Estimation of the local sublimation front velocities from neutron radiography and tomography of particulate matter
Document type:
Zeitschriftenaufsatz
Author(s):
Gruber, S.; Vorhauer, N.; Schulz, M.; Hilmer, M.; Peters, J.; Tsotsas, E.; Foerst, P.
Abstract:
With this study it was possible for the first time to visualize local
sublimation front velocities of particle beds with neutron radiography
and tomography. Few theoretical studies exist on the freeze-drying
behavior of particle beds, but no experimental validation of the models
exists basically due to the limits of traditional measurement
techniques. The study was conducted at the neutron imaging facility
Keywords:
Bulk; Freeze-drying; Maltodextrin; Neutron radiography; Neutron tomography; Sublimation front