Particle beam fusion progress report for 1989
- ed.; Sandia National Labs., Albuquerque, NM (United States). Pulsed Power Sciences Center
This report summarizes the progress on the pulsed power approach to inertial confinement fusion. In 1989, the authors achieved a proton focal intensity of 5 TW/cm{sup 2} on PBFA-II in a 15-cm-radius applied magnetic-field (applied-B) ion diode. This is an improvement by a factor of 4 compared to previous PBFA-II experiments. They completed development of the three-dimensional (3-D), electromagnetic, particle-in-cell code QUICKSILVER and obtained the first 3-D simulations of an applied-B ion diode. The simulations, together with analytic theory, suggest that control of electromagnetic instabilities could reduce ion divergence. In experiments using a lithium fluoride source, they delivered 26 kJ of lithium energy to the diode axis. Rutherford-scattered ion diagnostics have been developed and tested using a conical foil located inside the diode. They can now obtain energy density profiles by using range filters and recording ion images on nuclear track recording film. Timing uncertainties in power flow experiments on PBFA-II have been reduced by a factor of 5. They are investigating three plasma opening switches that use magnetic fields to control and confine the injected plasma. These new switches provide better power flow than the standard plasma erosion switch. Advanced pulsed-power fusion drivers will require extraction-geometry applied-B ion diodes. During this reporting period, progress was made in evaluating the generation, transport, and focus of multiple ion beams in an extraction geometry and in assessing the probable damage to a target chamber first wall.
- Research Organization:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 10185798
- Report Number(s):
- SAND-91-1556; ON: DE95000711; BR: GB0103012; TRN: 94:020351
- Resource Relation:
- Other Information: PBD: Aug 1994
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
INERTIAL CONFINEMENT
RESEARCH PROGRAMS
PARTICLE BEAM FUSION ACCELERATOR
PROGRESS REPORT
PLASMA DIAGNOSTICS
Q CODES
D CODES
ION BEAM FUSION REACTORS
THERMIONIC DIODES
LITHIUM IONS
ION BEAM TARGETS
DATA ANALYSIS
BEAM TRANSPORT
BEAM EXTRACTION
700411
INERTIAL CONFINEMENT DEVICES