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Fused Filament Fabrication (FFF) of Metal-Ceramic Components

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Fusion using fast heating of a compactly imploded CD core.

Y Kitagawa¹, Y Mori, O Komeda

¹The Graduate School for the Creation of New Photonics Industries, Kurematsuchou, 1955-1 Nishi-ku, Hamamatsu 431-1202 Japan. kitagawa@gpi.ac.jp

Physical Review Letters

|May 17, 2012

Summary

This study demonstrates a compact laser system for fast core heating experiments. The system successfully generated hot electrons, producing X-ray radiation and thermal neutrons.

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Area of Science:

Physics
Plasma Physics
Laser-driven fusion

Background:

Achieving high energy densities in matter is crucial for fusion energy research.
Compact and efficient laser systems are needed for advanced plasma heating experiments.

Purpose of the Study:

To describe a compact fast core heating experiment using a novel laser setup.
To investigate the production of hot electrons and subsequent radiation from laser-heated targets.

Main Methods:

Utilized a 4-J, 0.4-ns pulsed laser system (HAMA) for target illumination.
Employed counter-illuminating laser beams on polystyrene foils for implosion.
Used compressed 110 fs laser pulses for fast core heating.

Main Results:

Generated hot electrons from the fast heating pulses.
Observed X-ray radiations exceeding 20 eV.
Produced approximately 10(3) thermal neutrons from the heated core.

Conclusions:

The compact laser system is effective for fast core heating experiments.
The experiment successfully generated key signatures of energetic processes, including X-ray emission and neutron production.