NAL Booster and Storage-Ring RF Systems

The NAL booster - accelerator radio-frequency system design is described in detail. This rapid-cycling system is ferrite tuned from 30 MHz to 53 MHz. Each high-power module has an RF-output rating of 100 kW provided by a cascode amplifier which is a removable part of the cavity assembly. The low-lev...

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Bibliographic Details
Published inIEEE transactions on nuclear science Vol. 16; no. 3; pp. 510 - 515
Main Authors Dinkel, J. A., Kerns, Q. A., Klaisner, L. A., Tool, G. S.
Format Journal Article
LanguageEnglish
Published IEEE 01.01.1969
Subjects
Assembly
Broadband amplifiers
Control systems
Error correction
Ferrites
High power amplifiers
Radio frequency
Radiofrequency amplifiers
Sensor systems
Wideband
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Summary:The NAL booster - accelerator radio-frequency system design is described in detail. This rapid-cycling system is ferrite tuned from 30 MHz to 53 MHz. Each high-power module has an RF-output rating of 100 kW provided by a cascode amplifier which is a removable part of the cavity assembly. The low-level portion of the system corrects for both systematic and non-systematic tracking errors using a single set of wide-band beam sensors. In the design of a storage-ring RF system, the control of the beam-cavity interaction is a basic problem. This paper describes an arrange ment of TEM mode cavity, cascode power amplifier, beam pickup and feedback control loop to achieve a cavity-gap impedance of about 10 ohms over a frequency range from the synchrotron-oscillation frequency (a few Hz) to the higherharmonics of the bunch frequency. The design center radiofrequencyis 53.1 MHz.
ISSN:0018-9499
1558-1578
DOI:10.1109/TNS.1969.4325286