An off-axis 50-period electromagnet wiggler for millimeter-wavefree-electron laser experiment |
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| Authors: | Mohandas K.K. Ravi Kumar A.V. Jain K.K. |
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| Affiliation: | Inst. for Plasma Res., Gandhinagar; |
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| Abstract: | An off-axis 50-period planar, short-wavelength (~10 mm) electromagnet wiggler is developed and characterized for millimeter-wave generation using a sheet electron beam in a free-electron laser experiment. Three-dimensional (3-D) magnetic field measurements of the electromagnet wiggler have been carried out. The measured wiggler magnetic field is 0.16 G/A ±3% while the mean value of wiggler wavelength is 0.998±3% cm. Due to off-axis arrangement of poles, there is a magnetic mirror field in the X direction, to confine the sheet beam |
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