What is it about?

Electron beams can be used to deposit additional energy in inertial confinement fusion (ICF) implosions. In doing this, stable, typically low-gain, implosions can be brought to ignition and the gain of these implosions dramatically increased. This work looks at optimising the fraction of energy that can be extracted from electron beams and how this heating scheme can be experimentally tested on current laser facilities.

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Why is it important?

Current ICF target designs are inherently high gain, using high intensity lasers and highly compressed fuel. The reproducibility of such implosions is difficult due to instabilities that develop during the implosion. This work presents an alternate approach in which an inherently robust, low instability, implosion scheme is used and the gain augmented separately.

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This page is a summary of: Toward more robust ignition of inertial fusion targets, Physics of Plasmas, February 2023, American Institute of Physics, DOI: 10.1063/5.0120732.
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