Patent number 6,281,509

August 28, 2001

Method and apparatus for imaging through 3-dimensional tracking of protons

Abstract

A method and apparatus for creating density images of an object through the 3-dimensional tracking of protons that have passed through the object are provided. More specifically, the 3-dimensional tracking of the protons is accomplished by gathering and analyzing images of the ionization tracks of the protons in a closely packed stack of scintillating fibers.