Mr. Doba has 20 years experience as a stamped, certified, master welder. He specializes in welding the most complicated high vacuum and harsh environment materials including the treatment horns and refractory windows used in the Pulse Industries linear accelerator systems. These specializations set Mr. Doba apart from others in his field. Able to achieve ultimate vacuums in excess of 1 x 10 -12 ultimate vacuum, his proficiency and skills are crucial to the Pulse Industries rapid installation times of systems in the field. Before working for Pulse Industries he worked in oil pipeline fabrication and installation, worked on boiler and pressure systems as well as nuclear qualified systems. He lead a team of technicians for the installation of numerous support systems utilized in the last industrial electron linear accelerator project. His professional welding quality and experience is unmatched in the industry.