| 摘要 |
A method for detection of ionizing radiation comprises the steps of (i) directing ionizing radiation towards an object (7) to be examined; (ii) preventing Compton scattered radiation (3a, 3c), preferably at least 99% of the radiation Compton scattered in said object, from being detected; and (ii i) 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 scatter ed than absorbed through the photoelectric effect in said object to thereby reduce the radiation dose to said object.
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