The Physics Issues that Determine Inertial Confinement Fusion Target Gain and Driver Requirements: A Tutorial

 

 

This paper presents a simplified, tutorial approach to determining the gains of inertial confinement fusion ICF targets, via a basic, zero-dimensional ‘‘0-D’’ , energy ‘‘bookkeeping’’ of input parametrized by ICF drivers’ coupling efficiencies to the target, and subsequent hydrodynamic efficiencies of implosion versus output thermonuclear burn efficiency and target fuel mass. Physics issues/constraints such as hydrodynamic instabilities, symmetry and implosion velocity requirements will be discussed for both the direct drive driver impinging directly on the target and indirect drive x-ray implosion within a driver heated hohlraum approaches to ICF. Supplementing the 0-D model with simple models for hohlraum wall energy loss to predict coupling efficiencies and a simple one-dimensional 1-D model of the implosion as a spherical rocket to predict hydrodynamic implosion efficiencies allows gains to be predicted that compare well with the results of complex two-dimensional 2-D radiation hydrodynamic simulations. [via]
http://fire.pppl.gov/PHPRosen.pdf...

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The Physics Issues that Determine Inertial Confinement Fusion Target Gain and Driver Requirements: A Tutorial

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