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  • Articles: DFG German National Licenses  (2)
  • 07.80.+x  (1)
  • 29.25C  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Applied physics 44 (1987), S. 233-238 
    ISSN: 1432-0630
    Keywords: 79.70.+q ; 41.80.Gg ; 07.80.+x
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Energy distributions of mass-separated ions emitted from liquid-metal-ion sources using Ni-B-Si and Pt-P-Sb alloys have been measured in a dynamic range of four orders of magnitude. Low-energy tails are observed on the energy-per-unit ion charge for singly-charged ions, in contrast with doubly-charged ions. The higher ion-emission current brings about longer tails. Rather flat tails are also observed on the high-energy side for M+ ion species in the Pt-P-Sb alloy LMIS, where the M2+ intensity is larger than the M+ one. The origins of these energy tails are discussed.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Applied physics 54 (1992), S. 115-119 
    ISSN: 1432-0630
    Keywords: 29.25C ; 79.70 ; 41.80
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract This paper determines the optimum range of total ion current for a cesium liquid metal ion source for use as a focused ion beam (FIB). This range is determined from a figure of merit calculated from measurements of the angular intensity and energy spread of emitted ions. Judging from both the figure of merit and the tail of the energy distribution curves, the total emission current should be set near 1 μA for a cesium FIB with a high current density. Assuming that both Cs- and Ga-FIBs have the same diameter, the relative current density of a Cs-FIB is expected to be approximately 80% that of a Ga-FIB.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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