A miniature, all-electrostatic, field emission electron column for surface analytical microscopy

Autor: M. Prutton, R. H. Roberts, S J Bean, I. R. Barkshire, M. M. El Gomati, J Kudjoe
Rok vydání: 1997
Předmět:
Zdroj: Measurement Science and Technology. 8:536-545
ISSN: 1361-6501
0957-0233
Popis: The design, construction and application of a miniature, electrostatic, two-lens field emission column are presented and demonstrated. The column can provide a finely focused beam of electrons with energies ranging from 100 eV to 15 keV, with corresponding beam currents of 5 - 20 nA, onto a sample at a working distance of 10 mm. Edge resolution measurements show that the beam diameter at the sample is (at worst) at 200 eV falling to 120 nm at 5 keV.
Databáze: OpenAIRE