Timepix-based detectors for quantum x-ray imaging and fast correlation spectroscopy

Timepix3-based detectors offer unique capabilities for quantum X-ray imaging and fast correlation spectroscopy. At the CHX beamline (NSLS-II), we utilize the Lynx T3 detector to study two distinct applications. First, we detect and analyze X-ray biphotons from parametric down-conversion, achieving record detection for the third consecutive year and imaging the characteristic spatial structure of the process. Second, we leverage the detector’s fast event-based readout to perform X-ray photon correlation spectroscopy (XPCS) at microsecond timescales—orders of magnitude faster than possible with conventional detectors. These advances, coupled with future synchrotron upgrades, pave the way for both development of quantum X-ray optics and dynamics studies in soft and condensed matter systems.