研究目的
Investigating the generation of a high-repetition rate laser-driven proton source from a continuously operating cryogenic hydrogen cluster target.
研究成果
The study successfully demonstrated a highly robust proton source capable of operating at high repetition rates, with proton energies tunable by adjusting laser and cluster parameters. The Coulomb explosion mechanism was confirmed as the primary acceleration process, supported by PIC simulations. Future modifications to the target could enable higher proton energies, expanding the potential applications of this proton source.
研究不足
The study is limited by the maximum cluster size achievable with the current target setup, which affects the maximum proton energy that can be obtained. Additionally, the laser system's repetition rate and energy fluctuations could influence the stability of the proton source.
1：Experimental Design and Method Selection:
The experiment utilized a high-intensity laser to irradiate a cryogenic hydrogen cluster target, focusing on the Coulomb-explosion mechanism for proton acceleration.
2：Sample Selection and Data Sources:
The target consisted of hydrogen clusters formed by adiabatic expansion of hydrogen gas through a de-Laval nozzle.
3：List of Experimental Equipment and Materials:
The ARCTURUS laser system, cryogenic hydrogen cluster target, Thomson-parabola spectrometers, and micro-channel-plate detectors were used.
4：Experimental Procedures and Operational Workflow:
The laser was focused onto the hydrogen cluster target, and the resulting proton beams were analyzed using Thomson-parabola spectrometers.
5：Data Analysis Methods:
Proton energy spectra were analyzed to determine the stability and energy distribution of the proton source.
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