Timothy E Guertin

Timothy E. Guertin is president and chief executive officer of Varian Medical Systems and a member of the company's Board of Directors. Mr. Guertin, 59, joined Varian in 1976 and he has served in several key management positions during his 32-year tenure with the company. Prior to being appointed CEO in February, 2006, he served a year as Varian's president and chief operating officer. He was general manager and president of Varian's Oncology Systems business, the company's largest business and the world's leading supplier of linear accelerators for radiation therapy for cancer, from 1990 to 2005. While managing Varian Oncology Systems, Mr. Guertin was named a corporate vice president in 1992 and executive vice president in 1999. Prior to becoming head of Varian Oncology Systems, he held a variety of positions, including general manager of customer support between 1982 and 1989. He holds a BS in electrical engineering and computer sciences from the University of California at Berkeley. Mr. Guertin is the past chairman of the Board of Directors of the AeA (American Electronics Association), a nationwide trade association that represents all segments of the technology industry, and he is a member of that organization's Silicon Valley/Northern California Council. He is also a member of the Board of Directors of the Diagnostic Imaging Section of NEMA (National Electrical Manufacturers Association), and he served as chairman of NEMA's Therapy Systems Division. In addition, Mr. Guertin sits on the corporate councils of the American Society of Therapeutic Radiology and Oncology (ASTRO), and the Canadian Association of Radiation Oncologists (CARO), professional organizations of radiation oncology clinicians.