The synchrotron light emission is a radiation source covering a large energy domain from IR to x-ray energies, with an accurate sub-nanosecond time structure determined by the temporal and the physical structure of the stored electron bunches. With proper detectors, the synchrotron radiation emission can be used to perform spectroscopic experiments with very high time and spatial resolution but also to investigate the physical structure of the bunches. We present here the first characterization of the synchrotron light emission of DAΦNE in the midIR domain with a resolution time of few ns. Experiments have been performed using the SINBAD beamline, characterizing the emission of 105 bunches stored in the electron ring of the DAΦNE collider. With a small uncooled infrared detector optimized to work at a wavelength of 10.6 μm we observed the gap between individual bunches separated by about 8 ns, a time equivalent to a frequency of 125 MHz.
Alessio et al. (Thu,) studied this question.