DETECTION OF X-RAY-FLUORESCENCE OF LIGHT-ELEMENTS BY ELECTRON COUNTING IN A LOW-PRESSURE GASEOUS ELECTRON MULTIPLIER

Authors
PANSKY A BRESKIN A CHECHIK R MALAMUD G
Citation
A. Pansky et al., DETECTION OF X-RAY-FLUORESCENCE OF LIGHT-ELEMENTS BY ELECTRON COUNTING IN A LOW-PRESSURE GASEOUS ELECTRON MULTIPLIER, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 330(1-2), 1993, pp. 150-157
Citations number
23
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
330
Issue
1-2
Year of publication
1993
Pages
150 - 157
Database
ISI
SICI code
0168-9002(1993)330:1-2<150:DOXOLB>2.0.ZU;2-7
Abstract
Ionization electrons deposited by soft X-rays in a low pressure (10 To rr) gas medium are efficiently counted by a multistage electron multip lier, providing an accurate measurement of the X-ray photon energy. En ergy resolutions of 56-28% FWHM were measured for X-rays of 110-676 eV , recording electrical induced charges or visible photons emitted duri ng the avalanche process. It is demonstrated that a combined analysis of the number of electrons and the electron trail length of an event, provides a powerful and competitive way of resolving ultra-soft X-rays . We present the experimental technique, discuss the advantages and li mitations of the Primary Electron Counter, and suggest ways to improve its performances.