1. KLYSTRON PratishthaShira Ram EC Semester 6th GGITM

2. INTRODUCTION: A klystron is a specialized linear-beam vacuum tube (evacuated electron tube) The name klystron comes from the stem form κλυσ- (klys) of a Greek verb referring to the action of waves breaking against a shore, and the end of the word electron. The brothers Russell and Sigurd Varian of Stanford University are the inventors of the klystron. They invented it in 1937.

3. WORKING: The electron gun produces a flow of electrons. The bunching cavities regulate the speed of the electrons so that they arrive in bunches at the output cavity. The bunches of electrons excite microwaves in the output cavity of the klystron. The microwaves flow into the waveguide , which transports them to the accelerator. The electrons are absorbed in the beam stop.

5. Reflex Klystron

6. Optical klystron

7. Floating drift tube klystron

9. Klystrons produce microwave power far in excess of that developed by solid state.

10. They are used from UHF (hundreds of MHz) up through hundreds of gigahertz

11. Klystrons are used in

12. radar,

13. satellite

14. and wideband high-power communication (very common in television broadcasting and EHF satellite terminals), medicine (radiation oncology), and

16. Thank you Queries welcome