TITLE: Computer Assisted Gamma and X-Ray Tomography: Applications to Multiphase Flow Systems.

AUTHOR: S. B. Kumar;   M. P. Dudukovic;   B. A. Toseland.

INST.  AUTHOR: Washington Univ., St. Louis, MO. Dept. of Chemical Engineering.

SPONSOR: Department of Energy, Washington, DC.

LANGUAGE: English

PUB.  TYPE: Technical Report

PUB.  COUNTRY: United States

SOURCE: Department of Energy [DE],  Mar 97,  69p.

NTIS ORDER NO.: DE97054031INW

ABSTRACT:

The application of X-ray and gamma ray transmission tomography to the study of process engineering systems is reviewed. The fundamental principles of tomography, the algorithms for image reconstruction, the measurement method and the possible sources of error are discussed in detail. A case study highlights the methodology involved in designing a scanning system for the study of a given process unit, e.g., reactor, separations column etc. Results obtained in the authors' laboratory for the gas holdup distribution in bubble columns are also presented.  Recommendations are made for the Advanced Fuels Development Unit (AFDU) in LaPorte, TX.

REPORT  NUMBER: DOE/PC/95051-T4

CONTRACT  NUMBER: FC22-95PC95051