Relation between the diffraction pattern visibility and dispersion of particle sizes in an ektacytometer

Nikitin, S. M.; Луговцов, А.Е.; Priezzhev, Alexander V.; Ustinov, V.D.

doi:10.1070/qe2011v041n09abeh014675

Cited by 9 publications

(9 citation statements)

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“…This function was first calculated in Ref. [5]. The Function 2 was calculated in the same conditions as Function 1 but the speckle structure in the diffraction pattern was taken into account.…”

Section: Resultsmentioning

confidence: 99%

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Hyperspectral Holography and Laser Diffractometry of Erythrocytes

Луговцов

Ustinov

Kalenkov

et al. 2020

J-BPE

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Geometrical 3D models of human red blood cells in dry smear were obtained experimentally using hyperspectral holography technique. Corresponding diffraction patterns in the far field diffraction zone were calculated. Visibility values of the diffraction patterns were obtained in cases of low and high red cell distributions width (RDW). Our study reveals that although the visibility is influenced by the cells shapes, this parameter can still be used to assess red cell distribution width in clinical practice.

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Section: Resultsmentioning

confidence: 99%

“…In Refs. [5][6], it was shown that the visibility of the diffraction pattern monotonically depends on RDW of the cells in the given blood sample. Thus, laser diffractometry allows one to assess the value of RDW.…”

Section: Introductionmentioning

confidence: 99%

Hyperspectral Holography and Laser Diffractometry of Erythrocytes

Луговцов

Ustinov

Kalenkov

et al. 2020

J-BPE

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“…By solving this system of equations, it is basically possible to find the entire distribution function of RBC sizes, but this requires measuring the distribution of light intensity in a broad field of the diffraction pattern. However, if the measurements of intensity are limited to two angles (in the first dark and light rings of the diffraction pattern), it is possible to find the first two moments of the distribution function of RBC sizes [ 2 , 22 ].…”

Section: Laser Diffraction Analysis As a Methods Of Particle Size Measurementmentioning

confidence: 99%

“…On the whole, the structure resembles the well-known Airy disc pattern produced by diffraction of a plane wave incident on a circular aperture [ 23 ]. Visibility of the diffraction pattern is defined by the following formula [ 2 ]: where is the intensity of light in the first minimum of the diffraction pattern and is the intensity in the subsequent maximum of the diffraction pattern. Visibility of the diffraction pattern can be employed to estimate the dispersion of particle sizes [ 2 ].…”

Section: Laser Diffraction Analysis As a Methods Of Particle Size Measurementmentioning

confidence: 99%

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Scattering of a Laser Beam on an Ensemble of Asymmetrical Erythrocytes

et al. 2021

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The study describes an analytical model of laser beam scattering on an inhomogeneous ensemble of erythrocytes. The model takes into account erythrocyte variation in size, shape, and spatial orientation. A relationship is established between an experimentally determined parameter: visibility of the diffraction pattern, and a characteristic serving as a measure of inhomogeneity of erythrocyte size and shape in a blood specimen. This relationship is shown to be monotonous, which means that erythrocyte variation in size and shape can be assessed based on measurements of the diffraction pattern visibility.

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