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  • Articles: DFG German National Licenses  (2)
  • 1990-1994  (2)
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  • Articles: DFG German National Licenses  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Plasma lens fine focusing of heavy-ion beams (1992)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 60 (1992), S. 2475-2477 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The fine-focusing capability of a current-carrying, "active" plasma lens has been demonstracted for the first time. A cylindrically symmetric argon discharge plasma pulsed with an oscillating current of over 20 kA in amplitude served as a current conducting medium. With this plasma lens has been demonstrated for the first time. A cylindrically symmetric argon discharge plasma pulsed with an oscillating current of over 20 kA in amplitude served as a current conducting medium. With this plasma lens the diameter of an incident 2.2-GeV gold ion beam from the linear accelerator UNILAC at GSI-Darmstadt was focused from initially 10 to about 0.25 mm, at a focal length of only 140 mm. The gradient of the azimuthal magnetic field exceeded 120 T/m. The striking features of this first-order and strong-focusing plasma lens favor its use as a precise high-gradient focusing device for high-energy charged particles.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.107443
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Schlieren diagnostics of the plasma focus using a mode-locked dye laser (1991)
    Springer
    Applied physics 53 (1991), S. 92-96 
    Details
    ISSN: 1432-0649
    Keywords: 42.80 Nw ; 52.55Ez ; 42.60Eb
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract By means of schlieren techniques the discharge characteristics of a 1 kJ plasma focus device were investigated. Different inner electrodes were used with diameters ranging from 4 mm to 10 mm and the working gases were hydrogen and neon. A spatial resolution in the μm region and a temporal resolution in the ps region could be achieved using a mode-locked dye laser as schlieren light source. During the run-down and collapse phase of the discharge the spatially and temporally resolved electron density was determined from the schlieren pictures by means of numerical simultations of the beam deflection by the plasma. During the focus phase the temporal development of the plasma could be observed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00325537
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    Paper (German National Licenses)
    Fulltext
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