INVESTIGADORES
MORENO Mario Sergio Jesus
artículos
Título:
Electron irradiation damage in SnO
Autor/es:
M.S.MORENO; R.F.EGERTON; L.C.OTERO-DIAZ
Revista:
PHILOSOPHICAL MAGAZINE LETTERS
Editorial:
TAYLOR & FRANCIS LTD
Referencias:
Año: 2003 vol. 83 p. 591 - 597
ISSN:
0950-0839
Resumen:
In a study of radiation effects in SnO we have found that electron-beamdamage is observable from changes in a high-resolution electron microscopyimage or electron diffraction pattern. The early stage of the damage is notaccompanied by a change in composition or a loss of crystallinity. The doserequired for this damage (about 600Ccm-2) is approximately independent ofelectron energy (between 100 and 400 keV) and specimen temperature (between100 and 300 K). The damage is believed to start with displacement of oxygenatoms from their lattice position through a radiolytic mechanism with anefficiency of approximately 10-4.
