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full width at half maximum

   Also found in: Medical, Acronyms, Wikipedia 0.01 sec.
full width at half maximum [′fu̇l ‚width at ′haf ′mak·sə·məm]
(physics)
The difference between the energies or frequencies on either side of a spectral line or resonance curve at which the line absorption or emission or the resonant quantity reaches half its maximum intensity. Abbreviated FWHM.
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5 mm full width at half maximum, compared with the 4.
The role of positron emission mammography in breast cancer imaging ... by Schilling, Kathy; Conti, Peter; Adler, Lee; Tafra, Lorraine / Applied Radiology
Bragg's equation, together with full width at half maximum (FWHM) measurements, allowed us to calculate percent change in d-spacing for the shocked samples.
Geological Sciences by Zawiskie, John / Michigan Academician
The parameters obtained for the pixel intensity histograms curves from the masked and exposed areas of panel A are the pixel intensity level at maximum, full width at half maximum (FWHM), and the pixel intensity level range at half height.
Relating gloss loss to topographical features of a PVDF coating by Martin, Jonathan W. / JCT Research
 
 
 
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