Temperature dependence of emission spectra of liquid metal alloy ion sources


Temperature dependence of emission spectra of liquid metal alloy ion sources

Bischoff, L.; Ganetsos, T.; Teichert, J.; Mair, G. L. R.

The variation with temperature of the ion mass spectra of a liquid metal alloy ion source (LMAIS) (Au77Ge14Si9) is reported. Analysis of our results suggests the co-existence of two diffrent ion creation mechanisms for the doubly charged atomic ions. Whereas some doubly charged ions are post-ionised from the singly charged state, others are directly field-evaporated. The temperature dependence of the abundance of the ionic clusters emitted by the source has also been investigated.

Keywords: Liquid metal alloy ion source; temperature dependence; surface tension; emission spectra; cluster

  • Nuclear Instruments and Methods in Physics Research B 164-165 (2000) 999 - 1003

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Publ.-Id: 3363