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Updated: Aug 8, 2026
Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures
Published on: October 9, 2012
The smallest electron storage ring for high-intensity far-infrared and hard X-ray productions
1Department of Optronics, College of Science and Engineering, Ritsumeikan University, Nojihigashi, Kusatsu, Shiga 525, Japan.
Abstract:
The status of the world's smallest electron storage ring is reported. This ring is designed to provide coherent far-infrared (FIR) and incoherent hard X-ray emissions from a single 50 MeV storage ring. The FIR emission is forced by a surrounding mirror around the electron orbit. The FIR emission mechanism is rather similar to that of the free-electron laser. The expected FIR output is of the order of 100 W. Bremsstrahlung is used instead of synchrotron radiation to generate hard X-rays. Since electrons recirculate and gain energy from the accelerating cavity, the expected hard X-ray brightness exceeds that of a rotating-anode source by about 1000 times or more.
