| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9845769 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2005 | 11 Pages |
Abstract
We developed an initial-beam-loading compensation system for electron linacs. This system consists of a ÎΦ-A (phase-to-amplitude) modulator and a fast-phase detector. The ÎΦ-A modulator can modulate the phase and the amplitude of a low-power RF simultaneously. Low-power and high-power tests were successfully carried out at KEK. The result of the high-power tests show that our system can reduce the energy spread from 27 to 0.3% for a 300-mA average current. The system that we developed can be a powerful tool for initial-beam-loading compensation. In addition, a numerical calculation method using the power-flow matrix was formulated to perform a fast beam-energy calculation with a simple algorithm. This method can be used to obtain the target RF waveform for energy-spread compensation.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
M. Satoh, T. Matsumoto, T. Shidara, S. Fukuda, H. Kobayashi, Y. Kamiya, N. Nakamura, T. Koseki, S. Miura,