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

Volume

46

Issue

5

fYear

1999

fDate

10/1/1999 12:00:00 AM

Firstpage

1289

Lastpage

1293

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;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.795805

Filename

795805