Adjustable off-focal aperture for x-ray tubes

Patent · Tue Feb 27 04:00:00 EST 1990

OSTI ID:7148828

Mattson, R A; Levar, R E

This patent describes an x-ray tube assembly for radiographic scanners. It comprises: an evacuated envelope; an anode rotatably mounted within the envelope; a housing surrounding the envelope to define a cooling fluid reservoir therebetween, the housing defining an aperture therein and having a collar surrounding the aperture; an x-ray permeable, fluid impermeable window mounted to the housing to seal the aperture; an x-ray beam defining means, an off-focal radiation attenuating means, a flexible cable means, and a first stop means.

• Assignee: Picker International Inc., Highland Hts., OH
• Patent Number(s): A; US 4905268
• Application Number: PPN: US 7-222521A
• OSTI ID: 7148828
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426000 -- Engineering-- Components
Electron Devices & Circuits-- (1990-)
440101* -- Radiation Instrumentation-- General Detectors or Monitors & Radiometric Instruments
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
APERTURES
DESIGN
ELECTRON TUBES
EQUIPMENT
IMAGE PROCESSING
IMAGE SCANNERS
INDUSTRIAL RADIOGRAPHY
OPENINGS
PROCESSING
X-RAY EQUIPMENT
X-RAY RADIOGRAPHY
X-RAY TUBES