Temporal resolution research based on x-ray superconducting nanowire single-photon detectors

Superconducting nanowire single photon detector response to X-ray photon was demonstrated using a laser-plasma subps X-ray radiation, to the best of our knowledge. The time jitter was measured to be 248.2 ps, which is larger than ordinary visible or NIR SNSPDs and its efficiency is relatively lower, but the results pave the way for a new competitive X-ray detector with ultrahigh count rates, ultralow timing jitter, ultrahigh sensitivity and negligible dark counts.