IPAC'23 - 14th International Particle Accelerator Conference

Radiation transport line for Terahertz Coherent Diffraction Radiation at ERL Test Accelerator in KEK

TUPL175

9 May 2023, 16:30

2h

Sala Laguna

Poster Presentation MC2.A23: Other Linac Based Photon Sources Tuesday Poster Session

Speaker

Dr Yosuke Honda (High Energy Accelerator Research Organization)

Description

cERL in KEK is a test accelerator for development works of technologies related to Energy Recovery Linac (ERL) and CW-Superconducting accelerators. It can produce a low emittance and short bunch beam at a high repetition rate. This feature is suitable for producing a high average power terahertz (THz) coherent radiation. We have been developing a THz source based on Coherent Diffraction Radiation (CDR) at the straight section of cERL. In the scheme, a short bunch electron beam passing through a metal target with a small hole emits coherent radiation. We have built a THz transport system from the source to an experiment station at outside of the accelerator shielding.
The unique higher-order mode transverse profile of CDR has been confirmed at the experiment station. We will report the design and tuning procedure of the THz transport optics in beam experiments.

Funding Agency

JSPS KAKENHI