The zone of the magnetic field where strength is above 50% of the peak value. This is the region of highest therapeutic relevance, where the field is strong enough to deliver meaningful energy to tissue. The Therapeutic Core Flux metric quantifies the total magnetic flux within this zone.
Also known as: Therapeutic Core 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.
