An assembly for sorting bulk material, in particular dry bulk material, wherein some of the bulk material has a predefined property, in particular is radioactive, said assembly comprising a) a conveying device, in particular a continuously running conveying device, for conveying the bulk material, b) a selector, having a number of, at least three, in particular two, rotatably mounted bucket segments (222a, 222b, 222c), wherein at any time one of the bucket segments is arranged beneath the end of the conveying device in such a way that the bulk material dropping down from the conveying device falls into said bucket segment, c) a deflector, the slanted walls (231, 232) of which converging at an edge each close off the edge in a sealing manner with the wall that is opposite the bucket segment into which the bulk material is being conveyed, d) two containers (24, 25), which are arranged one on each side of the edge and which are separated from one another by the wall opposite the bucket segment into which the bulk material is being conveyed, e) a measuring device, which is directed towards a measurement region of the conveying device and which detects when bulk material having the predefined property, in particular radioactive bulk material, is disposed in the measurement region, f) a drive unit for rotating the rotatably mounted bucket segments (222a, 222b, 222c) in each case over a curve portion, in particular 120°, such that the content of the bucket segment into which the bulk material was previously being conveyed reaches either one container or the other container depending on the direction of rotation, and bulk material is conveyed henceforth into another bucket segment (222b, 222c), and g) a control unit, which activates the drive unit to rotate, wherein the direction of rotation is dependent on the measurement result of the measuring device, characterized in that the deflector is roof-shaped and the bulk material reaches one of the containers (24, 25) via one of the walls (231, 232) of the deflector respectively. a) a conveying device, in particular a continuously running conveying device, for conveying the bulk material, b) a selector, having a number of, at least three, in particular two, rotatably mounted bucket segments (222a, 222b, 222c), wherein at any time one of the bucket segments is arranged beneath the end of the conveying device in such a way that the bulk material dropping down from the conveying device falls into said bucket segment, c) a deflector, the slanted walls (231, 232) of which converging at an edge each close off the edge in a sealing manner with the wall that is opposite the bucket segment into which the bulk material is being conveyed, d) two containers (24, 25), which are arranged one on each side of the edge and which are separated from one another by the wall opposite the bucket segment into which the bulk material is being conveyed, e) a measuring device, which is directed towards a measurement region of the conveying device and which detects when bulk material having the predefined property, in particular radioactive bulk material, is disposed in the measurement region, f) a drive unit for rotating the rotatably mounted bucket segments (222a, 222b, 222c) in each case over a curve portion, in particular 120°, such that the content of the bucket segment into which the bulk material was previously being conveyed reaches either one container or the other container depending on the direction of rotation, and bulk material is conveyed henceforth into another bucket segment (222b, 222c), and g) a control unit, which activates the drive unit to rotate, wherein the direction of rotation is dependent on the measurement result of the measuring device,