Mono-energetic heavy ion acceleration from laser plasma based composite nano-accelerator

Tayyab, M and Bagchi, S and Chakera, J A and Avasthi, D K and Ramis, R and Upadhyay, A and Bhuvanesh, Ramakrishna and Mandal, T and Naik, P A (2018) Mono-energetic heavy ion acceleration from laser plasma based composite nano-accelerator. Physics of Plasmas, 25 (12). ISSN 1070-664X

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High intensity ultrashort pulse driven ion acceleration is an important area of research due to its richness in underlying physics and potential technological applications. A strong impediment towards employing such sources, in practice, lies in the inherent challenge of producing mono-energetic ions with fine energy control. We demonstrate consistent, highly reproducible, charge-independent mono-energetic acceleration of heavy gold ions to sub-MeV energies with a reasonably high flux of 9 × 1010 ions per shot from the gold-carbon nano-composite target irradiated at moderate laser intensities of 1018–1019 W/cm2. The experimental results establish that the thermal pressure of the expanding hot plasma, instead of the “hot” electrons, is responsible for the acceleration of the mono-energetic heavy Au ions. Our results pave the way for a simple and new way of producing mono-energetic heavy ions. This may find potential applications in advanced particle accelerators, isochoric heating of matter, surface science, swift heavy ion sources, and basic plasma physics.

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IITH Creators:
IITH CreatorsORCiD
Bhuvanesh, Ramakrishna
Item Type: Article
Subjects: Physics
Divisions: Department of Physics
Depositing User: Team Library
Date Deposited: 10 Dec 2018 05:09
Last Modified: 10 Dec 2018 05:09
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