On the rate of energy deposition by an ion ring velocity beam
| dc.contributor.author | Omelchenko, Yuri A. | |
| dc.contributor.author | Rudakov, Leonid | |
| dc.contributor.author | Ng, Jonathan | |
| dc.contributor.author | Crabtree, Chris | |
| dc.contributor.author | Ganguli, Gurudas | |
| dc.date.accessioned | 2021-07-28T15:20:48Z | |
| dc.date.available | 2021-07-28T15:20:48Z | |
| dc.date.issued | 2021-05-03 | |
| dc.description.abstract | Using a novel three-dimensional electromagnetic hybrid code, XHYPERS, we simulate the generation of lower hybrid oscillations in a magnetized plasma by a heavy ion beam with a ring-shaped velocity distribution over much longer periods of time compared to previous simulations. We introduce a phenomenological (effective) electron damping to represent the induced scattering of lower-hybrid waves to whistlers and the loss of energy through whistler propagation out of the turbulent region. We demonstrate the effective electron damping to be a crucial factor in increasing the efficiency of energy deposition by an ion ring velocity beam into plasma turbulence and investigate the efficiency of beam energy extraction as a function of the electron damping rate and beam to plasma ion mass ratio. | en |
| dc.description.sponsorship | This work was supported by DARPA. C.C. and G.G. were partially supported by the NRL Base Program. The simulations have been performed on the Pleiades supercomputer at NASA’s Ames Research Center. The authors express their gratitude to LiJen Chen (NASA GSFC) for extending her group’s computational time support to benefit this project. | en |
| dc.description.uri | https://aip.scitation.org/doi/10.1063/5.0046309 | en |
| dc.format.extent | 7 pages | en |
| dc.genre | journal articles | en |
| dc.identifier | doi:10.13016/m275ru-hzpo | |
| dc.identifier.citation | Omelchenko, Yuri A. et al.; On the rate of energy deposition by an ion ring velocity beam; Physics of Plasmas 28, 052102, 3 May, 2021; https://doi.org/10.1063/5.0046309 | en |
| dc.identifier.uri | https://doi.org/10.1063/5.0046309 | |
| dc.identifier.uri | http://hdl.handle.net/11603/22195 | |
| dc.language.iso | en | en |
| dc.publisher | AIP Publishing | en |
| dc.relation.isAvailableAt | The University of Maryland, Baltimore County (UMBC) | |
| dc.relation.ispartof | UMBC Goddard Planetary Heliophysics Institute (GPHI) | |
| dc.rights | Public Domain Mark 1.0 | * |
| dc.rights | This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author. | |
| dc.rights | This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law. | |
| dc.rights.uri | http://creativecommons.org/publicdomain/mark/1.0/ | * |
| dc.title | On the rate of energy deposition by an ion ring velocity beam | en |
| dc.type | Text | en |