Characterization of a metastable neon beam extracted from a commercial RF ion source

B. Ohayon; E. Wahlin; G. Ron

doi:10.1088/1748-0221/10/03/P03009

Characterization of a metastable neon beam extracted from a commercial RF ion source

B. Ohayon, E. Wahlin, G. Ron^*

^*Corresponding author for this work

Racah Institute of Physics

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

9 Scopus citations

Abstract

We have used a commercial RF ion-source to extract a beam of metastable neon atoms. The source was easily incorporated into our existing system and was operative within a day of installation. The metastable velocity distribution, flux, flow, and efficiency were investigated for different RF powers and pressures, and an optimum was found at a flux density of 2×10¹² atoms/s/sr. To obtain an accurate measurement of the amount of metastable atoms leaving the source, we insert a Faraday cup in the beam line and quench some of them using a weak 633nm laser beam. In order to determine how much of the beam was quenched before reaching our detector, we devised a simple model for the quenching transition and investigated it for different laser powers. This detection method can be easily adapted to other noble gas atoms.

Original language	English
Article number	P03009
Journal	Journal of Instrumentation
Volume	10
Issue number	3
DOIs	https://doi.org/10.1088/1748-0221/10/03/P03009
State	Published - 10 Mar 2015

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Publisher Copyright:
© 2015 IOP Publishing Ltd and Sissa Medialab srl.

Keywords

Detector alignment and calibration methods (lasers, sources, particle-beams)
Ion sources (positive ions, negative ions, electron cyclotron resonance (ECR), electron beam (EBIS))
Lasers
Plasma generation (laser-produced, RF, x ray-produced)

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title = "Characterization of a metastable neon beam extracted from a commercial RF ion source",

abstract = "We have used a commercial RF ion-source to extract a beam of metastable neon atoms. The source was easily incorporated into our existing system and was operative within a day of installation. The metastable velocity distribution, flux, flow, and efficiency were investigated for different RF powers and pressures, and an optimum was found at a flux density of 2×1012 atoms/s/sr. To obtain an accurate measurement of the amount of metastable atoms leaving the source, we insert a Faraday cup in the beam line and quench some of them using a weak 633nm laser beam. In order to determine how much of the beam was quenched before reaching our detector, we devised a simple model for the quenching transition and investigated it for different laser powers. This detection method can be easily adapted to other noble gas atoms.",

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AU - Ohayon, B.

AU - Wahlin, E.

AU - Ron, G.

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N2 - We have used a commercial RF ion-source to extract a beam of metastable neon atoms. The source was easily incorporated into our existing system and was operative within a day of installation. The metastable velocity distribution, flux, flow, and efficiency were investigated for different RF powers and pressures, and an optimum was found at a flux density of 2×1012 atoms/s/sr. To obtain an accurate measurement of the amount of metastable atoms leaving the source, we insert a Faraday cup in the beam line and quench some of them using a weak 633nm laser beam. In order to determine how much of the beam was quenched before reaching our detector, we devised a simple model for the quenching transition and investigated it for different laser powers. This detection method can be easily adapted to other noble gas atoms.

AB - We have used a commercial RF ion-source to extract a beam of metastable neon atoms. The source was easily incorporated into our existing system and was operative within a day of installation. The metastable velocity distribution, flux, flow, and efficiency were investigated for different RF powers and pressures, and an optimum was found at a flux density of 2×1012 atoms/s/sr. To obtain an accurate measurement of the amount of metastable atoms leaving the source, we insert a Faraday cup in the beam line and quench some of them using a weak 633nm laser beam. In order to determine how much of the beam was quenched before reaching our detector, we devised a simple model for the quenching transition and investigated it for different laser powers. This detection method can be easily adapted to other noble gas atoms.

KW - Detector alignment and calibration methods (lasers, sources, particle-beams)

KW - Ion sources (positive ions, negative ions, electron cyclotron resonance (ECR), electron beam (EBIS))

KW - Lasers

KW - Plasma generation (laser-produced, RF, x ray-produced)

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Characterization of a metastable neon beam extracted from a commercial RF ion source

Abstract

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Keywords

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