[1I01-05] Accelerator and Synchrotron Radiation

[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)

Keywords: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.