Varian Medical Systems, Inc. is engaged in designing, manufacturing, selling and servicing equipments and software products for treating cancer with radiotherapy, stereotactic radiosurgery and brachytherapy. The Company also designs, manufactures, sells and services x-ray tubes for original equipment manufacturers (OEMs); replacement x-ray tubes, and flat panel digital image detectors for filmless x-ray imaging in medical, dental, veterinary, scientific and industrial applications. It designs, manufacturers, sells and services linear accelerators, digital image detectors, image processing software and image detection products for security and inspection purposes. The Company also develops, designs, manufactures and services proton therapy products and systems for cancer treatment. In December 2007, it acquired Pan-Pacific Enterprises, Inc. In June 2009, Varian Medical Systems Inc. acquired the assets of IKOEmed and IKOEtech.