The optimal construction of an electrostatic quadruplet as focusing microprobe system

Authors
Azbaid, AH Dymnikov, AD Martinez, G
Citation
Ah. Azbaid et al., The optimal construction of an electrostatic quadruplet as focusing microprobe system, NUCL INST B, 158(1-4), 1999, pp. 61-65
Citations number
9
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
ISSN journal
0168583X → ACNP
Volume
158
Issue
1-4
Year of publication
1999
Pages
61 - 65
Database
ISI
SICI code
0168-583X(199909)158:1-4<61:TOCOAE>2.0.ZU;2-E
Abstract
A general analytical and numerical technique for finding high-quality probe -forming systems is proposed and developed. This optimisation procedure inc ludes mathematical and physical modeling based on the matrizant method and on the boundary element method, respectively. The Separated Russian Quadruplet with electrostatic quadrupole lenses consi sting of four copper rods as the microprobe focusing system is numerically simulated. The influence of the rod diameter and the energy spread on the b eam spot size is investigated for different emittances, (C) 1999 Elsevier S cience B.V. All rights reserved.