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Title: The roles of electronic and nuclear stopping in the desorption valine negative molecular ions

Conference ·
OSTI ID:6590392

The yield of valine negative molecular ions has been measured as a function of Xe/sup +/, Kr/sup +/, and Ar/sup +/ primary ion velocity. The electronic and nuclear stopping powers are comparable in magnitude and opposite in slope in the experimental velocity region. The yield data are explained in terms of electronic stopping power alone, with no contribution from nuclear stopping power within the experimental error. Low molecular weight atomic species are found to be best described by a nuclear stopping power related process. 18 refs., 3 figs.

Research Organization:
Argonne National Lab., IL (USA)
DOE Contract Number:
W-31109-ENG-38
OSTI ID:
6590392
Report Number(s):
CONF-8809134-3; ON: DE89003943
Resource Relation:
Conference: 2. international workshop on MeV and KeV ion and cluster interactions with surfaces and materials, Orsay, France, 5 Sep 1988; Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English