| 释义 |
electron spin resonance
electron spin resonancen. 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 Thesaurus| Noun | 1. | electron spin resonance - microwave spectroscopy in which there is resonant absorption of radiation by a paramagnetelectron paramagnetic resonance, ESRmicrowave spectroscopy - the use of spectroscopy to study atomic or molecular resonances in the microwave spectrum |
electron spin resonance
electron spin resonance[i′lek‚trän ′spin ‚rez·ən·əns] (physics) electron paramagnetic resonance electron spin resonance
e·lec·tron spin res·o·nance (ESR), a spectrometric method, based on measurement of electron spins and magnetic moments, for detecting and estimating free radicals in reactions and in biologic systems. Synonym(s): electron paramagnetic resonanceelectron spin resonance A term used in MRI for the response of electrons to electromagnetic radiation and magnetic fields at discrete frequencies.e·lec·tron spin res·o·nance (ESR) (ĕ-lek'tron spin rez'ŏ-năns) A spectrometric method, based on measurement of electron spins and magnetic moments, for detecting and estimating free radicals in reactions and in biologic systems. electron spin resonance Abbreviation: ESR
A technique used in medical imaging that identifies atoms by their electron spin characteristics.See also: resonancePatient discussion about electron spin resonanceQ. high ESR levels? i had ESR test done after complaining of weakness, repeated upper respiratory infection, fever and weight loss. my ESR rate is extremely high 120 a week ago and today 114. chest x-ray negative, stomach Ultra Sound negative, other test relatively ok.... Any suggestions? More discussions about electron spin resonanceAcronymsSeeelectroslag remeltingelectron spin resonance
Synonyms for electron spin resonancenoun microwave spectroscopy in which there is resonant absorption of radiation by a paramagnetSynonyms- electron paramagnetic resonance
- ESR
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