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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Kishiro, J. Ebihara, K. Hiramatsu, S. Kimura, Y. Ozaki, T. Takayama, K. Whittum, D.H. Saito, K. |
| Copyright Year | 1993 |
| Description | Author affiliation: Nat. Lab. for High Energy Phys., Ibaraki, Japan (Kishiro, J.; Ebihara, K.; Hiramatsu, S.; Kimura, Y.; Ozaki, T.; Takayama, K.; Whittum, D.H.) |
| Abstract | A R&D program on a free electron laser(FEL) in the microwave regime is currently in progress at KEK, intending to investigate the feasibility of an FEL as a promising GW order high power microwave source for the two beam accelerator (TBA) scheme in a future high energy linear collider. The first prototype of the KEK FEL was an induction linac driven X-band (9.4 GHz) FEL energized by a 800 keV, 1 kA electron beam. The rf power amplification exceeded 30 MW, however, theoretical work indicated that the 800 keV operation was in the Raman regime and the FEL gain was limited by a strong space charge effect. To cure problems arising from the space charge effect, a new generation of the KEK FEL has been completed, in which the driving electron beam energy was upgraded to 1.6 MeV and about 700 A beam current was successfully transported through a wiggler magnet. In parallel to the FEL investigation, several types of high current induction linacs and a pulse power system were also developed. The pulse power system consists of two gate-turn-off thyristor (GTO) switch modules, two magnetic pulse compressors and a dc high voltage source. A 1.6 kV dc high voltage is resonantly discharged by the GTO switches and its pulse duration is compressed to 200 kV, 100 ns pulse power by a combination of two step-up transformers and three saturable inductors. The induction linacs are of two types. One is loaded by a ferrite magnetic cores (TDK PE14) and the other is loaded by amorphous cores (Metglass 2605S). The details of the induction linacs and pulse power system design and a performance will be reported. |
| Starting Page | 673 |
| Ending Page | 675 |
| File Size | 282891 |
| Page Count | 3 |
| File Format | |
| ISBN | 0780312031 |
| DOI | 10.1109/PAC.1993.308821 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1993-05-17 |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Linear particle accelerator Pulse power systems Electron beams Thyristors Switches Pulse compression methods Pulse transformers Colliding beam accelerators Space charge Magnetic resonance |
| Content Type | Text |
| Resource Type | Article |
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