Title :
Very low output-impedance RF system for a proton synchrotron with low drive power requirements
Author :
Irie, Y. ; Takano, S.
Author_Institution :
KEK, High Energy Accel. Res. Organ., Ibaraki, Japan
fDate :
10/1/1999 12:00:00 AM
Abstract :
In order to solve a power consumption problem of the driver stage in the cathode-follower RF system, a grid-cathode driving scheme is investigated by means of an isolation transformer. A very low output impedance can be realized together with a voltage gain a few tens of times higher than that of a cathode-follower. The model system has been tested under frequency modulation in the 1-3-MHz range at 40-Hz repetition; the output impedance is less than 30 Ω and the driver voltage 62 V to produce a 1.2-kV peak at the cavity gap
Keywords :
accelerator RF systems; frequency modulation; power consumption; proton accelerators; radiofrequency amplifiers; synchrotrons; transformers; 1 to 3 MHz; 1.2 kV; 30 ohm; 62 V; cathode-follower RF system; driver voltage; frequency modulation; grid-cathode driving scheme; isolation transformer; low output impedance; output impedance; power consumption; proton synchrotron; Cathodes; Feeds; Frequency modulation; Impedance; Power system modeling; Protons; Radio frequency; Synchrotrons; Voltage; Voltage-controlled oscillators;
Journal_Title :
Nuclear Science, IEEE Transactions on
