Microwave electron cyclotron electron resonance (ECR) ion source with a large, uniformly distributed, axially symmetric, ECR plasma volume

Patent · 31 December 1995

OSTI ID:870373

Alton, Gerald D ^[1]

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1. Kingston, TN

An electron cyclotron resonance (ECR) ion source includes a primary mirror coil disposed coaxially around a vacuum vessel in which a plasma is induced and introducing a solenoidal ECR-producing field throughout the length of the vacuum vessel. Radial plasma confinement is provided by a multi-cusp, multi-polar permanent magnet array disposed azimuthally around the vessel and within the primary mirror coil. Axial confinement is provided either by multi-cusp permanent magnets at the opposite axial ends of the vessel, or by secondary mirror coils disposed on opposite sides of the primary coil.

• Research Organization: LOCKHEED MARTIN ENRGY SYST INC
• DOE Contract Number: AC05-84OR21400
• Assignee: Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)
• Patent Number(s): US 5506475
• OSTI ID: 870373
• Country of Publication: United States
• Language: English

Related Subjects

/315/
array
axial
axially
axially symmetric
azimuthally
coaxially
coil
coil disposed
coils
coils disposed
confinement
cyclotron
cyclotron resonance
disposed
disposed coaxially
distributed
ecr
ecr plasma
ecr-producing
electron
electron cyclotron
field
field throughout
induced
introducing
length
magnet
magnets
microwave
microwave electron
mirror
mirror coil
mirror coils
multi-cusp
multi-polar
opposite
permanent
permanent magnet
permanent magnets
plasma
plasma confinement
plasma volume
primary
primary mirror
provided
radial
resonance
secondary
secondary mirror
solenoidal
source
symmetric
throughout
uniformly
uniformly distribute
uniformly distributed
vacuum
vacuum vessel
vessel
volume