[1I01-05] 加速器・放射光

[1I04] Study on space charge effect in a compact THz coherent undulator radiation (THz-CUR) source at Kyoto University

*Siriwan Krainara¹, Hideaki Ohgaki¹, Toshiteru Kii¹, Heishun Zen¹, Shuya Chatani¹ (1. Institute of Advanced Energy, Kyoto University)

キーワード：Coherent Undulator Radiation (CUR), THz radiation energy, Space charge effect

Because of the bunch lengthening and degradation of electron beam quality due to the space charge effect, the THz-CUR energy at 0.16 THz generated from the compact linac system in Kyoto University shows a saturation when the bunch charge is higher than 80 pC. GPT simulation has been performed and compared with the experiment.