Artigo de Periódico
Ion trajectories in atom probe field ion microscopy and gas field ion sources
Fecha
1999Registro en:
0022-3727
v. 32, n. 17
Autor
Castilho, Caio Mário Castro de
Castilho, Caio Mário Castro de
Institución
Resumen
Trajectories of positive ions produced in a region close to a structured surface,
modelled by spherical or spheroidal protrusions and kept at a positive electric potential with
respect to a distant screen or detector are calculated. The results are discussed in comparison
with similar practical situations produced by field ionization and field evaporation or
desorption, such as those occurring in gas field ion sources, field ion microscopy and field
desorption spectroscopy.