Spatially resolved energy analyzer measurements of an ion beam on the low potential side of a current-free double-layer

Christine Charles

doi:10.1109/TPS.2005.844958

Spatially resolved energy analyzer measurements of an ion beam on the low potential side of a current-free double-layer

Christine Charles^*

^*Corresponding author for this work

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

18 Citations (Scopus)

Abstract

Spatially resolved measurements of a supersonic Ar⁺ ion beam are obtained using a movable retarding field energy analyzer positioned on the low potential side of a current-free helicon double-layer (DL). The DL is generated near the open end of the helicon source where the fairly "collisionless" argon plasma is expanding in a diverging magnetic field for a radio frequency power of 250 W and a pressure of about 0.35 mtorr. The potential drop of the DL induces ion acceleration and the formation of an ion beam which propagates downstream of the DL. An image showing the ion beam spatial properties 12 cm downstream of the DL is presented.

Original language	English
Pages (from-to)	336-337
Number of pages	2
Journal	IEEE Transactions on Plasma Science
Volume	33
Issue number	2 I
DOIs	https://doi.org/10.1109/TPS.2005.844958
Publication status	Published - Apr 2005

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AB - Spatially resolved measurements of a supersonic Ar+ ion beam are obtained using a movable retarding field energy analyzer positioned on the low potential side of a current-free helicon double-layer (DL). The DL is generated near the open end of the helicon source where the fairly "collisionless" argon plasma is expanding in a diverging magnetic field for a radio frequency power of 250 W and a pressure of about 0.35 mtorr. The potential drop of the DL induces ion acceleration and the formation of an ion beam which propagates downstream of the DL. An image showing the ion beam spatial properties 12 cm downstream of the DL is presented.

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KW - Expanding

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JO - IEEE Transactions on Plasma Science

JF - IEEE Transactions on Plasma Science

IS - 2 I

ER -

Spatially resolved energy analyzer measurements of an ion beam on the low potential side of a current-free double-layer

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