Team

Dr. Piestrup formed Adelphi Technology Inc. in 1984 as a sole proprietorship and in 1986 as a California Corporation. Dr. Piestrup has over 40 years of experience in the research and development of electron and ion sources and their use for the generation of x-rays and neutrons. He has a Ph.D. Electrical Engineering from Stanford University (1972). His early research included the first use of lasers to accelerator high energy electrons. Over a 20 year period he and his colleagues at Adelphi and Stanford University developed novel sources of vacuum ultraviolet, soft and hard x-rays using Čerenkov, transition and parametric radiators. Dr. Piestrup's research in the past 20 years has been primarily devoted to the development of new neutron and x-ray sources and optics for medical and industrial applications. Over the past six years he and his colleagues at Adelphi and the Lawrence Berkeley National Laboratory developed new high-current ion sources driven by either RF or microwave power that are used to produced neutrons in Adelphi product line of generators.

Charles K. Gary | Vice President, Operations
Dr. Gary joined Adelphi Technology, Inc. in 1998. Dr. Gary has over twenty-five years of experience working in the generation, detection, and control of x-ray and neutron radiation. He has a Ph.D. Electrical Engineering from Stanford University (1991) and M.B.A. from Heriot Watt University (2004). He has primary responsibility for Adelphi’s manufacturing work. This includes the production of deuterium fusion generators for customers in the US and abroad. He has considerable professional education necessary for managing, including an MBA degree with advanced coursework in project management and Green Belt training in Six Sigma quality control. In addition, he is a certified Radiation Safety Officer, which is critical to the ability to conduct experiments and development work with neutron generators. He is the administrator for Adelphi’s tritium license. He has served as principal investigator for multiple NIH, NSF and NASA projects, including the development of a nano-tomography system capable of submicron 3-D x-ray imaging. Prior to joining Adelphi Technology, he managed the ten-person Information Physics Group at the NASA Ames Research Center working on optical information processing technology; the group won achievement awards for work on the X-33 reusable launch vehicle and the development of fiber optic sensors. He is leading Adelphi’s production of neutron generators, including hardware and software design and integration.

Michael Fuller | Vice President, Marketing
Michael Fuller joined Adelphi Technology, Inc. in 2004. Through his main role at Adelphi, Mr. Fuller heads up the company’s neutron systems marketing effort where he interfaces with private and government groups working to adapt neutron generators to many novel applications. Because of Michael’s wide background in specialty radiation sources, Adelphi has pursued a distributed development approach for new applications in the security and instrumentation industries. Mr. Fuller’s has a technical education in Laser Electro-Optics and numerous business courses in product marketing and management. Following a few years at the Lawrence Livermore Laboratory supporting nuclear fusion science, Michael moved into the commercial side of research and development gaining experience in contracts, quality control, and technology licensing. After seven years at the test equipment maker, Lansmont Corporation, where Mr. Fuller set up an international distribution program, he moved to Kevex X-ray to head their sales and marketing operation. Michael was a key player in the team establishing x-ray microscopy performance standards. Later, at Osmic, Inc., a neutron and x-ray optics company (now Rigaku Innovative Technology), Mr. Fuller oversaw medical applications development and pushed forward diagnostic and therapeutic applications. Michael has traveled extensively to visit and assess needs for radiation science projects across the world.

Dr. J. Theodore Cremer | Chief Scientist
Dr. Cremer joined Adelphi Technology, Inc. in 1996. He has over twenty-five years of experience working in the generation, detection, and control of x-ray and neutron radiation. He has a Ph.D. in Electrical Engineering from University of Maryland (1984). He has primary responsibility for Adelphi’s research and development work on neutron detection and optics. He the principal investigator on a number of US government funded programs that use of neutrons for homeland security, medical imaging and material science. He recently developed a fast neutron imaging detector for non-destructive testing and imaging. He is also developing a rapid detection and identification of explosives via fast neutron inelastic scatter and nuclear resonant fluorescence. Finally, Dr. Cremer is Principal Investigator on a program to develop a thermal neutron prism for use in a monochromator in materials testing. He has been principal investigator for prior NIH, MDA and DOE funded projects on x-ray and neutron optics and neutron generators that lead to the development of the Adelphi neutron microscope, which obtained the first images of both mechanical objects and biological objects.


Hannes Vainionpaa | Scientist
Hannes Vainionpaa has worked for Adelphi first as a consultant and then as a full time employee. For the past 8 years he has been primarily involved with the design, fabrication and testing of fusion neutron generators, ion sources and accelerators. He graduated from University of Jyvaskyla. He has worked for three years at the Lawrence Berkeley National Laboratory’s accelerator and fusion research division and few years in accelerator lab of University of Jyvaskyla. He has been involved in research and development of several ion sources and Low Energy Beam Transport (LEBT) systems.  He has experience on singly charged and multiply charged high plasma density gas discharge ion sources including RF- , filament- and microwave- driven ion sources. His experience includes working with singly charged positive ion and negative ion, ion sources. He has extensive experience in the electro-magnetic field modeling and and ion beam optics simulations. These include numerical codes (e.g. IBSimu, IGUN , PBGUNS, Opera vector field, COMSOL and WARP3D) to simulate electromagnetic fields, LEBT optics and beam current density distributions on fusion targets.

Jack Harris | Senor Engineer
Mr. Harris has worked at Adelphi for over 20 years on the R&D development of neutron and x-ray sources, detectors and optics. He brings with him over 50 years of experience of R&D of electron and ion beam optics. He has over 25 years experience at the Stanford University where he was an engineer working on the Mark III Accelerator, the Super Conduction Accelerator and the Stanford (SLAC) 2-mile linear accelerator. He has extensive experience in both mechanical and electrical engineering that include critical skills needed for neutron generator research and development. These skills include vacuum engineering, liquid gas management, and electronic control. Among other skills, he is an excellent project manager, interacting well with other employees and suppliers.