Flux
From Online Dictionary of Crystallography
تدفق (Ar); Flux (Fr); Fluss (Ge); Flusso (It); 流速 (Ja); Flujo (Sp).
Flux represents the integrated intensity of an X-ray beam and is defined as the number of X-ray photons emitted per unit time. The unit for flux is photons per second (p.p.s.).