Producing Terahertz Conherent Synchrotron Radiation Based On Hefei Light Source

TL;DR

This paper demonstrates theoretically that a combination of a kicker magnet and an ac sextupole magnet in an electron storage ring can generate strong coherent THz radiation, with potential for high-intensity emission at specific frequencies.

Contribution

It introduces a novel method to produce coherent THz radiation in an electron storage ring using a quick kicker magnet and an ac sextupole magnet, supported by theoretical calculations.

Findings

Coherent THz radiation can be generated in an electron storage ring.

Reducing electron energy to 400MeV enhances radiation strength at 0.115THz.

Theoretical spectral distribution matches the proposed setup.

Abstract

This paper theoretically proves that an electron storage ring can generate coherent radiation in THz region using a quick kicker magnet and an ac sextupole magnet. When the vertical chromaticity is modulated by the ac sextupole magnet, the vertical beam collective motion excited by the kicker produces a wavy spatial structure after a number of longitudinal oscillation periods. We calculate the radiation spectral distribution from the wavy bunch in Hefei Light Source(HLS). If we reduce electron energy to 400MeV, it can produce extremely strong coherent synchrotron radiation(CSR) at 0.115THz.