Advances in ICF using light-ion beams
PBFA II, with parameters of 3.5 MJ and 100 TW, is being designed to allow inertial fusion ignition experiments using imploding foils or light ion beams. Imploding foil data on Proto II have demonstrated that electromagnetic energy can be efficiently converted into foil kinetic energy with the output increasing as the square of the foil current. Our experiments have reached 60 kJ at 5 MA with the foil imploding in 80 ns and stagneting in 10 ns. One-TW proton diodes have delivered approx. 2 TW/cm/sup 2/ to 3-mm-diam targets using ballistic focusing that is limited by beam divergences of typically 20 mrad. The intrinsic divergence is induced by instabilities in the electron-ion flow, nonuniformities in the anode plasma, or a combination of these effects. Further increases in intensity can be achieved with increases in voltage and ion mass, as well as with beam bunching.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6697340
- Report Number(s):
- SAND-82-2028C; CONF-821089-1; ON: DE83002186
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
700208* -- Fusion Power Plant Technology-- Inertial Confinement Technology
ACCELERATORS
BEAMS
CONFINEMENT
DIODE TUBES
ELECTRON TUBES
I-BEAM TYPE REACTORS
INERTIAL CONFINEMENT
ION BEAM TARGETS
ION BEAMS
NUCLEON BEAMS
PARTICLE BEAM FUSION ACCELERATOR
PARTICLE BEAMS
PLASMA CONFINEMENT
PROTON BEAMS
RESEARCH PROGRAMS
TARGETS
THERMONUCLEAR REACTORS