| English | German |
| Al2O3 detector | Aluminiumoxiddetektor |
| BF3 chamber | Bortrifluoridkammer |
| BF3 counter | Bortrifluoridzählrohr |
| BF3 counter tube | Bortrifluoridzählrohr |
| BF3-filled counter tube | Bortrifluoridzählrohr |
| BF3-filled ionization chamber | Bortrifluoridkammer |
| BF3 filled neutron counter tube | Bortrifluoridzählrohr |
| BF3 ionization chamber | Bortrifluoridkammer |
| BF3 neutron counter | Bortrifluoridzählrohr |
| BF3 proportional counter tube | Bortrifluorid-Proportionalzählrohr |
| 3,4-dihydroxyphenylalanine-xxC | α-Amino-ß-3,4-dihydroxyphenylpropionsäure-¹¹C |
| 3,4-dihydroxyphenylalanine-xxC | ¹¹C-DOPA |
| 3,4-dihydroxyphenylalanine-xxC | ß-3,4-Dihydroxyphenyl-D,L-a-alanin-l-¹¹C |
| 3,4-dihydroxyphenylalanine-xxC | DOPA-¹¹C |
| 3,4-dihydroxyphenylalanine-xxC | 3,4-Dihydroxyphenylalanin-¹¹C |
| 3He counter tube | Helium-3-Zählrohr |
| helium-3 counter | Helium-3-Zählrohr |
| helium-3 counter tube | Helium-3-Zählrohr |
| 3 H-thymidine | 3H-Thymidin (a radiopharmaceutical) |
| 4n + 3 family | Uran-Actinium-Zerfallsreihe |
| 4n + 3 series | Uran-Actinium-Zerfallsreihe |
| 3',5',3,5-tetraiodothyronine | 3',5',3,5-Tetraiodthyronin (also a radiopharmaceutical) |
| 3',5',3,5-tetraiodothyronine | 3',5',3,5-Tetrajodthyronin (also a radiopharmaceutical) |
| 3',5',3,5-tetraiodothyronine | Thyroxin (also a radiopharmaceutical) |
| 1,3,7-trimethylxanthine | Thein (a radioprotective substance) |
| 1,3,7-trimethylxanthine | 1,3,7-Trimethylxanthin (a radioprotective substance) |
| 1,3,7-trimethylxanthine | Caffein (a radioprotective substance) |
| 1,3,7-trimethylxanthine | Koffein (a radioprotective substance) |
| 1,3,7-trimethylxanthine | Kaffein (a radioprotective substance) |
| 1,3,7-trimethylxanthine | Coffein (a radioprotective substance) |
