One-dimensional and multichannels multi-imaging x-ray streak camera for imploded core plasma of shell-cone target

Area of Science:

• Plasma Physics
• Astrophysics
• Laser-driven Inertial Confinement Fusion

Background:

• Ultrafast diagnostics are crucial for understanding high-energy-density plasma phenomena.
• Previous methods lacked the spatiotemporal resolution to fully characterize complex implosion dynamics.

Purpose of the Study:

• To introduce and validate the one-dimensional and multichannels multi-imaging x-ray streak camera (1D+McMIXS) for shell-cone targets.
• To investigate the plasma dynamics during fast ignition experiments using the 1D+McMIXS.

Main Methods:

• Implementation of the 1D+McMIXS diagnostic system at the Gekko XII laser facility.
• Conducting implosion experiments with shell targets featuring a cone structure.
• Reconstruction of time-resolved 2D x-ray images and mapping of electron temperature.

Main Results:

• The 1D+McMIXS successfully captured detailed structures of the interaction between core plasma and the cone tip.
• Time-resolved 2D x-ray images provided insights into shell trajectory before maximum compression.
• A 2D map of electron temperature evolution was generated, offering new data on plasma conditions.

Conclusions:

• The 1D+McMIXS is a powerful tool for diagnosing ultrafast plasma dynamics in inertial confinement fusion research.
• This diagnostic advances the understanding of shell-cone target implosions and fast ignition physics.
• The observed plasma-cone tip interaction provides critical data for optimizing fusion targets.