In one aspect, it is disclosed a detection system comprising: a plurality of detectors, each detector being configured to detect radiation scattered by an associated respective portion of a load to inspect, the radiation being scattered in response to the respective portion being irradiated by radiation transmitted through the portion; and a plurality of collimators associated with the plurality of detectors, each collimator of the plurality of collimators being associated with a respective detector of the plurality of detectors and being configured to, for each detector of the plurality of detectors: enable radiation scattered by the respective portion of the load to reach the associated detector of the plurality of detectors, and inhibit other scattered radiation from reaching the associated detector.