Paper |
Title |
Page |
MOPPP076 |
Design Considerations for a Hybrid Undulator Applied in a Terahertz FEL Oscillator |
738 |
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- B. Qin, M. Fan, Y.Q. Xiong
Huazhong University of Science and Technology (HUST), Wuhan, People's Republic of China
- Y.J. Pei
USTC/NSRL, Hefei, Anhui, People's Republic of China
- P. Tan
HUST, Wuhan, People's Republic of China
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A planer undulator using hybrid permanent magnet scheme was designed for a FEL based 1THz~3THz radiation source. The influence of the undulator magnetic field errors, including peak field shift and field integrals errors, on the coherent radiation performance such as the gain per pass is investigated. And finally specifications of the undulator are determined.
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TUPPP059 |
Effects of Metal Mirrors Reflectivity and Aberrations on THz FEL Radiation Performance |
1729 |
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- P. Tan, T. Yu
HUST, Wuhan, People's Republic of China
- M. Fan, Q. Fu, D. Li, B. Qin, Y.Q. Xiong, Y.B. Yibin
Huazhong University of Science and Technology (HUST), Wuhan, People's Republic of China
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The primary design study of terahertz free-electron laser (FEL) is presented in this paper. The effects of optical cavity parameter, metal mirrors reflectivity and aberrations on the THz FEL radiation performance have been explored. The reflectivity characteristics of copper, silver and gold are tested in terahertz region. The effects of metal mirrors reflectivity and aberrations on the THz FEL radiation performance are studied by numerical simulation.
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THPPD053 |
Study on Eddy Current Power Losses in Insulated Core Transformer Primary Coil |
3632 |
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- L. Yang, X. Liu, Y.Q. Xiong, J. Yang
Huazhong University of Science and Technology (HUST), Wuhan, People's Republic of China
- T. Yu
HUST, Wuhan, People's Republic of China
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Insulated core transformer (ICT) high-voltage DC power supply is widely used in electron beam accelerator. With air gap in ICT, the reluctance of magnetic circuit is larger than other transformers, and the transverse magnetic flux leakage around the primary coil is more serious. Because the magnetic flux on the radial direction of coil cannot be ignored, the eddy current loss on the wire should be discussed. In this paper, simulation and analysis of the eddy current loss is presented. The relationship between the sizes of the coil wire is also discussed. An optimal design of the primary coil is shown.
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