Abstract
Dynamics of laser-driven heavy-ion acceleration clarified by ion charge states
Highlights
Understanding and controlling a highly charged, highdensity, and high-temperature extreme plasma produced by high-intensity short laser pulses interacting with solid targets can provide novel insights into high-energy physics, nuclear physics, and others [1]
The photo-stimulated luminescence (PSL) values deposited by ions from different species and different energies differ because PSL values are related to the dose deposited in the imaging plate (IP)
Charged high-energy silver ions were accelerated by a short pulse petawatt class laser interacting with a silver target with optimum thickness (500 nm), with ionization being dominated by electron collisional ionization inside the target, which is heated to over ∼10 keV by high-intensity short laser pulses
Summary
Understanding and controlling a highly charged, highdensity, and high-temperature extreme plasma produced by high-intensity short laser pulses interacting with solid targets can provide novel insights into high-energy physics, nuclear physics, and others [1]. Laser is strongly absorbed, producing copious energetic electrons, which in turn produce extremely strong spacecharge fields at the target surface, called the sheath This allows ultrahigh gradient acceleration of high peak brightness beams of energetic ions, resulting in a compact ion source with a number of appealing uses [2,3,4,5,6,7,8]. The bulk electron temperature in the target reached ∼10 keV, resulting in significant ionization of the silver M-shell and L-shell by collisions These highly charged silver ions could subsequently be extracted by strong sheath fields of ∼40 to 80 TV/m at the target rear, without being shielded by surface contaminants. Ion sources, a key component for next-generation heavy-ion accelerators
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