Emission of core-excited autoionizing sodium atoms from NaCl induced by electron bombardment |
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Authors: | Leszek Markowski |
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Affiliation: | Institute of Experimental Physics, University of Wroc?aw, pl. Maxa Borna 9, Wroc?aw 50-204, Poland |
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Abstract: | In the time-of-flight spectrum of positive ions produced by electron bombardment of NaCl surface a delayed signal of Na+ is detected. This observation is attributed to production of core-excited autoionizing metastable Na** atoms which have their characteristic lifetimes in the 100 ns range. Moreover, it is noticed that the populations of the various metastable Na** states depend on the NaCl layer thickness. The lifetimes of some quartet metastable Na** states have been determined as well. |
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Keywords: | 68 35 Ja 68 43 Rs 79 20 La |
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