Measurement of the time jitter of coherent terahertz synchrotron radiation with a superconducting detector

We have applied an ultrafast superconducting YBa 2 Cu 3 O 7-δ (YBCO) detector to study the time jitter of the propagating electron bunches in a synchrotron. The jitter was determined from the coherent terahertz (THz) synchrotron radiation (CSR).