electron spin resonance


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electron spin resonance

n. Abbr. ESR
A spectroscopic technique, similar to nuclear magnetic resonance, used to detect atoms having orbitals containing unpaired electrons, as found in free radicals. The molecules are exposed to high-frequency microwave radiation, causing the electrons in unpaired orbitals to resonate between the two available spin states of that orbital and to release distinct patterns of radiation. Also called electron paramagnetic resonance.

electron spin resonance

n
(General Physics) a technique for investigating paramagnetic substances by subjecting them to high-frequency radiation in a strong magnetic field. Changes in the spin of unpaired electrons cause radiation to be absorbed at certain frequencies. Abbreviation: ESR See also nuclear magnetic resonance
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Noun1.electron spin resonance - microwave spectroscopy in which there is resonant absorption of radiation by a paramagnet
microwave spectroscopy - the use of spectroscopy to study atomic or molecular resonances in the microwave spectrum
References in periodicals archive ?
Presentamos excusas a nuestros lectores y al antropOlogo Javier AndrEs Sandoval Andrade puesto que en el Vol 15 No 2 del 2011 de la revista Earth Science research Journal (ESRJ) se publico el articulo titulado "Quaternary dating by electron spin resonance (ESR) applied to human tooth enamel" en el cual no se hace un correcto pie de pagina de la figura 1, ya que no es tomada de (Groot, 1992) como reza la misma, sino que es tomada de la tesis de pregrado titulada DATACION DE RESTOS HUMANOS PREHISPANICOS A TRAVES DE ESMALTE DENTAL USANDO RESONANCIA PARAMAGNETICA ELECTRONICA (EPR) (2010).
The main interest of electron spin resonance lies in the study of free radicals having unpaired electrons.
4] Nonstandard abbreviations: ESR, electron spin resonance spectroscopy; DR, discriminant variable.
We will polarize lanthanum nuclear spins by using a dynamic nuclear polarization upon a paramagnetic electron spin resonance (ESR) in a single crystal of a lanthanum compound.
The particles were removed by centrifugation, and the solution was analyzed in a capillary column by electron spin resonance (ESR) spectroscopy (Bruker ESP300 ESR spectrometer; Bruker, Ettlinger, Germany).
Electron paramagnetic resonance (EPR) spectroscopy, which is also known as electron spin resonance, exploits the spin of unpaired electrons in paramagnetic materials.
Scientists will use electron spin resonance spectroscopy to study the effect of processing conditions and improvers on soluble protein mobility in situ in doughs.
INFLUENCE OF MINERALOGY AND GRAIN SIZE ON THE ELECTRON SPIN RESONANCE SIGNAL OF LOESS.
MAFF scientists have published the protocols for four fully-validated tests: detection of irradiated herbs and spices using thermoluminescense technology; detection of irradiated bone-containing meat using electron spin resonance spectroscopy; detection of irradiated food containing fat by using 2-alkylcyclobutanone markers; and detection of irradiated poultry meat using the Limulus Amoebocyte Lysate test in conjunction with a gram-negative bacterial count.
The current research used three dating methods--uranium series, electron spin resonance and optically stimulated luminescence--to establish that the burial of this man took place between 56,000 and 68,000 years ago.
To make the measurements, the team used an electron spin resonance spectrometer that gives highly precise results.

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