The Image Potential and Ion Trajectories in SIMS.

reportActive / Technical Report | Accession Number: ADA105377 | Open PDF

Abstract:

THE ANGLE AND ENERGY DISTRIBUTIONS OF Ni ions ejected from ion bombarded Ni001c22-CO are shown to be in excellent agreement with classical trajectory calculations for Ni atoms if the calculations are corrected for the presence of an image force. Two important consequences of this observation are that the ionization probability, R, is nearly isotropic and that it is only weakly dependent on particle velocity. These constraints impose severe restrictions on proposed ionization theories. Author

Author(s):
Gibbs, R. A. ; Holland, S. P. ; Foley, K. E. ; Garrison, B. J. ; Winograd, N.
Author Organization(s):
PENNSYLVANIA STATE UNIV UNIVERSITY PARK DEPT OF CHEMISTRY
Descriptive Note:
Technical rept.,
Pagination:
0020

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Contract/Grant Number(s):
N00014-80-C-0491
 Subject Terms
Joint Capability Areas:
JCA_1.2.3_Educating; JCA_1.2.7_Experimentation; JCA_4.6_Engineering
Modernization Areas:
Microelectronics
Communities of Interest:
Weapons Technologies
Descriptor(s):
*SECONDARY, *MASS SPECTROSCOPY, *IMAGES, *ION BOMBARDMENT, COMPUTATIONS, DISTRIBUTION, THEORY, PROBABILITY, ATOMS, SAPPHIRE, SILICON, IONIZATION, POTENTIAL ENERGY, TRAJECTORIES, MEDIUM POWER
Field(s)/Group(s):
Statistics and Probability, Atomic and Molecular Physics and Spectroscopy
Keyword(s):
Image potential, Ion trajectories, Secondary ion mass spectroscopy, WUNR051744
Report Date:
1981 Sep 01