Screens versus microarrays for ruggedized retarding potential analyzers

An array of highly miniaturized electrostatic lenses is shown to be a viable replacement for meshes or screens in a retarding potential analyzer (RPA) where mechanical ruggedness or the ability to intercept large currents of energetic particles is desirable. Data from a prototype device are presente...

Full description

Saved in:
Bibliographic Details
Published in:Review of scientific instruments 2015-09, Vol.86 (9), p.093302-093302
Main Authors: Enloe, C L, Amatucci, W E, McHarg, M G, Balthazor, R L
Format: Article
Language:English
Subjects:
Analyzers
Computer simulation
Configurations
Energetic particles
Energy resolution
Retarding
Ruggedness
Scientific apparatus & instruments
Screens
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:An array of highly miniaturized electrostatic lenses is shown to be a viable replacement for meshes or screens in a retarding potential analyzer (RPA) where mechanical ruggedness or the ability to intercept large currents of energetic particles is desirable. Data from a prototype device are presented cross-calibrated with a traditional planar RPA indicating how the so-called microarray configuration avoids energy-dependent transparency (either reduced or enhanced) associated with meshes or screens while providing accurate energy analysis with reasonable energy resolution. In contrast, another ruggedized configuration employing a screen is presented, showing the severity of energy-dependent enhanced transparency, verified by numerical simulation.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.4929532