World's first tabletop GeV proton accelerator can target micro-structures using tiny nozzles and lasers; could replace giant accelerators

https://phys.org/news/2025-06-tabletop-particle-blaster-tiny-nozzles.html

"microtarget with tiny nozzle-like features irradiated... no: flat targets reach energy limits <100 MeV... micronozzle enables sustained, stepwise proton acceleration within powerful quasi-static electric field created inside target... micronozzle (power lens) focuses incident laser energy onto solid hydrogen rod placed near nozzle neck maximizing proton yield... laser-ignition nuclear fusion, proton cancer therapy, probe matter under ultra-strong magnetic fields under extreme astrophysical conditions"