Energy and angular distributions of backscattered electrons from the collision of 8 − keV electrons with a thick tungsten target

The energy and angular distributions of backscattered electrons produced under impact of 8.0-keV electrons with a thick tungsten target are measured. The energy range of backscattered electrons is considered between 70 and 1700 eV. The angle of incidence {alpha} and the takeoff angle {theta} are cho...

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Veröffentlicht in:	Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2004-11, Vol.70 (5), Article 052901
Hauptverfasser:	Yadav, R. K., Shanker, R.
Format:	Artikel
Sprache:	eng
Schlagworte:	ANGULAR DISTRIBUTION ATOMIC AND MOLECULAR PHYSICS AUGER ELECTRON SPECTROSCOPY BACKSCATTERING ELECTRON-ATOM COLLISIONS ELECTRONS ENERGY SPECTRA EV RANGE INCIDENCE ANGLE KEV RANGE SURFACES TUNGSTEN
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container_title	Physical review. A, Atomic, molecular, and optical physics
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creator	Yadav, R. K. Shanker, R.
description	The energy and angular distributions of backscattered electrons produced under impact of 8.0-keV electrons with a thick tungsten target are measured. The energy range of backscattered electrons is considered between 70 and 1700 eV. The angle of incidence {alpha} and the takeoff angle {theta} are chosen to have values {alpha}=0 deg., 10 deg., and 20 deg. and {theta}=110 deg., 120 deg., and 130 deg., respectively. The energy distribution function exhibits two sharp peaks, which are found to appear at 216 and 548 eV. They are identified as Auger peaks of tungsten arising due to electron transitions 4d-6s6p and 4s-6s6p, respectively. The measured energy spectra are compared with two different theoretical models. The theoretical predictions are found to yield a good agreement with the experiment in the considered energy range of the backscattered electrons.
doi_str_mv	10.1103/PhysRevA.70.052901
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A, Atomic, molecular, and optical physics</title><description>The energy and angular distributions of backscattered electrons produced under impact of 8.0-keV electrons with a thick tungsten target are measured. The energy range of backscattered electrons is considered between 70 and 1700 eV. The angle of incidence {alpha} and the takeoff angle {theta} are chosen to have values {alpha}=0 deg., 10 deg., and 20 deg. and {theta}=110 deg., 120 deg., and 130 deg., respectively. The energy distribution function exhibits two sharp peaks, which are found to appear at 216 and 548 eV. They are identified as Auger peaks of tungsten arising due to electron transitions 4d-6s6p and 4s-6s6p, respectively. The measured energy spectra are compared with two different theoretical models. 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The angle of incidence {alpha} and the takeoff angle {theta} are chosen to have values {alpha}=0 deg., 10 deg., and 20 deg. and {theta}=110 deg., 120 deg., and 130 deg., respectively. The energy distribution function exhibits two sharp peaks, which are found to appear at 216 and 548 eV. They are identified as Auger peaks of tungsten arising due to electron transitions 4d-6s6p and 4s-6s6p, respectively. The measured energy spectra are compared with two different theoretical models. The theoretical predictions are found to yield a good agreement with the experiment in the considered energy range of the backscattered electrons.</abstract><cop>United States</cop><doi>10.1103/PhysRevA.70.052901</doi></addata></record>
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subjects	ANGULAR DISTRIBUTION ATOMIC AND MOLECULAR PHYSICS AUGER ELECTRON SPECTROSCOPY BACKSCATTERING ELECTRON-ATOM COLLISIONS ELECTRONS ENERGY SPECTRA EV RANGE INCIDENCE ANGLE KEV RANGE SURFACES TUNGSTEN
title	Energy and angular distributions of backscattered electrons from the collision of 8 − keV electrons with a thick tungsten target
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