1. A detection apparatus for an inspection line arrangement, comprising: a detection zone on the inspection line through which a plurality of targets, each having at least one characteristic to be inspected, can pass concurrently, or a target having multiple characteristics to be inspected can pass, the detection zone being provided operatively by: a signal source or a signal receiver disposed in a first transmitting or receiving surface, a complementary signal receiver, which is complementary to the signal source, or a complimentary signal source, which is complementary to the signal receiver, disposed in a second complementary receiving or complementary transmitting surface, and a linearizing surface provided proximate the signal receiver, and provided at or near a potential of the signal receiver, the linearizing surface being operative in combination with the signal receiver to resolve detail of the target in a linear slice, and a movement structure for concurrently moving the target with multiple characteristics or the multiple targets with at least one characteristic to be inspected, relative to the signal receiver, through the inspection zone, wherein the first surface plane is disposed at an angle relative to the second surface plane, which angle is not equal to 0 degrees or 360 degrees, and the first surface plane and the second surface plane are disposed to provide, operatively, said detection zone, wherein the apparatus inspects the target or the plurality of targets while the target or the plurality of targets is/are moving relative to the signal receiver via the movement structure, wherein the plurality of targets or the multiple characteristics of a target are inspected in the detection zone.