Fig. 2 (IMAGE)
Caption
Concept of Micronozzle Acceleration (MNA).
The MNA (Micro-Nozzle Acceleration) target employs a micronozzle housing a solid hydrogen rod (H-rod), precisely placed near the nozzle neck to maximize proton yield. Acting as a "power lens," the micronozzle focuses the incident laser energy onto the H-rod, enabling efficient and localized energy deposition. This configuration significantly boosts proton acceleration near the nozzle exit, outperforming setups lacking the nozzle structure.
Credit
2025, Masakatsu Murakami, et al., Generation of giga-electron-volt proton beams by micronozzle acceleration, Scientific Reports
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License
CC BY-NC-ND