

AN - SCOPUS:84956073736

SN - 0031-8949

VL - 39

SP - 66

EP - 69

JO - Physica Scripta

JF - Physica Scripta

IS - 1

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