1. A system for forming an image of an object located in a volume being scanned, said system comprising: a first scanning x-ray source for generating x-rays that radiate from a first source point located along a first scan path, said first source point being movable along said first scan path in response to an input signal; a plurality of x-ray image sensors positioned to intercept said x-rays after passing through said volume; and a controller for generating said input signal and receiving signals from said x-ray image sensors, wherein said object is divided into a plurality of voxels and wherein said x-ray image sensors are positioned such that x-rays pass through each voxel and arrive at one of said image sensors when said first source point is located at a plurality of locations along said first scan path.