Allemand ⇄ Anglais Français Polonais Russe

Halbwertsdicke f
appar.	half-value layer (thickness)
biol.	half-thickness; attenuation half-thickness (half-value layer, half-value thickness, first, second, ...)
chim.	half-thickness (in radiometry)
phys.	half-value depth; half-value layer; half-value thickness