Electron optics of spheroid charged particle energy analyzers

Autor:	I. Konishi, N. Kholine, D Cubric
Rok vydání:	2011
Předmět:	Physics Nuclear and High Energy Physics Spectrum analyzer business.industry Resolution (electron density) Steradian Charged particle Optics Transmission (telecommunications) Electron optics business Spectroscopy Instrumentation Energy (signal processing)
Zdroj:	Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 645:234-240
ISSN:	0168-9002
Popis:	A new class of charged particle energy analyzers, spheroid energy analyzers (SEA) that are characterized with very high energy resolution and transmission, is presented. A prototype analyzer was built that has achieved a relative energy resolution of 0.05% at a transmission of 21% out of a 2π steradian. A very high order of focusing of these analyzers is presented via simulation that indicates the existence of 13th order focusing in one of our models. This promises further improvements in energy resolution in future practical analyzer embodiments. A novel geometrical framework is presented, which describes SEA analyzers in general terms within which well known types of analyzers CMA and CHA appear to be only particular examples.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e8aa3a235a0f7f48a3d1992a146738f4 https://doi.org/10.1016/j.nima.2010.12.146 Zobrazit plný text záznamu Full Text from ScienceDirect