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	Auger electron spectroscopy: Dictionary definition (Site not responding. Last check: 2007-10-15)
		Auger electron spectroscopy is an analytical technique in surface chemistry and materials science.
		Auger electron spectroscopy probes the chemistry of a surface by measuring the energy of electrons emitted from that surface when it is irradiated with electron of energy in the range 2 - 50 keV.
		Auger is pronounced so as to rhyme with "OJ", but with the softer G associated with French pronunciation.
	www.encyclopedian.com /au/Auger-electron-spectroscopy.html (336 words)

	Home Silvia (Site not responding. Last check: 2007-10-15)
		First observed by Pierre V. Auger in the 1920s, the Auger effect is a process where an atom that has been ionized with the emission of a core level electron undergoes a transition in which a second electron, the Auger electron, is emitted.
		Auger electron spectroscopy, AES, is a surface analytical technique that utilizes the Auger effect to measure the elemental composition of surfaces.
		The energy of the Auger electron, specific to the atom from which it originated, is measured and the quantity of Auger electrons is proportional to the concentration of the atoms on the surface.
	www.rzuser.uni-heidelberg.de /~sudrea/work4.html (153 words)

	Auger electron spectroscopy (Site not responding. Last check: 2007-10-15)
		Auger electron spectroscopy is an analytical technique in surface chemistry and materialsscience.
		Auger electron spectroscopy probes the chemistry of a surface by measuring the energy of electrons emitted from that surfacewhen it is irradiated with electron of energy in the range 2 - 50 keV.
		This core statecan be filled by an outer shell electron from the same atom, in which case the electron moves to a lower energy state, and theenergy associated with the transition is the difference in orbital energies.
	www.therfcc.org /RFCC/auger-electron-spectroscopy-39223.html (251 words)

	Auger effect -- Encyclopædia Britannica
		More results on "Auger effect" when you join.
		Some sound effects correspond to the action in the visual image: as waves are seen breaking on the shore, the synchronous sound of breaking waves is heard.
		Factsheet on the effects of ozone depletion on humans, plants, and marine life, with the increase in the ultraviolet rays that are emitted from the Sun.
	www.britannica.com /eb/article?tocId=9011236 (899 words)

	Patent 4205226: Auger electron spectroscopy
		In the art of Auger electron spectroscopy, instruments making use of cylindrical mirror analyzers are known which analyze the energy and the energy spectrum of Auger electrons emitted by the sample material by injecting the electrons into a radial electric field produced between a pair of coaxially mounted electrodes held at different electric potentials.
		Auger electrons injected into the radial electric field between the cylindrical electrodes are deflected by the field toward the common axis of the electrodes.
		Auger electrons passing through aperture 23 enter the radial electric field between electrodes 11 and 12 and are deflected by the field toward the axis 2--2 of the analyzer and the instrument.
	www.freepatentsonline.com /4205226.html (3851 words)

	Science Fair Projects - Auger electron spectroscopy
		Though the discovery was made and reported by Meitner in 1923 in the journal Zeitschrift für Physik, two years before Auger discovered the effect, the English speaking scientific community came to attach Auger's name to it, perhaps because of the political climate of Europe at the time, perhaps because of sexism.
		For Auger spectroscopy to be conducted the specimen chamber and spectrometer must be maintained at Ultra High Vacuum (UHV), as any gasses present will both absorb and scatter the very low energy Auger electrons as well as forming a thin 'gas layer' on the surface of the specimen degrading analytical performance.
		Auger is pronounced "O-Jay", but with the softer J associated with French pronunciation.
	www.all-science-fair-projects.com /science_fair_projects_encyclopedia/Auger_electron_spectroscopy (725 words)

	National Synchrotron Light Source
		Scientists can count the Auger electrons ejected as a function of their kinetic energy, called the Auger electron spectrum, which provides information on the correlations between the two holes left in the valence shell by the second and third electrons.
		Auger line shapes can be used to probe electron correlations in the valence band by comparing the measured Auger profiles against the prediction of various theories.
		The importance of correlation effects in core-valence-valence Auger spectra can be quantified by the ratio of the Coulomb repulsion energy to the bandwidth, which, in transition metals, is usually the width of the d bands.
	www.nsls.bnl.gov /newsroom/science/2003/03-Hulbert.htm (620 words)

