This is a sole source procurement with Physical Electronics USA, Inc. All Responsible offerors will be considered. Contractor to provide annual maintenance, support, repair and software updates to Phi... This is a sole source procurement with Physical Electronics USA, Inc. All Responsible offerors will be considered. Contractor to provide annual maintenance, support, repair and software updates to Phi Time-of-Flight Secondary Ion Mass Spectrometer and associated components per the attached Statement of Work