Induction plasma tube

Patent · Sun Jan 01 00:00:00 EST 1984

OSTI ID:864885

Hull, Donald E ^[1]

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1. Los Alamos, NM

An induction plasma tube having a segmented, fluid-cooled internal radiation shield is disclosed. The individual segments are thick in cross-section such that the shield occupies a substantial fraction of the internal volume of the plasma enclosure, resulting in improved performance and higher sustainable plasma temperatures. The individual segments of the shield are preferably cooled by means of a counterflow fluid cooling system wherein each segment includes a central bore and a fluid supply tube extending into the bore. The counterflow cooling system results in improved cooling of the individual segments and also permits use of relatively larger shield segments which permit improved electromagnetic coupling between the induction coil and a plasma located inside the shield. Four embodiments of the invention, each having particular advantages, are disclosed.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4431901
• OSTI ID: 864885
• Country of Publication: United States
• Language: English

Related Subjects

induction
plasma
tube
segmented
fluid-cooled
internal
radiation
shield
disclosed
individual
segments
thick
cross-section
occupies
substantial
fraction
volume
enclosure
resulting
improved
performance
sustainable
temperatures
preferably
cooled
means
counterflow
fluid
cooling
segment
central
bore
supply
extending
results
permits
relatively
larger
permit
electromagnetic
coupling
coil
located
inside
embodiments
particular
advantages
supply tube
internal volume
substantial fraction
improved performance
located inside
induction coil
plasma tube
radiation shield
central bore
tube extending
relatively larger
induction plasma
improved cooling
flow fluid
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