Dual Ion Species Plasma Expansion from Isotopically Layered Cryogenic Targets
| Autor: | S. Astbury, S. R. Mirfayzi, Dean Rusby, Liu Hao, M. Tolley, Christopher Spindloe, R. J. Clarke, F. Wagner, Paul McKenna, Marco Borghesi, Guoqian Liao, David Carroll, Markus Roth, M. King, Aaron Alejo, Cristina Hernandez-Gomez, M. P. Selwood, Satyabrata Kar, Egle Zemaityte, R. J. Dance, S. Hook, I. Y. Arteaga, Graeme Scott, A. Higginson, David Neely, Yun-Hui Li |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
QC717
Materials science Ion beam Proton Nuclear Theory General Physics and Astronomy Plasma Physics and Astronomy(all) 01 natural sciences 010305 fluids & plasmas Ion Deuterium Physics::Plasma Physics 0103 physical sciences Physics::Accelerator Physics ddc:530 Particle-in-cell Atomic physics 010306 general physics Nucleon Nuclear Experiment Beam (structure) |
| Zdroj: | Scott, G G, Carroll, D C, Astbury, S, Clarke, R J, Hernandez-Gomez, C, King, M, Alejo, A, Arteaga, I Y, Dance, R J, Higginson, A, Hook, S, Liao, G, Liu, H, Mirfayzi, S R, Rusby, D R, Selwood, M P, Spindloe, C, Tolley, M K, Wagner, F, Zemaityte, E, Borghesi, M, Kar, S, Li, Y, Roth, M, McKenna, P & Neely, D 2018, ' Dual Ion Species Plasma Expansion from Isotopically Layered Cryogenic Targets ', Physical Review Letters, vol. 120, no. 20, 204801 . https://doi.org/10.1103/PhysRevLett.120.204801 BASE-Bielefeld Academic Search Engine Physical review letters 120(20), 204801 (2018). doi:10.1103/PhysRevLett.120.204801 |
| ISSN: | 1079-7114 |
| Popis: | Physical review letters 120(20), 204801 (2018). doi:10.1103/PhysRevLett.120.204801 A dual ion species plasma expansion scheme from a novel target structure is introduced, in which a nanometer--thick layer of pure deuterium exists as a buffer species at the target--vacuum interface of a hydrogen plasma. Modeling shows that by controlling the deuterium layer thickness, a composite H+ /D+ ion beam can be produced by target normal sheath acceleration (TNSA), with an adjustable ratio of ion densities, as high energy proton acceleration is suppressed by the acceleration of a spectrally peaked deuteron beam. Particle in cell modeling shows that a (4.3 +/- 0.7) MeV per nucleon deuteron beam is accelerated, in a directional cone of half angle 9 degrees. Experimentally, this was investigated using state of the art cryogenic targetry and a spectrally peaked deuteron beam of (3.4 +/- 0.7) MeV per nucleon was measured in a cone of half angle 7 degrees-9 degrees, while maintaining a significant TNSA proton component. Published by APS, College Park, Md. |
| Databáze: | OpenAIRE |
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