Photodetachment of the [Formula Presented] ion at the [Formula Presented] threshold

D. H. Lee; M. B. Poston; D. J. Pegg; D. Hanstorp; U. Berzinsh

doi:10.1103/PhysRevA.60.715

Photodetachment of the [Formula Presented] ion at the [Formula Presented] threshold

D. H. Lee^*
, M. B. Poston
, D. J. Pegg
, D. Hanstorp
, U. Berzinsh

^*Corresponding author for this work

Institute of Atomic Physics and Spectroscopy

University of Tennessee
Chalmers University of Technology

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

8 Citations (Scopus)

Abstract

A crossed laser-ion beam apparatus has been used to spectroscopically analyze electrons detached from an 80-keV beam of [Formula Presented] ions at a photon energy of 1.903 eV. At this energy only the [Formula Presented] photodetachment channel is open. The photon flux dependence and the angular dependence of the measured electron yield were used to determine the photodetachment cross section [Formula Presented] Mb and the asymmetry parameter [Formula Presented], respectively. The measured cross section is in significant disagreement with a recent R-matrix calculation. The present measurement has been used to establish an absolute scale for previous relative total cross-section data over a photon energy range 1.1–3.1 eV.

Original language	English
Pages (from-to)	715-718
Number of pages	4
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	60
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevA.60.715
Publication status	Published - 1999

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title = "Photodetachment of the [Formula Presented] ion at the [Formula Presented] threshold",

abstract = "A crossed laser-ion beam apparatus has been used to spectroscopically analyze electrons detached from an 80-keV beam of [Formula Presented] ions at a photon energy of 1.903 eV. At this energy only the [Formula Presented] photodetachment channel is open. The photon flux dependence and the angular dependence of the measured electron yield were used to determine the photodetachment cross section [Formula Presented] Mb and the asymmetry parameter [Formula Presented], respectively. The measured cross section is in significant disagreement with a recent R-matrix calculation. The present measurement has been used to establish an absolute scale for previous relative total cross-section data over a photon energy range 1.1–3.1 eV.",

author = "Lee, \{D. H.\} and Poston, \{M. B.\} and Pegg, \{D. J.\} and D. Hanstorp and U. Berzinsh",

year = "1999",

doi = "10.1103/PhysRevA.60.715",

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AU - Lee, D. H.

AU - Poston, M. B.

AU - Pegg, D. J.

AU - Hanstorp, D.

AU - Berzinsh, U.

PY - 1999

Y1 - 1999

N2 - A crossed laser-ion beam apparatus has been used to spectroscopically analyze electrons detached from an 80-keV beam of [Formula Presented] ions at a photon energy of 1.903 eV. At this energy only the [Formula Presented] photodetachment channel is open. The photon flux dependence and the angular dependence of the measured electron yield were used to determine the photodetachment cross section [Formula Presented] Mb and the asymmetry parameter [Formula Presented], respectively. The measured cross section is in significant disagreement with a recent R-matrix calculation. The present measurement has been used to establish an absolute scale for previous relative total cross-section data over a photon energy range 1.1–3.1 eV.

AB - A crossed laser-ion beam apparatus has been used to spectroscopically analyze electrons detached from an 80-keV beam of [Formula Presented] ions at a photon energy of 1.903 eV. At this energy only the [Formula Presented] photodetachment channel is open. The photon flux dependence and the angular dependence of the measured electron yield were used to determine the photodetachment cross section [Formula Presented] Mb and the asymmetry parameter [Formula Presented], respectively. The measured cross section is in significant disagreement with a recent R-matrix calculation. The present measurement has been used to establish an absolute scale for previous relative total cross-section data over a photon energy range 1.1–3.1 eV.

UR - https://www.scopus.com/pages/publications/0342578324

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DO - 10.1103/PhysRevA.60.715

M3 - Article

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SN - 1050-2947

VL - 60

SP - 715

EP - 718

JO - Physical Review A - Atomic, Molecular, and Optical Physics

JF - Physical Review A - Atomic, Molecular, and Optical Physics

IS - 1

ER -

Photodetachment of the [Formula Presented] ion at the [Formula Presented] threshold

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