photoelectron

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pho·to·e·lec·tron

(fō'tō-ē-lek'tron),
An electron freed by the action of light.

photoelectron

(fō″tō-ē-lĕk′trŏn) [″ + elektron, amber]
An electron that is ejected from its orbit around the nucleus of an atom by interaction with a photon of energy (light, x-radiation, and so on).
References in periodicals archive ?
As expected HfG will give the lowest photoelectrons and this will cause significant contribution to energy resolution.
How are the photoelectron kinetic energy and angular distributions expressed?
X-ray photoelectron spectroscopy is a quantitative analysis tool for measuring surface chemistry.
--Quantitative small spot spectroscopy mode: Acquisition of photoelectron spectra with excellent energy resolution from selected areas smaller than 5 [micro]m diameter is possible using a channeltron-based pulse counting detector with excellent bandwidth.
The first surface analysis technique, X-ray photoelectron spectroscopy, will be detailed in the February 2011 issue of CoatingsTech.
The discrepancy for electrons that backscatter with more than 50 % of their incident energy may be caused by these higher energy electrons having a greater probability of producing at least one photoelectron in a veto detector.
Another reason researchers formerly shunned taking measurements at several takeoff angles has to do with the fact that insulating samples acquire a net charge as photoelectrons leave them.
X-ray photoelectron spectroscopy (XPS, sometimes also referred to as ESCA, electron spectroscopy for chemical analysis) is a broadly applicable surface analysis technique that can detect all elements except hydrogen and helium without the use of standards.
where [theta] is the angle between the major polarization axis and the ejected electron, P is the degree of polarization of the incoming light, [ohm] is the solid angle of collection of the photoelectrons, and [[sigma].sub.v] is the partial cross section for the vibrational-electronic channel corresponding to the photoelectron being detected.
The NIST researchers had earlier prepared simulated spectra, based on a factorial design that consisted mainly of overlapping doublets for carbon is photoelectrons from polymers.
If the specimen is oriented so photoelectrons are detected as they leave the sample normal to the surface, then these electrons sample all three regions with the dominant signal coming from the film structure.