The total magnetic flux integrated across the coil area, from center to the coil boundary (or the 10% falloff boundary if the coil diameter isn't specified). Expressed in milliweber (mWb). This is the widest flux zone and represents all magnetic energy delivered within the coil's physical area. In the Flux Distribution chart, this is the top bar. Therapeutic Core Flux and High-Intensity Flux are both subsets of Total Effective Flux.
Concentration score asks how much of the field lands in its strongest zone. The gauge on the left is that score as a percentage, the same gauge the report shows. On the right is the field it measures: the core is the region at or above half the peak strength, and the score is the share of the field inside it. A tightly focused coil puts most of its field in the core and scores high; a broad coil spreads it out and scores lower. It describes focus at the surface, not depth.
