Computed Tomography with Fan Beam Geometry
- 1 October 1977
- journal article
- research article
- Published by Wolters Kluwer Health in Journal of Computer Assisted Tomography
- Vol. 1 (4) , 429-436
- https://doi.org/10.1097/00004728-197710000-00008
Abstract
Data collection for computed tomography (CT), using a fan beam of radiation, is considered in detail. The manner in which the required projection data set is built up as scanning proceeds is demonstrated. By offsetting the fan beam detector from its symmetrical position by a fraction of the element spacing, and by making measurements over 360.degree., the spatial resolution of the detector may be increased by up to a factor of 2. Results of simulations relating to an actual CT device under construction are presented.This publication has 2 references indexed in Scilit:
- Principles of computer assisted tomography (CAT) in radiographic and radioisotopic imagingPhysics in Medicine & Biology, 1976
- The reconstruction of objects from shadowgraphs with high contrastsPattern Recognition, 1975