	AUGER
		Auger Electron Spectroscopy (AES) is an analytical technique that uses a primary electron beam to probe the surface of a solid material.
		The Auger effect is named for its discoverer, Pierre Auger, who observed radiationless relaxation of excited ions in a cloud chamber, during the 1920s.
		Auger electrons are emitted at discrete energies that allow the atom of origin to be identified.
	www.phi.com /genf.asp?ID=281 (215 words)

	AES
		Auger Electron Spectroscopy (Auger spectroscopy or AES) was developed in the late 1960's, deriving its name from the effect first observed by Pierre Auger, a French Physicist, in the mid-1920's.
		It is a surface specific technique utilizing the emission of low energy electrons in the Auger process and is one of the most commonly employed surface analytical techniques for determining the composition of the surface layers of a sample.
		In the Auger process illustrated, the final state is a doubly-ionized atom with core holes in the L1 and L2,3 shells.
	www.jhu.edu /~chem/fairbr/surfacelab/aes.html (1113 words)

	photoelectric effect
		The photoelectric effect commonly is thought of as the ejection of electrons from the surface of a metal plate when light falls on it.
		The photovoltaic effect consists in the generation of an electromotive force as a consequence of the absorption of radiation; that is to say, a current will flow across the junction of two dissimilar materials when light falls upon it.
		Conversely, Auger spectroscopic lines with precisely known energies can be used for the energy calibration of conversion electrons--electrons that are ejected from their shells when a nucleus loses its excitation energy.
	www.britannica.com /nobel/micro/465_57.html (2324 words)

	Pile Info
		The auger is screwed into the soil and penetrates due to the high pull-down force, combined with rotation.
		The top of the auger is equipped with a device, forcing the mandrel to move downward and the auger to move upward, at a controllable pressure.
		The reinforcement cage is locked to the bottom plate during auger extraction; the auger is withdrawn in successive stages.
	www.geoforum.com /info/pileinfo/view.asp?ID=39 (395 words)

	Auger electron spectroscopy Definition / Auger electron spectroscopy Research (Site not responding. Last check: 2007-10-15)
		Auger electron spectroscopy is an analytical technique in surface chemistrySurface chemistry is the study of chemical phenomena that occur at the interface of two phases, usually between a gas and a solid or between a liquid and a solid.
		One important field of surface chemical research is related to surface functionalization, which aims at modifying the chemical composition of a surface by incorporation of selected chemical elements or functional groups....
		Auger electron spectroscopy is a very powerful surface analytical technique that has found applications.
	www.elresearch.com /Auger_electron_spectroscopy (187 words)

	[No title]
		Auger Electron energies are closely related to the corresponding X-ray energy, and most usually are described in X-ray notation.
		The Auger transition rate was solved very early in the history of Quantum Mechanics by Wentzel (1927), who calculated transition matrix elements (Fermi's Golden Rule) between the initial (atomic) and the final (continuum) states based on the Coulomb interaction.
		The line shape of LVV Auger transitions is thought to reflect the self-convolution of the valence band density of states, whereas the UPS spectrum reflects the density of states directly.
	venables.asu.edu /sphy/sect33.doc (2145 words)

	Post Growth Characterization of Nitride Films - Auger Spectroscopy (Site not responding. Last check: 2007-10-15)
		The Auger process is based on the fact that when an impinging electron knocks out a core electron of an atom, the atom may decay to a lower energy state by ejecting another electron to yield a doubly ionized atom.
		More information about the principles and operation of an Auger electron spectroscopy system can be found in the Handbook published by Physical Electronics Industries (Ref. 46), as well as spectra of nearly all elements in the periodic table which are used to identify elements in an unknown sample.
		Auger proofed to be a valuable tool to check for contamination in our growth chamber after growth.
	members.aol.com /RudyHeld/dossier/dos112.htm (418 words)

	R & D: Recent advances improve Auger analysis. (Auger spectroscopy)@ HighBeam Research (Site not responding. Last check: 2007-10-15)
		Smaller beam sizes and numerical analysis methods are increasing the performance and utility of Auger spectroscopy.
		Nearly 60 years ago, the French physicist Pierre Auger discovered that atoms brought to an excited state can undergo a transition to a lower energy state by emitting a bound electron.
		During the past several years, researchers have combined this Auger effect with new analytical capabilities to develop instruments that reveal material characteristics not obtainable any other way.
	www.highbeam.com /library/doc0.asp?DOCID=1G1:13617684&refid=ip_encyclopedia_hf (169 words)

