Title :
A Blumlein type modulator for 100 MW-class X-band klystron
Author :
Mizun, H. ; Majima, T. ; Sakamoto, S. ; Kobayashi, Y.
Author_Institution :
KEK, Nat. Lab. for High Energy Phys., Ibaraki, Japan
Abstract :
To achieve the high efficiency in the X-band pulsed klystron modulator for the main linac in Japan Linear Collider, a new modulator with the Blumlein type PFN was designed and fabricated. Two identical 12-stage PFN´s of the 23 ohm characteristic impedance are set on the both sides of the 1 to 7 step-up pulse transformer. Simulations showed that with this pulse transformer, 500 ns 560 kV pulse of 200 ns rise time could be obtained with the droop of 2%. The design and some test results of the Blumlein type modulator and the pulse transformer are presented
Keywords :
electron accelerators; klystrons; linear accelerators; modulators; nuclear electronics; pulse transformers; pulsed power technology; 200 ns; 500 ns; 560 kV; Blumlein type modulator; Japan Linear Collider; X-band klystron; pulse transformer; Acceleration; Capacitance; Circuits; Impedance; Klystrons; Pulse modulation; Pulse shaping methods; Pulse transformers; Radio frequency; Testing;
Conference_Titel :
Particle Accelerator Conference, 1993., Proceedings of the 1993
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-1203-1
DOI :
10.1109/PAC.1993.308608
