Computerized Heavy-Ion Tomography

W. R. Holley; C. A. Tobias; J. I. Fabrikant; J. Llacer; W. T. Chu; E. V. Benton

doi:10.1117/12.931815

16 July 1981 Computerized Heavy-Ion Tomography

W. R. Holley, C. A. Tobias, J. I. Fabrikant, J. Llacer, W. T. Chu, E. V. Benton

Proceedings Volume 0273, Application of Optical Instrumentation in Medicine IX; (1981) https://doi.org/10.1117/12.931815
Event: Application of Optical Instrumentation in Medicine, 1981, San Francisco, United States

Abstract

Several techniques for heavy-ion computerized tomography are being investigated at Lawrence Berkeley Laboratory. Using beams of carbon and neon from the Bevalac, we have demonstrated that these methods are feasible and capable of high resolution. We describe in some detail the method of heavy-ion CT imaging using nuclear track detectors, including a discussion of procedures for optical scanning and digitization of data and computerized distortion corrections. Comparisons between a heavy-ion CT image and X-ray CT image of a simple phantom are discussed. Preliminary results from two techniques using active, online detector systems for performing heavy-ion computerized tomography are presented. One method uses a multiplane, multiwire ionization chamber for detecting the heavy ions in a mode allowing true three-dimensional reconstructions. The other technique uses a system of position-sensitive silicon solid-state detectors for spacial information and high-purity germanium detectors to measure accurately the residual energy of the ions.

Citation Download Citation

W. R. Holley, C. A. Tobias, J. I. Fabrikant, J. Llacer, W. T. Chu, and E. V. Benton "Computerized Heavy-Ion Tomography", Proc. SPIE 0273, Application of Optical Instrumentation in Medicine IX, (16 July 1981); https://doi.org/10.1117/12.931815

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