Laser-based foilless diode
A foilless diode usually requires an externally applied magnetic field to control expansion and transport of a relativistic electron beam. A new foilless diode has been developed that does not require an external magnetic field. A low pressure organic gas is introduced into the diode and the transport region. A uv laser beam is injected through the transport region and is terminated at the cathode. The laser photoionizes the low pressure gas forming an ionized channel that captures the electron beam near the cathode. The electron beam is focused and guided by electrostatic attraction to the ionized channel. A 1.5-MeV, 20-kA electron beam has been generated and transported 1 m using this technique.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 5420405
- Report Number(s):
- SAND-85-1338C; CONF-8506141-3; ON: DE85013958
- Country of Publication:
- United States
- Language:
- English
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Laser generation and transport of a relativistic electron beam
Laser-based foilless diode
Related Subjects
430200* -- Particle Accelerators-- Beam Dynamics
Field Calculations
& Ion Optics
ACCELERATORS
AIR
BEAM TRANSPORT
BEAMS
CHERENKOV COUNTERS
CURRENTS
DIODE TUBES
ELECTRIC CURRENTS
ELECTRIC POTENTIAL
ELECTROMAGNETIC RADIATION
ELECTRON BEAMS
ELECTRON TUBES
ENERGY RANGE
FLUIDS
GASES
IONIZATION
LASER RADIATION
LEPTON BEAMS
LINEAR ACCELERATORS
MEASURING INSTRUMENTS
PARTICLE BEAMS
PHOTODIODES
PHOTOIONIZATION
RADIATION DETECTORS
RADIATIONS
RELATIVISTIC RANGE
SEMICONDUCTOR DEVICES
SEMICONDUCTOR DIODES