Particle analyzing apparatus and method for determining nuclear

Details Particle analyzing apparatus and method for determining nuclear Particle analyzing apparatus and method for determining nuclear

1989-09-01

1991-09-24

McGraw, Vincent P.

Optics: measuring and testing

For optical fiber or waveguide inspection

356 39, 2504612, G01N 3348, G01N 2169, G01N 2164

Patent

active

050509870

ABSTRACT:
A particle suspension is irradiated with a laser beam, and scattered light from a single particle irradiated in an irradiating zone is detected as a plurality of particle signals. The laser beam in the irradiating zone is formed to be narrower than the diameter of a particle nucleus in the direction of particle flow and wider than the diameter of the particle in a direction perpendicular to the particle flow. The degree of complexity of the particle nucleus is determined from high-frequency signal components contained in one type of particle signal based on side-scattered light from one particle, and the degree of symmetry of the particle nucleus is determined from the magnitude of a difference between two types of particle signals based on side-scattered light from one particle. The degrees of complexity and symmetry of the particle nucleus serve as data for particle analysis.

REFERENCES:
patent: 4790653 (1988-12-01), North, Jr.
Journal of Histochemistry & Cytochemistry; vol. 27, pp. 321-324, 1979.

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