A comprehensive diagnostic system of ultra-thin liquid sheet targets

Abstract

To meet the demands of laser ion acceleration at a high repetition rate, we have developed a comprehensive diagnostic system for real-time and in-situ monitoring of liquid sheet targets (LST) generated by the collision of two liquid jets. The spatially resolved rapid characterizations of a LST's thickness, flatness, tilt angle and position are fulfilled by different subsystems with high accuracy. With the help of the diagnostic system, we reveal the dependence of thickness distribution on collision parameters and the determinants of LSTs' flatness and tilt angle, which are essential for applications of laser-driven ion acceleration and others.

Laser-accelerated MeV-scale collimated electron bunch from a near-critical plasma of a liquid jet target

“…It has been demonstrated that such targets may be efficiently utilized for generation of MeV electrons [14][15][16], x-rays [17], protons [18]. One should also take into account the dynamics of the jet/droplets, which could be induced by lasers, modulation, or interaction between multiple jets [19][20][21][22][23], allowing target pre-shaping for efficient application in different experiments.…”