Timothy E. Guertin is on the board of Teradyne, Inc., Acelity LP, Inc. and Varex Imaging Corp. and Chairman of AeA NJ-PA Council, Chairman-Therapy Systems Division at National Electrical Manufacturers Association, Member-Corporate Council at American Society for Radiation Oncology, Member-Corporate Council at Canadian Association of Radiation Oncology and Member of Northern California Council. In his past career Mr. Guertin was Vice Chairman of Varian Medical Systems, Inc. and President for Varian Medical Systems (a subsidiary of Varian Medical Systems, Inc.), Chairman for TechAmerica, Inc. and Treasurer & Trustee at Radiation Oncology Institute. He received an undergraduate degree from the University of California, Berkeley.