Download or read book Experimental Study of a High Efficiency Gyrotron Oscillator written by Eunmi Choi (Ph. D.) and published by . This book was released on 2007 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: (Cont.) The ACI occurs when the spent electron beam interacts at cyclotron resonance with the traveling output microwave beam in a region of lower magnetic field just after the cavity. The presence of the ACI was identified from the comparison between simulation results and the measurement of the depression voltage as a function of beam current. Future research should consider ways of eliminating the ACI, ways of improving the internal mode converter, and the use of a two-stage depressed collector.