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Thermal-Structural Design for Making a Uniform Solid-Liquid Mixed Deuterium Shell in a Cryogenic Target
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DOI：10.1080/15361055.2026.2629147.png)
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Abstract
En 中文
A cryogenic target filled with a solid-liquid mixed deuterium layer is proposed to resolve the defects in solid monocrystalline deuterium and to serve as a primary substitute for deuterium-tritium cryogenic targets to accelerate the iteration and optimization of physical designs in inertial confinement fusion (ICF) experiments. However, fabricating and maintaining such a uniform deuterium shell until shot presents major challenges, such as achieving sufficiently rapid cooling during crystallization, ensuring fast solid deuterium migration from capsule poles to the equator during maintenance, and minimizing perturbation during cryogenic target system shroud removal immediately before the shot. These challenges are addressed by a novel thermal-mechanical package design, optimizing the arm-sleeve joint and laser entrance hole transmissivity, as well as the thermal shield structures and thermal loads. The designs and improvements are analyzed numerically and verified experimentally to guide the production of viable uniform mixed-phase shells for shot delivery.
Keywords:
Inertial confinement fusion (ICF)
cryogenic target
deuterium
thermal-structural design
Journal
F
IF:
1.2
Papers:
103
Citations:
2.7K
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Cited Papers