High-flux entangled photon generation via clinical megavoltage radiotherapy beams for quantum imaging and theranostics

These results indicate that clinical MV beams can act as practical high-flux entangled photon sources, enabling simultaneous therapy and quantum-enhanced imaging. By combining time-resolved positronium lifetimes with energy-resolved Doppler and Compton spectroscopy, the proposed QTX platform could deliver real-time mapping of tumor microenvironment and composition during treatment, extending quantum imaging concepts from optical to therapeutic energy scales.&#xD.