Small and giant lasers collaborate to fight cancer

Gediminas Raciukaitis; Migle Mackeviciute; Juozas Dudutis; Valdemar Stankevic; Mehdi Abedi-Varaki; Valdas Girdauskas; Paulius Gecys; Vidmantas Tomkus

doi:10.1117/12.3014217

11 April 2024 Small and giant lasers collaborate to fight cancer

Gediminas Raciukaitis, Migle Mackeviciute, Juozas Dudutis, Valdemar Stankevic, Mehdi Abedi-Varaki, Valdas Girdauskas, Paulius Gecys, Vidmantas Tomkus

Author Affiliations +

Proceedings Volume PC12939, High-Power Laser Ablation VIII; PC129391L (2024) https://doi.org/10.1117/12.3014217
Event: SPIE High-Power Laser Ablation, 2024, Santa Fe, New Mexico, United States

Abstract

Laser wakefield accelerators can be an alternative to huge linear accelerators and cyclotrons. Electron bunches with 150-200 MeV energies are needed for Very High Energy Electron radiotherapy. Injection of electrons and their acceleration take place when the focused laser beam interacts with a gas plasma target. We utilise a combined laser micromachining technology with short-pulse and ultra-short-pulse lasers to manufacture complex gas nozzles in fused silica. TW-class lasers are able to accelerate electrons to high energies in a very short distance. A stable operation with electron energy around 3 MeV was demonstrated at a 1 kHz repetition rate. Flexibility in 3D carving within fused silica with lasers allows tailoring plasma targets to particular beams of ultra-high intensity lasers and achieving high energy of accelerated electrons with low energy spread and divergence. Electron energy above 100 MeV could be achieved using new kHz-class OPCPA lasers operating at pulse energy >50 mJ.

Conference Presentation

Citation Download Citation

Gediminas Raciukaitis, Migle Mackeviciute, Juozas Dudutis, Valdemar Stankevic, Mehdi Abedi-Varaki, Valdas Girdauskas, Paulius Gecys, and Vidmantas Tomkus "Small and giant lasers collaborate to fight cancer", Proc. SPIE PC12939, High-Power Laser Ablation VIII, PC129391L (11 April 2024); https://doi.org/10.1117/12.3014217

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