Intense steady state electron beam generator

Patent · Mon Jan 01 00:00:00 EST 1990

OSTI ID:867464

Hershcovitch, Ady ^[1]; Kovarik, Vincent J ^[2]; Prelec, Krsto ^[3]

---

1. Mount Sinai, NY
2. Bohemia, NY
3. Setauket, NY

An intense, steady state, low emittance electron beam generator is formed by operating a hollow cathode discharge plasma source at critical levels in combination with an extraction electrode and a target electrode that are operable to extract a beam of fast primary electrons from the plasma source through a negatively biased grid that is critically operated to repel bulk electrons toward the plasma source while allowing the fast primary electrons to move toward the target in the desired beam that can be successfully transported for relatively large distances, such as one or more meters away from the plasma source.

• Research Organization: Associated Universities, Inc., Upton, NY (United States)
• DOE Contract Number: AC02-76CH00016
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4942339
• OSTI ID: 867464
• Country of Publication: United States
• Language: English

Related Subjects

intense
steady
electron
beam
generator
emittance
formed
operating
hollow
cathode
discharge
plasma
source
critical
levels
combination
extraction
electrode
target
operable
extract
fast
primary
electrons
negatively
biased
grid
critically
operated
repel
bulk
allowing
move
desired
successfully
transported
relatively
distances
meters
beam generator
hollow cathode
plasma source
electron beam
discharge plasma
target electrode
negatively biased
desired beam
cathode discharge
extraction electrode
primary electron
critical levels
/315/250/313/