Multicharged Ion Generation in Plasma Confined in a Cusp Magnetic Trap at Quasigasdynamic Regime
- Institute of Applied Physics, Nizhny Novgorod (Russian Federation)
Modern way of ECR multicharged ion sources development is connected with increasing of microwave frequency up to tens of GHz. Millimeter wave gyrotrons are used now in several laboratories. Traditional mirror magnetic traps with min B configuration for suppressing of MHD instabilities became too expensive because very strong magnetic fields are required. So prospection of axisymmetric plasma trap with MHD stabilization is quite relevant subject of modern plasma physics. The simplest trap of such kind is cusp one. The zero level of magnetic field in the center of the trap doesn't allow to achieve a good confinement in classical regime. A gasdynamic regime of plasma confinement was studied. The same regime may be realized in the cusp geometry trap if plasma density is high enough.In present work a theoretical model of quasi-gasdynamic plasma confinement in a cusp trap is developed. The possibilities of multicharged ion generation in a plasma confined in a cusp trap under the conditions of powerful ECR heating by pulsed radiation of a millimeter wavelength gyrotron were investigated numerically. Calculations were made. Confinement time was estimated with using of approach developed. The results of experiments with simplest kind of cusp trap have demonstrated good correspondence with theoretical calculations and therefore the adequacy of the developed approach and possibility to build more effective source on this base. Two ways of possible evolution of ECR ion sources based on a cusp magnetic trap are proposed.
- OSTI ID:
- 20630646
- Journal Information:
- AIP Conference Proceedings, Vol. 749, Issue 1; Conference: ECRIS'04: 16. international workshop on ECR ion sources, Berkeley, CA (United States), 26-30 Sep 2004; Other Information: DOI: 10.1063/1.1893378; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
Similar Records
Generation of dense multicharged ion flows from an ECR plasma confined in a quasi-gas-dynamic magnetic cusp trap
Formation of Ion Beam from High Density Plasma of ECR Discharge
Related Subjects
43 PARTICLE ACCELERATORS
AXIAL SYMMETRY
CONFINEMENT TIME
CUSPED GEOMETRIES
ECR HEATING
ECR ION SOURCES
ELECTRON CYCLOTRON-RESONANCE
GEOMETRY
GHZ RANGE
MAGNETIC FIELDS
MAGNETIC MIRRORS
MAGNETOHYDRODYNAMICS
MICROWAVE AMPLIFIERS
MULTICHARGED IONS
PLASMA
PLASMA CONFINEMENT
PLASMA DENSITY
PLASMA INSTABILITY
RF SYSTEMS
STABILIZATION
TRAPS