Stationary Computed Tomography using Rotating Electron Source
Publication Date: 2003-Mar-14
The IP.com Prior Art Database
The present invention is aimed at solving the technical challenges resulting from the need for a rotating electron source inside a CT scanner system. This is accomplished by only rotating the most important unit, the electron source assembly and by eliminating the need for rotating heavy and large x-ray tubes and their accessories. This method can be used to develop a CT system where the only rotating part is a very light weight electron source assembly. The rotation of x-ray source is created by rotating the electron source around a stationary anode (target). The rotating electron source assembly consists of an electron source (filaments), grid/bias electrodes, a magnetic circuit for rotation, and connecting brushes/rollers to power supply rails. The movement is similar to a linear motor used for rails.