A method for detection of ionizing radiation comprises the steps of (i)
directing ionizing radiation towards an object to be examined; (ii)
preventing Compton scattered radiation, preferably at least 99% of the
radiation Compton scattered in said object, from being detected; and (iii)
detecting ionizing radiation spatially resolved as transmitted through
said object to reveal a spatially resolved density of said object, wherein
said ionizing radiation is provided within a spectral range such that
more, preferably much more, photons of said ionizing radiation are Compton
scattered than absorbed through the photoelectric effect in said object to
thereby reduce the radiation dose to said object.
