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Title: Initial experimental test of a helicon plasma based mass filter

Journal Article · · Plasma Sources Science and Technology

High throughput plasma mass separation requires rotation control in a high density multi-species plasmas. A preliminary mass separation device based on a helicon plasma operating in gas mixtures and featuring concentric biasable ring electrodes is introduced. Plasma profile shows strong response to electrode biasing. In light of floating potential measurements, the density response is interpreted as the consequence of a reshaping of the radial electric field in the plasma. This field can be made confining or de-confining depending on the imposed potential at the electrodes, in a way which is consistent with single particle orbit radial stability. In conclusion, concurrent spatially resolved spectroscopic measurements suggest ion separation, with heavy to light ion emission line ratio increasing with radius when a specific potential gradient is applied to the electrodes.

Research Organization:
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-09CH11466
OSTI ID:
1257876
Report Number(s):
PPPL-5197; TRN: US1601761
Journal Information:
Plasma Sources Science and Technology, Vol. 25, Issue 3; ISSN 0963-0252
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 21 works
Citation information provided by
Web of Science

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The influence of reflex discharge electric field on propagation of injected lead plasma jet journal December 2018
Comparison of probe and narrow-band imaging measurements in a magnetized cylindrical plasma journal February 2019
E  ×  B configurations for high-throughput plasma mass separation: An outlook on possibilities and challenges journal April 2019
Radial current and rotation profile tailoring in highly ionized linear plasma devices journal August 2019
A necessary condition for perpendicular electric field control in magnetized plasmas journal December 2019
Negative electric potential in a cylindrical plasma column with magnetized electrons journal January 2020
Radial Current and Rotation Profile Tailoring in Highly Ionized Linear Plasma Devices text January 2019