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neutralizing plasma. NDCX-II will be periodically refitted with optimized plasma sources, and will serve as a test bed for studying plasma flows along and across magnetic fields. Focusing of intense ion beams in plasmas using magnetic optics: NDCX-II will enable studies of beam focusing onto a small spot in the presence of chromatic aberrations, beam temperature, and imperfect charge neutralization. Novel time-dependent optical elements will be explored. Collective focusing of intense beams using plasma effects: NDCX-II will enable studies of collective focusing processes including the Robertson lens effect and a process wherein electrons are tied to weak, converging magnetic field lines, and so apply focusing forces to an ion beam. Instabilities of intense beams in plasmas: These include electrostatic two-stream instabilities and the multi-species electromagnetic Weibel (filamentation) instability, both associated with beam-plasma interactions. These modes can be diagnosed using spatially distributed sensors with sufficient frequency response, and by measuring their effects on the beam particle phase space.
Barnard, John; Cohen, Ron; Friedman, Alex; Grote, Dave; Lund, Steven; Sharp, Bill et al.Research Opportunities in High Energy Density Laboratory Plasmas on the NDCX-II Facility,
report,
March 23, 2009;
Berkeley, California.
(https://digital.library.unt.edu/ark:/67531/metadc929816/m1/5/:
accessed April 23, 2024),
University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu;
crediting UNT Libraries Government Documents Department.