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Z-Pinch-Driven Fast Ignition Fusion
- Source :
- Fusion Science and Technology. 49:384-398
- Publication Year :
- 2006
- Publisher :
- Informa UK Limited, 2006.
-
Abstract
- Fast ignition using pulsed-power drivers combines the efficient production of X-rays to drive fusion fuel assembly with precise ultraintense laser pulses for fuel ignition. Z-pinches convert electrical energy into thermal X-ray energy with high efficiency, which makes them attractive drivers for indirect-drive fuel assembly. Currently, experiments use the Z-pinch vacuum hohlraum, in which the Z-pinch heats a hohlraum that reemits thermal X-rays to drive the capsule. Surface-guided hemispherical capsule implosion experiments in Z-pinch vacuum hohlraums are in progress to study energetics, symmetry control, and pulse shaping. Simulations including radiation asymmetry and glide-plane physics have been performed to optimize the imploded fuel. Higher density capsule implosions at a given driver energy may be possible using the Z-pinch dynamic hohlraum, in which the Z-pinch plasma itself creates the hohlraum. Capsule and hohlraum designs for both vacuum and dynamic hohlraum sources are in progress, including liquid cryogenic fuel capsules. Analytic models for D-Tfuel heating and burn have been developed for scoping purposes and breakeven scaling. Implicit particle-in-cell modeling of the interaction of laser-produced energetic particles with calculated fuel configurations demonstrates that details of the entire fuel/glide material density profile significantly affect the calculated energy deposition and thus the ignition requirements.
- Subjects :
- Nuclear and High Energy Physics
Materials science
020209 energy
Nuclear engineering
Implosion
02 engineering and technology
01 natural sciences
010305 fluids & plasmas
law.invention
Physics::Fluid Dynamics
Nuclear physics
Physics::Plasma Physics
Hohlraum
law
0103 physical sciences
Thermal
0202 electrical engineering, electronic engineering, information engineering
General Materials Science
Cryogenic fuel
Civil and Structural Engineering
Mechanical Engineering
Electric potential energy
Plasma
Ignition system
Nuclear Energy and Engineering
Z-pinch
Subjects
Details
- ISSN :
- 19437641 and 15361055
- Volume :
- 49
- Database :
- OpenAIRE
- Journal :
- Fusion Science and Technology
- Accession number :
- edsair.doi...........7b1af3809111114142c5d3c1d808edc7