Title :
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
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;
Conference_Titel :
High Power Particle Beams (BEAMS), 2008 17th International Conference on
Conference_Location :
Xian
