2025.4.25

Takizawa-san’s paper is published in PRR journal.

Takizawa-san’s paper has been published in Physical Review Research.

This study reports an improvement in plasma heating efficiency by relativistic electron beams (REBs) for fast ignition inertial fusion. By employing a high-contrast laser and a cone-attached target, REBs are more effectively collimated and directed into the compressed core. The high-contrast laser minimizes pre-plasma formation, enhancing beam transport. This configuration nearly doubles the plasma heating efficiency compared to conventional conditions. The results demonstrate a promising strategy to enhance energy coupling from laser to core plasma, contributing to the practical realization of fast ignition and the broader goal of achieving clean and sustainable fusion energy.