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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Akemoto, M. Honma, H. Nakajima, H. Shidara, T. Fukuda, S. |
| Copyright Year | 2007 |
| Description | Author affiliation: High Energy Accel. Res. Organ., Tsukuba (Akemoto, M.; Honma, H.; Nakajima, H.; Shidara, T.; Fukuda, S.) |
| Abstract | Summary form only given. This paper presents two type of long-pulse 1.3 GHz klystron modulator recently developed for the Superconducting RF Test Facility(STF) at High Energy Accelerator Research Organization(KEK). The STF is a project at KEK to build and operate a test linac with high-gradient superconducting cavities, as a prototype of the main linac systems for International Linear Collider(ILC). This plan includes phase I and phase II. In the phase I, two modulators are used to drive a klystron respectively. One is a direct-switched type design with a 1:6 step-up transformer and a bouncer circuit to compensate the output pulse droop within +/-0.5% during the rf drive period, and operates a single-beam klystron up to 5 MW peak power, 1.5 ms rf pulse width and up to 5 pps repetition rate. This modulator was converted from a short-pulse klystron modulator system inherited from Power Reactor and Nuclear Fuel Corp. The other is also a direct-switched type design with a 1:15 step-up transformer and a bouncer circuit, and operates a multi-beam klystron up to 10 MW peak power, 1.5 ms rf pulse width and up to 5 pps repetition rate. The main features of this modulator are the uses of four 50 kW switching power supplies in parallel to charge the storage capacitors to 10 kV, self-healing type of capacitor to realize a compact storage capacitor bank, and a high reliable series IGBT switch. The design, specifications and performance tests are described. |
| Starting Page | 663 |
| Ending Page | 663 |
| File Size | 39368 |
| Page Count | 1 |
| File Format | |
| ISBN | 9781424409150 |
| ISSN | 07309244 |
| DOI | 10.1109/PPPS.2007.4345969 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2007-06-17 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Radio frequency Test facilities Klystrons Pulse circuits Pulse transformers Space vector pulse width modulation Capacitors Testing Linear particle accelerator Switches |
| Content Type | Text |
| Resource Type | Article |
| Subject | Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering |
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