The patent, No. 7661445, covers the use of tungsten shielding inside an x-ray tube, according to the Palo Alto, CA-based firm. It's the 100th x-ray tube patent Varian has received from the U.S. Patent Office.
Varian gets OK to build x-ray tubes in China, January 27, 2010
Varian Medical taps Australian hospital, January 21, 2010
Varian completes German order, January 20, 2010
Varian completes U.K. install, January 12, 2010
Varian to show new products at RSNA, November 30, 2009
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