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MUCIS New is a new generation filament driven ion source designed for production of highly charged gaseous ions (for work with heavy gases such as Kr and Xe). It has a bigger plasma chamber and better cooling compared to MUCIS that allows to operate with higher discharge currents and to achieve a higher mean charge-state of ions in the plasma. A single filament holder is placed on the beam axis and can be equipped with two tungsten filaments.  The confining multi-cusp field is realized by 60 SmCo-magnets (1.8 Tesla) aligned in Halbach geometry (additional protection of magnets against plasma losses). Symmetrical magnet alignment at both ends of the plasma chamber provides magnetic electron repelling.


Plasma generatorDimensions: ø 250 x 255 mm
 Multi-cusp magnetic confinement
 Magnetic electron repeller
 2 x W-filaments
Extraction systemTriode, Multi aperture: 13 x ø 3 mm
 Aspect ratio: 0.5
 Extraction voltage: up to 33 kV
 Post-acceleration: up to 150 kV
Operation parametersArc current: up to 400 A
 Emission current density: up to 180 mA/cm2
 Typical duty cycle: 5 Hz, 1 ms
Working gasH2, D2, He, CH4, Ne, N2, Ar, Kr, Xe
HistoryIn operation at GSI: since 2009
 Developer: GSI, R. Hollinger, F. Heymach


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