Abstract

The goal of this research is to design a compact electromagnetic undulator. This insertion device will be installed at the PBP–CMU–LINAC system of Chiang Mai University (CMU), Thailand, to produce THz radiation. The undulator magnet is designed by using 2D POISSON and 3D RADIA computer code to optimize the magnet dimensions. The width of iron pole (w) should be 12 – 14mm. The height of iron pole (L) should be about 85mm long. The thickness of return yoke should be more than 10mm and the lateral width (T) should be at least 50mm. With the undulator period length of 56mm, a 10 MeV electron beam is expected to produce THz radiation varying from 110μm at K = 1 to 76μm at K = 0.3.

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