A method for image acquisition includes selectively concealing and exposing an x-ray source 18 to a target object 56 while the x-ray source 18 travels along a first path P, virtually moving an x-ray detector 20 along a second path P' in a first direction while the x-ray source 18 is exposed to the target object 56, and virtually moving the x-ray detector 20 along the second path P' in a second direction generally opposite the first direction while the x-ray source 18 is concealed from the target object 56.
