CT technology and image reconstruction were used to obtain cross-sectional density distribution images about simulation tower in laboratory, and then this technology was evaluated. For the 1 m diameter of the simulation tower and the 10 cm diameter container inside, the density resolution was in the 5%~10% and the spatial resolution could reach 0.25 pairs/cm (lp/cm).
Boyera C, Koudila A, Chena P, et al. Study of liquid spreading from a point source in a trickle bed via gamma-ray tomography and CFD simulation［J］. Chemical Engineering Science，2005 (60): 6279-6288.
Hampel U, Hoppe D, Bieberle A, et al. Measurement of fluid distributions in a rotating fluid coupling using high resolution gamma ray tomography［J］. Journal of Fluids Engineering, 2008, 130(9): 253-257.
Johansen G A, Hampel U, Hjertaker B T. Flow imaging by high speed transmission tomography［J］. Applied Radiation & Isotopes Including Data Instrumentation & Methods for Use in Agriculture Industry & Medicine, 2010, 68(4-5): 518.