Ellipsoid-conic radiation collector and method

Patent · Tue Feb 19 00:00:00 EST 1980

OSTI ID:5575113

Brunsting, A; Hogg, W R

Disclosed is a radiation collector apparatus and method primarily for counting and analyzing a flow of dilute particulate material, such as blood cells, sperm cells and the like, through the use of light detection. The radiation collector apparatus comprises a reflector chamber having an ellipsoidal reflector surface with a pair of elipsoidal foci defining a first focus, f11, and second focus, f12, and a second reflector surface with a primary focus, f21, positioned at the same point as focus f12, and a secondary focus, f22. The second reflector surface has the configuration of one of the conic sections of revolution. In operation the radiation collector apparatus is provided with an intensifed beam of light and a stream of particulate material aligned to intersect the intensifed beam of light at focus f11. Detectable light signals, after two reflections, are received in a focused beam by a photosensitive detector.

• Assignee: Coulter Electronics Inc
• Patent Number(s): US 4189236
• OSTI ID: 5575113
• Resource Relation: Patent File Date: Filed date 20 Mar 1978; Other Information: PAT-APPL-888560
• Country of Publication: United States
• Language: English

Related Subjects

59 BASIC BIOLOGICAL SCIENCES
CELL FLOW SYSTEMS
DESIGN
BEAM OPTICS
BLOOD CELLS
CONICAL CONFIGURATION
ELLIPTICAL CONFIGURATION
PARTICLES
PHOTOSENSITIVITY
RADIATION DETECTORS
REFLECTION
VISIBLE RADIATION
BIOLOGICAL MATERIALS
BLOOD
BODY FLUIDS
CONFIGURATION
ELECTROMAGNETIC RADIATION
MATERIALS
MEASURING INSTRUMENTS
RADIATIONS
SENSITIVITY
550300* - Cytology