Project on the superposition of beamlines for parametric X-ray radiation and coherent transition radiation in the THz region at LEBRA. (July 2016)

• Record Type: Journal Article
• Authors: Hayakawa, Y; Hayakawa, K; Inagaki, M; Kaneda, T; Nakao, K; Nogami, K; Sakae, T; Sakai, T; Sei, N; Takahashi, Y; Tanaka, T
• Is Part Of: Journal of physics. Volume 732(2016)
• Publication Date: 2016-07
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/732/1/012013
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: A new project to develop a terahertz (THz)-wave light source is in progress at the parametric X-ray (PXR) beamline of the Laboratory for Electron Beam Research and Application (LEBRA) at Nihon University. The THz-wave source is based on coherent transition radiation (CTR) emitted from a metal foil inserted downstream from a crystal target that is the PXR radiator. Beryllium or titanium foil is the most promising candidate for a THz-wave radiator. Since the electron linac of LEBRA was developed for a free electron laser (FEL), electron beam with bunch length of 1 ps (rms) can be provided by magnetic bunching at the bending magnet section. Thus, very intense coherent transition radiation (CTR) can be obtained in the frequency region around 1 THz. The results of preliminary experiments for CTR production suggested that sufficiently intense THz-CTR can be obtained using the LEBRA linac. In order to realize a THz-wave source for practical application studies, we have a plan to add the extraction feature for THz waves to the PXR beamline.