High-current-density, high brightness cathodes for free electron laser applications
- Varian Associates, Palo Alto, CA (USA). Palo Alto Microwave Tube Div.
This report discusses the following topics: brightness and emittance of electron beams and cathodes; general requirements for cathodes in high brightness electron guns; candidate cathode types; plasma and field emission cathodes; true field emission cathodes; oxide cathodes; lanthanum hexaborides cathodes; laser driven thermionic cathodes; laser driven photocathodes; impregnated porous tungsten dispenser cathodes; and choice of best performing cathode types.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA); Varian Associates, Palo Alto, CA (USA). Palo Alto Microwave Tube Div.
- Sponsoring Organization:
- DOD
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 6311267
- Report Number(s):
- UCRL-CR-105111; ON: DE91005195
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
426002* -- Engineering-- Lasers & Masers-- (1990-)
43 PARTICLE ACCELERATORS
430300 -- Particle Accelerators-- Auxiliaries & Components
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450500 -- Military Technology
Weaponry
& National Defense-- Strategic Defense Initiative-- (1990-)
BALLISTIC MISSILE DEFENSE
BEAM EMITTANCE
BEAMS
BORIDES
BORON COMPOUNDS
CATHODES
DESIGN
ELECTRODES
ELECTRON BEAMS
ELECTRON GUNS
EMISSION
FIELD EMISSION
FREE ELECTRON LASERS
LANTHANUM BORIDES
LANTHANUM COMPOUNDS
LASERS
LEPTON BEAMS
NATIONAL DEFENSE
PARTICLE BEAMS
PHOTOCATHODES
RARE EARTH COMPOUNDS
THERMIONIC EMITTERS
426002* -- Engineering-- Lasers & Masers-- (1990-)
43 PARTICLE ACCELERATORS
430300 -- Particle Accelerators-- Auxiliaries & Components
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450500 -- Military Technology
Weaponry
& National Defense-- Strategic Defense Initiative-- (1990-)
BALLISTIC MISSILE DEFENSE
BEAM EMITTANCE
BEAMS
BORIDES
BORON COMPOUNDS
CATHODES
DESIGN
ELECTRODES
ELECTRON BEAMS
ELECTRON GUNS
EMISSION
FIELD EMISSION
FREE ELECTRON LASERS
LANTHANUM BORIDES
LANTHANUM COMPOUNDS
LASERS
LEPTON BEAMS
NATIONAL DEFENSE
PARTICLE BEAMS
PHOTOCATHODES
RARE EARTH COMPOUNDS
THERMIONIC EMITTERS