Resources Contact Us Home
Heel effect compensation filter X-ray irradiator, X-ray CT scanner and method for X-ray CT imaging

Image Number 12 for United States Patent #7430282.

A heel effect compensation filter is configured to have a thickness distribution that uniforms an X-ray intensity angular distribution that is nonuniform in the body axis direction of a subject in an X-ray flux irradiated space. The space is formed by an X-ray flux diverging from an anode in a body width direction of the subject and diverging in a shape of an approximate sector in the body axis direction due to the heel effect, when the X-ray flux generated on the anode by irradiating a thermoelectron beam flux from a cathode to the anode is irradiated on the subject. The thickness distribution can be obtained using a predetermined formula.

  Recently Added Patents
Contact sensor, driver device, and care bed
Method of forming solderable side-surface terminals of quad no-lead frame (QFN) integrated circuit packages
Imaging apparatus having selection unit to select focus detection areas
Handling errors in a data processing system
Illumination unit for a direct-view display
ZnO green luminescent material and its preparation
Apparatus and methods for inventory, sale, and delivery of digitally transferable goods
  Randomly Featured Patents
Electric toothbrush
High voltage generation and regulation system for digital multilevel nonvolatile memory
Computer-enabled, networked, facility emergency notification, management and alarm system
Process for the manufacture of steroid carboxylic acid lactones
Method and apparatus for metering liquid media in offset printing machines, preferably for varnishing units
Systems and methods for recording programs of lesser interest when convenient
Gas Atmosphere packaging
Hair style album
Self-discharge circuit for secondary battery, and secondary battery including the same