	ELEC 480 - AES (Site not responding. Last check: 2007-10-15)
		In Auger Electron Spectroscopy, an electron gun is used to bombard a sample with a highly focused electron beam of energy between 1 and 10 keV.
		Auger electrons are emitted by a process known as the Auger Effect and they are detected by the electron energy analyser.
		An Auger energy distribution is obtained by measuring the emission rate of Auger electrons at each discrete energy over a given energy range.
	murray.newcastle.edu.au /users/students/2001/c9608081/aes.htm (144 words)

	Auger Electron Spectroscopy
		Auger point analysis and scanning analysis can be performed with a spatial resolution down to 250 nm, while SEM resolution is around 100 nm.
		Auger and X-ray photoelectron spectroscopy give similar information, and the choice should be based on advantages and disadvantages.
		The Auger spot size is much smaller than the XPS and has the capability of identifying fine features on the surface.
	www.ualberta.ca /ACSES/ACSES3/Techniques/aes.htm (576 words)

	[No title] (Site not responding. Last check: 2007-10-15)
		Auger electron spectroscopy can be used for surface chemical analysis in a way very similar to XPS.
		The Auger transitions are labelled ABC for the initial state hole (A) and the two final state holes (B) and (C).
		A KLL Auger transition would be a transition starting from a hole in the 1s level which would be filled up from the 2p level.
	www.ifa.au.dk /~philip/ea04/surflec/node25.html (453 words)

	Forensic SEM/EDX (Site not responding. Last check: 2007-10-15)
		The first type of escaping electrons to be discussed are the low energy electrons known as the Auger effect first observed in 1925 by the French Physicist Pierre-Victor Auger.
		This phenomenon occurs when an electron is released from one of the inner orbiting shells thereby creating two electron vacancies of the residual atom and is repeated as the new vacancies are filled or x-rays are emitted.
		It should be noted that the detection of Auger electrons or specific Auger yield for a particular element decreases with atomic number.
	www.forensicevidence.net /iama/sem-edxtheory.html (2640 words)

	Autoionisation and Auger Effect (Site not responding. Last check: 2007-10-15)
		01 - R. Barrachina and J. Macek: Theory of emission-angle-dependent Auger transitions in ion - atom collisions, Journal of Physics B 22, 2151 (1989).
		04 - I. Samengo and R. Barrachina: Rainbow and glory effects in the autoionization of atoms excited by the impact of heavy ions, Journal of Physics B 29, 4179 (1996).
		08 - R. Barrachina and M. Zitnik: Young's interference effect in the autoionization of atoms colliding with molecules, Journal of Physics B 37 3847 (2004).
	www.ib.edu.ar /staff/barrachina/research/articles/auger.html (226 words)

	Auger Electron Spectroscopy (Site not responding. Last check: 2007-10-15)
		This is called the Auger effect, and the emitted electrons are named Auger electrons.
		The kinetic energy of Auger electrons depends on the source atom, hence the composition of surfaces can be analyzed by measuring their kinetic energies.
		Generally, AES spectrum is shown with the kinetic energies on x-axis and the number of Auger electrons on the y-axis.
	www.phys.ynu.ac.jp /labs/tanaka/eng_theme/eng_docs/koide_e.htm (157 words)

	[C] TERMS & DEFINITIONS IN NUCLEAR CHEMISTRY
		CASCADE, AUGER In the Auger effect, when the emission of an Auger electron leads to the creation of a new vacancy that relaxes by a subsequent Auger effect.
		CERENKOV EFFECT Emission of radiation in the visible and ultraviolet spectrum arising when a charged particle crosses a medium with a velocity greater than that of light in the same medium.
		COMPTON EFFECT The inelastic scattering of a photon by a free or weakly bound electron which afterwards occurs as a free electron.
	www.radiochemistry.org /nomenclature/c.htm (3002 words)

