High-energy ion generation

Anatoly M. Maksimchuk; V. Yu. Bychenkov; K. Flippo; H. Krause; Kunioki Mima; Gerard A. Mourou; Koshichi Nemoto; Yasuhiko Sentoku; Donald P. Umstadter; R. Vane

doi:10.1117/12.536776

12 December 2003 High-energy ion generation

Anatoly M. Maksimchuk, V. Yu. Bychenkov, K. Flippo, H. Krause, Kunioki Mima, Gerard A. Mourou, Koshichi Nemoto, Yasuhiko Sentoku, Donald P. Umstadter, R. Vane

Author Affiliations +

Proceedings Volume 5228, ECLIM 2002: 27th European Conference on Laser Interaction with Matter; (2003) https://doi.org/10.1117/12.536776
Event: ECLIM 2002: 27th European conference on Laser Interaction with Matter, 2002, Moscow, Russian Federation

Abstract

We report on multi-MeV ion beam generation from the interaction of a 10 TW, 400 fs, 1.053 μm laser focused onto thin foil targets at intensities ranging from 10¹⁷ to 10¹⁹ W/cm². Ion beam characteristics were studied by changing laser intensity, the preformed plasma scale-length and target material initial conductivity. We manipulated the proton beam divergence by using shaped targets. We observed nuclear transformation induced by high-energy protons and deuterons. A fully relativistic two-dimensional particle-in-cell simulation modeled energetic ion generation. These simulations identify the mechanism for the hot electron generation at the laser-plasma interface. Comparison with experiments sheds light on the dependence of ion-energy on preplasma scale length and solid density plasma thickness as well as relates ion energies for multi-species plasma.

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Anatoly M. Maksimchuk, V. Yu. Bychenkov, K. Flippo, H. Krause, Kunioki Mima, Gerard A. Mourou, Koshichi Nemoto, Yasuhiko Sentoku, Donald P. Umstadter, and R. Vane "High-energy ion generation", Proc. SPIE 5228, ECLIM 2002: 27th European Conference on Laser Interaction with Matter, (12 December 2003); https://doi.org/10.1117/12.536776

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