Valery Voinov is one of e-MSion’s founders and the principal inventor of its current core technology. For the past almost forty years, he has devoted himself to studying gas-phase interactions between electrons and molecules. As a result of this career-long activity, he has acquired considerable expertise in electron ionization techniques. He started working at The Pacific Institute for Bioorganic Chemistry (PIBOC) in 1979, where he became involved in the instrumental development of a resonance electron capture (REC) mass spectrometer – computer system. Another part of his research at PIBOC concerned the structural investigation of organic substances by REC techniques. After working for two years at the University of Antwerp, where he modified commercially available instruments for operation in the REC mode to study lipids, he moved to Oregon State University in 2002. Working with Doug Barofsky and Joe Beckman for the past years, he has been engaged in the development of a practicable electromagnetostatic electron-capture dissociation (ECD) device. These efforts proved to be exceedingly fruitful – the culmination of which is a new device for performing ECD that can be installed in any type of mass spectrometer.