Realizing Laser-driven Deuteron Acceleration with Low Energy Spread via In-situ D${}_2$O-deposited Target

Abstract

Generation of quasi-monoenergetic ion pulse by laser-driven acceleration is one of the hot topics in laser plasma physics. In this study, we present a new method for the \textit{In-situ} deposition of an ultra-thin D${}_2$O layer on the surface of an aluminum foil target utilizing a spherical D${}_2$O capsule. Employing a 10${}^{19}$ W/cm${}^2$ laser, we achieve the acceleration of 10.8 MeV deuterons with an energy spread of $\Delta$E/E = 4.6% in the most favorable shot. The energy spread depends on the exposure time of the D${}_2$O capsule in the vacuum chamber. This method has the potential to extend its applicability to other ion species.

References in corpus (5)

• Ion acceleration by superintense laser-plasma interaction
• Radiation Pressure Dominate Regime of Relativistic Ion Acceleration
• Radiation Pressure Acceleration of Ion Beams Driven by Circularly Polarized Laser Pulses
• Ion acceleration in multispecies targets driven by intense laser radiation pressure
• Collisionless shock acceleration of narrow energy spread ion beams from mixed species plasmas using 1 $\mu$m lasers