Available Technology

X-ray Tube with Magnetic Electron Steering

Sandia National Laboratories has created an improved efficiency compact X-ray source to address a wide range of applications. The high average power large area X-ray tube provides increased X-ray generation efficiency through the use of magnetic steering to reduce the number of electrons that do not contribute to X-ray production.
Patent Abstract: 
This invention consists of a cathode and anode mounted within an evacuated envelope. A magnetic field generator imposes a magnetic field that urges electrons toward the anode. This reduce the number of electrons that would escape the anode and cause electron heating of the tube. The magnetic field also urges electrons toward areas of the anode that will produce X-rays that are not shadowed. This improves the useable X-ray pattern.
Benefits 
Increases the proportion of electrons emitted from the cathode that contribute to X-ray production in a compact geometry - Provides increased X-ray generation efficiency by increasing the number of electrons that reflect back on the anode
applications 
Internal Laboratory Ref #: 
US Patent#6081
Patent Status: 
Available - Various licensing and partnering options are available. Please contact the intellectual property department to discuss.
Patent Issue Date: 
November 8, 2011
Lab Representatives
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