Development of an intense pulsed metallic ion beam source
Intense pulsed metallic ion beams (Al/sup +/, Cu/sup +/, and Pb/sup +/) were produced by a magnetically insulated ion diode which had a metal anode. Metal ion plasmas on the anode could be generated through enhanced electron bombardment by using a radial cathode. The energy, current density, and duration time of a lead ion beam were 30 -- 140 keV, -- 7.5 A/cm/sup 2/ (total ion current greater than or equal to 0.5 kA) and 800 ns, respectively. The ion current density exceeded the space-charge-limited current by a factor of 50. The lead ions in the first to sixth states of ionization were detected by a Thomson parabola ion spectrometer together with light ions, such as C/sup +/ and O/sup +/. The ratio of ion current of heavy metals to the total ion current was measured using a magnetic mass analyzer with a charge collector. The ratio was about 90 percent for a lead ion beam and 20 -- 50 percent for Al and Cu ion beams.
- Research Organization:
- Research Institute for Atomic Energy, Osaka City Univ., Osaka 558 (JP)
- OSTI ID:
- 7078830
- Journal Information:
- IEEE Trans. Plasma Sci.; (United States), Journal Name: IEEE Trans. Plasma Sci.; (United States) Vol. 16:4; ISSN ITPSB
- Country of Publication:
- United States
- Language:
- English
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ALUMINIUM IONS
ANODES
BEAM DYNAMICS
BEAM-PLASMA SYSTEMS
BEAMS
CATHODES
CHARGED PARTICLES
COPPER IONS
CURRENT DENSITY
DIODE TUBES
ELECTRODES
ELECTRON BEAMS
ELECTRON TUBES
HEAVY ION SPECTROMETERS
ION BEAM TARGETS
IONS
LEAD IONS
LEPTON BEAMS
MEASURING INSTRUMENTS
PARTICLE BEAMS
PLASMA PRODUCTION
SPECTROMETERS
TARGETS
THERMIONIC DIODES
THERMIONIC TUBES