| Subject | English | German |
| biol. | absorption half-value layer | Absorptionshalbwertschicht (thickness) |
| biol. | absorption half-value layer | Absorptions-HWS (thickness) |
| biol. | absorption half-value layer | Absorptionshalbwertdicke (thickness) |
| biol. | absorption half-value layer | Absorptions-Halbwertschichtdicke (thickness) |
| biol. | self-absorption half-value layer | dicke (thickness) |
| biol. | self-absorption half-value layer | Selbstabsorptions-Halbwertschicht (thickness) |