Biological particle identification apparatus
This patent describes an apparatus and method for making multiparameter light scattering measurements from suspensions of biological particles. Fourteen of the sixteen Mueller matrix elements describing the particles under investigation can be substantially individually determined as a function of scattering angle and probing radiations wavelength, eight elements simultaneously for each of two apparatus configurations using an apparatus which includes, in its simplest form, two polarization modulators each operating at a chosen frequency, one polarizer, a source of monochromatic electromagnetic radiation, a detector sensitive to the wavelength of radiation employed, eight phase-sensitive detectors, and appropriate electronics. A database of known biological particle suspensions can be assembled, and unknown samples can be quickly identified once measurements are performed on it according to the teachings of the subject invention, and a comparison is made with the database.
- Assignee:
- Dept. of Energy, Washington, DC (USA)
- Patent Number(s):
- US 4884886; A
- Application Number:
- PPN: US 7-302036A; TRN: 90-028903
- OSTI ID:
- 6659521
- Resource Relation:
- Patent File Date: 26 Jan 1989
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
BIOLOGICAL MATERIALS
RADIATION SCATTERING ANALYSIS
IRRADIATION DEVICES
DESIGN
DATA BASE MANAGEMENT
LIGHT SOURCES
MONOCHROMATIC RADIATION
CHEMICAL ANALYSIS
ELECTROMAGNETIC RADIATION
MANAGEMENT
MATERIALS
NONDESTRUCTIVE ANALYSIS
RADIATION SOURCES
RADIATIONS
440101* - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments