An advances in relativistic BWOs at repetitive rate

Author

Chen changhua ; Guozhi, Liu ; Wenhua, Huang ; Hao, Shao ; Sun Jun ; Xiao Renzhen ; Xiaowei, Zhang ; Yuchuan, Zhang

Author_Institution

Northwest Inst. of Nucl. Technol., Xi´´an, China

fYear

2008

fDate

6-11 July 2008

Firstpage

1

Lastpage

3

Abstract

Advances of repetitively operated relativistic backward wave oscillator (BWOs) is presented. Improvement of operating stability of BWO was obtained based on our earlier BWO operating at 100 Hz repetitive rates through changing the cathode and beam collector. An oil-immersed graphite cathode and water-cooled beam collector were introduced to increase output stability. Experimental results indicate that BWO´s efficiency is up to the highest 33 % at optimum diode voltage, which is consistent with numerical simulations. The BWO could stably operate at rates of 100 Hz with microwave output power of over 1 GW, and the continuous time was up to 5 seconds.

Keywords

backward wave oscillators; numerical analysis; beam collector; frequency 100 Hz; immersed graphite cathode; numerical simulations; oil-immersed graphite cathode; optimum diode voltage; repetitive rate; repetitively operated relativistic BWO; repetitively operated relativistic backward wave oscillator; water-cooled beam collector; Cathodes; Detectors; Electromagnetic heating; Microwave devices; HPM; backward wave oscillator; repetitive rate;

fLanguage

English

Publisher

ieee

Conference_Titel

High Power Particle Beams (BEAMS), 2008 17th International Conference on

Conference_Location

Xian

Type

conf

Filename

6202865