EFFICIENCY ENHANCEMENT BY PHASE FOCUSING AND COLLECTOR DEPRESSION Open PDF Document Details Document Type Technical Report Publication Date Sep 01, 1962 Accession Number AD0402409 Entities People Joseph E. Rowe Organizations University of Michigan Tags Communities of Interest Energy and Power Technologies Materials and Manufacturing Processes DTIC Thesaurus Topics Accumulators Air Force Amplifiers Backward Wave Oscillators Blood Coagulation Factors Depression Efficiency Frequency Government Procurement Governments Microwave Tubes Oscillators Physics Laboratories Segmented Traveling Wave Tubes Traveling Waves Waves