The effect of space charge on bunching in a two-cavity klystron
- 1 January 1959
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IRE Transactions on Electron Devices
- Vol. 6 (1) , 54-64
- https://doi.org/10.1109/t-ed.1959.14450
Abstract
The effect of space charge on bunching in a two-cavity klystron has been analyzed by many investigators, but no rigorous theory exists for large-signal bunching in a finite beam klystron. The various available theories are reviewed and compared with new experimental data on the subject. It is found that there is 25 per cent loss of bunching efficiency at the drift length which is currently accepted as optimum, namely, 90 degrees of an effective plasma wavelength. It is shown that to reduce this loss to 5 per cent, drift length should vary from 65 degrees of an effective plasma wavelength at\gamma b= 0.5 to 45 degrees at\gamma b= 2. Reasoning qualitatively from these measurements, the optimum drift lengths for a multicavity klystron are suggested to be: 90° : 90° : ... : 65°-45° : 30°.Keywords
This publication has 7 references indexed in Scilit:
- Ballistic analysis of a two-cavity finite beam klystronIRE Transactions on Electron Devices, 1958
- Space Charge Effects in Dense, Velocity-Modulated Electron BeamsJournal of Applied Physics, 1956
- Plasma frequency reduction factors in electron beamsIRE Transactions on Electron Devices, 1955
- Debunching of Electron Beams Constrained by Strong Magnetic FieldsProceedings of the IRE, 1953
- Velocity Modulated TubesPublished by Elsevier ,1951
- The Electronic-Wave Theory of Velocity-Modulation TubesProceedings of the IRE, 1939
- Cathode-Ray BunchingJournal of Applied Physics, 1939