Ph.D. (1972). Dr. Vadim Dudnikov is an internationally recognized expert in the invention and development of ion sources, ion beam systems, and accelerators. He received a M. Sci. from the Novosibirsk State University (NSU), Novosibirsk, Russia and, one year later, while a student at the Institute of Nuclear Physics (INP), he completed the development of the charge exchange injection, which is still considered to be the best solution to the problem of charged particle injection. While he was at the Institute of Nuclear Physics (INP), Dr. Dudnikov developed many versions of negative ion sources for application in charge exchange injection. In 1971, he discovered the enhancement of negative ion generation in gas discharge by cesium admixture and invented the method of cesium catalysis to enhance negative ion formation in a gas discharge. This method, which dramatically enhances negative ion emission, is now the most widely used method for production of intense high-brightness negative ion beams. There are currently many versions of the Dudnikov type surface plasma negative ion source (SPS) with cesium catalysis. These sources hold the record for efficiency, intensity, brightness, and optimized design. Dudnikov’s discovery of the physical basis of the cesium catalysis has led to the development of SPS in all of the National Laboratories in the USA, Japan and other countries. Cesium catalysis is used in the Neutral Beam Injector for Nuclear Fusion devices. Dr. Dudnikov is a coinventor of the Atomic Beam Polarized Ion Source (ABPIS) with resonant charge exchange ionization of atoms by negative ions generated by interaction of plasma with cesiated surface. Dr. Dudnikov has developed ion beam systems for nano-lithography. He has also developed very high brightness electro-hydrodynamic ion beam sources for many ion species. His innovations in ion beam formation, transportation, space charge neutralization, separation, accumulation, and diagnostics are widely used in accelerators and in ion beam science and technology. In the USA, Dr. Dudnikov has worked in National Laboratories (BNL, ORNL, FNAL), in Universities (UMD, MIT), and in industry (SDI, SCI). For several years he worked as a Chief Scientist at Superior Design, Inc. (SDI), Peabody, MA on the development of the next generation of ion implantation equipment. He developed a program for improving H- negative ion sources, which is now under development at FNAL.