	Spectroscopy - Encyclopedia.WorldSearch (Site not responding. Last check: 2007-10-15)
		The energy available in this de-excitation process is emitted as radiation (fluorescence) or will remove other less-bound electrons from the atom (Auger effect).
		In addition, for a specific atom small frequency (energy) variations occur which are characteristic of the chemical bonding.
		With a suitable apparatus, these characteristic X-ray frequencies or Auger electron energies can be measured.
	encyclopedia.worldsearch.com /spectroscopy.htm (744 words)

	Auger Books (Site not responding. Last check: 2007-10-15)
		Auger electron spectroscopy study of surface segregation in the binary alloys copper - 1 atomic percent indium, copper - 2 atomic percent tin, and iron...
		Title: Auger electron spectroscopy study of surface segregation in the binary alloys copper - 1 atomic percent indium, copper - 2 atomic percent tin, and iron...
		Uses of Auger and x-ray photoelectron spectroscopy in the study of adhesion and friction (SuDoc NAS 1.15:103266)
	php-web-hosting.us /all-about-Auger.php (2728 words)

	Table of contents for Library of Congress control number 96019435
		Auger spectrum of neon following 1s ionization Part B. Experimental Aspects: 1.
		Photon-induced L3-M1M1 Auger decay in magnesium described as one- and two-step processes 4.
		Angular distribution and alignment of L3-M1M1 Auger electrons in magnesium Part C. Polarization Properties: 1.
	www.loc.gov /catdir/toc/cam022/96019435.html (199 words)

	Dictionary of Meaning www.mauspfeil.net (Site not responding. Last check: 2007-10-15)
		This effect was discovered independently by both Lise Meitner and Pierre Victor Auger Pierre Auger in the 1920's.
		Therefore it is more sensitive to the lighter elements, and unlike the competing X-ray fluorescence transition, it can detect elements as light as lithium.
		There you find a list of all editors and the possibility to edit the original text of the article Auger electron spectroscopy.
	www.mauspfeil.net /Auger_electron_spectroscopy.html (629 words)

	Resonant Auger effect (Site not responding. Last check: 2007-10-15)
		The decay spectra in the Raman scattering region show the characteristics of the Auger resonance Raman effect: the resonance Auger peak positions move linearly with the photon energy, and the lifetime broadening does not contribute to the widths of the resonance Auger peaks.
		The two-step model, in which Auger electron emission is considered to be independent from the x-ray absorption process and excitation and deexcitation steps are treated as consecutive and incoherent events.
		In this case the Cini-Sawatzky theory[vi] explain the Auger profile of CVV transitions in terms of the relationship between correlation energy and the single-electron bandwidth.
	www.fi.tartu.ee /labs/rsl/resonant_auger_effect.htm (956 words)

	JAMP-7810 Auger Microprobe
		This allows a fine probe-8 nm in secondary electron imaging (SEI) and 35 nm in Auger electron analysis-to be obtained over a wide current range.
		Auger micro analysis is an analytical technique which combines Auger electron spectroscopy (AES), ion sputtering and secondary electron imaging, for making comprehensive study of 2D and 3D element distribution and geometrical aspects in microareas on solid surfaces.
		AES utilizes the Auger effect discovered by French scientist P. Auger in 1923, namely, a phenomenon in which an excited atom relaxes by emitting an electron with an energy characterstic to an element.
	www.jeol.co.jp /english/products/product/jamp-7810/index.htm (406 words)

	[No title] (Site not responding. Last check: 2007-10-15)
		The hole drilled by the use of auger equipment.
		Also known as Auger transition; internal absorption; internal photoionization.
		] The energy analysis of Auger electrons produced when an excited atom relaxes by a radiationless process after ionization by a high-energy electron, ion, or x-ray beam.
	www.accessscience.com /Dictionary/A/A47/DictA47.html (1941 words)

	5.2 Auger Electron Spectroscopy
		It is a surface specific technique utilising the emission of low energy electrons in the Auger process and is one of the most commonly employed surface analytical techniques for determining the composition of the surface layers of a sample.
		In the Auger process illustrated, the final state is a doubly-ionized atom with core holes in the L
		In general, since the initial ionisation is non-selective and the initial hole may therefore be in various shells, there will be many possible Auger transitions for a given element - some weak, some strong in intensity.
	www.chem.qmw.ac.uk /surfaces/scc/scat5_2.htm (1110 words)

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