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Two-photon polymerization printed lattices as support structures in multi-shell ICF targets: Platform development and initial assessment

Scheiner, Brett Stanford·Schmitt, Mark J.·Schmidt, Derek William·Goodwin, Lynne Alese·Marshall, Frederic J.
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Abstract

Recent interest in fielding direct drive multi-shell targets on the NIF [K. Molvig et al., Phys. Rev. Lett. 116, 255003 (2016) and S. X. Hu et al., Phys. Rev. E 100, 063204 (2019)] has highlighted the need for a low density structure to support the inner shell(s) and to avoid energy loss in the acceleration and collision process. We have developed a two-shell platform to evaluate the use of low density two-photon polymerization (2PP) printed lattices as a support structure between the shells. Here, 2PP structures are an attractive option because they can be produced at densities as low as 5 mg/cc, which is ideal for multi-shell targets, and their 3D structure can be tailored to the user's needs.

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Scheiner, Brett Stanford, Schmitt, Mark J., Schmidt, Derek William, Goodwin, Lynne Alese, Marshall, Frederic J.. 2020-12-16. Two-photon polymerization printed lattices as support structures in multi-shell ICF targets: Platform development and initial assessment. https://doi.org/10.1063/5.0027820

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