Radiation from Relativistic Electrons in Periodic Structures "RREPS-15"

Coherent Radiation Measurements Stations at KEK LUCX Facility

11 Sept 2015, 10:15

15m

Oral 8. Advanced Generation of THz and X-ray beams 8. Workshop on THz radiation generation

Speaker

Mikhail Shevelev (KEK)

Description

Recent years have shown the significant progress in the field of application of short and hight brightness THz-frequency pulses. One way to obtain THz radiation pulses is use of coherent radiation generated by femtosecond electron bunches in a compact accelerator. To increase investigation efficiency of various mechanisms for generating EM radiation including stimulated coherent diffraction radiation, Cherenkov radiation, Smith-Purcell radiation, an international collaboration network with leading Universities of Japan and Europe was founded on the base of KEK. As a part of THz program the radiation measurements station was designed and installed at KEK LUCX (Laser Undulator Compton X-ray) facility. In this report we discuss the detailed design concept and initial test of the radiation measurements station. We present the first results on the measurements of angular distribution and spectrum of a coherent transition radiation. This work was supported by Photon and Quantum Basic Research Coordinated Development Program from the Ministry of Education, Culture, Sports, Science and Technology, Japan and JSPS KAKENHI grant numbers $23226020$.