Dr. Thomas Mackie is a Co-Founder and Chairman at Asto CT. He is a Co-Founder of OnLume and also serves as its Chairman. He is a Board member of Nano-X. He is a Co-Founder and serves as Chairman at HealthMyne. He is a Director of Medical Devices (part-time) at the Mortgridge Institute for Research in Madison and Emeritus Professor in the departments of Medical Physics, Human Oncology, and Engineering Physics at the UW-Madison. In 1997, Rock co-founded TomoTherapy Inc., which developed an innovative, integrated hardware/software system for accurate, image-guided radiation treatment delivery. TomoTherapy's initial public offering in 2007 reached a peak market capitalization of over $1.2 B under Rock's leadership as chairman of the board of directors. Prior to its sale to Accuray, TomoTherapy's cumulative revenues exceeded $ 1 billion. In 1992, Rock co-founded Geometrics, a HCIT company which developed the PinnacleTM Radiation Treatment Planning (RTP) system, now marketed by Philips Medical Systems. From 1996 until 2012, Pinnacle generated over $350 M in revenues and achieved a 45+% global market share. Rock has a doctorate in Physics from the University of Alberta. He has more than 150 publications and over 30 inventions with issued US patents.