| Subject | English | German |
| radiat. | compensative decay time constant | kompensierbare Abklingzeitkonstante |
| nucl.phys., radiat. | decay time constant | Impulsabklingzeitkonstante (of a pulse, fall from 100% to 100 %/e) |
| meas.inst. | decay time constant | Abklingzeitkonstante (single-exponential decrease to 1/e) |
| radiat. | decay time constant | Abklingzeitkonstante (of a pulse, fall from 100% to 100 %/e, eines Impulses) |
| meas.inst. | e-folding decay time constant | Abklingzeitkonstante |
| automat. | exponential decay time constant | Zeitkonstante des exponentiellen Zerfalls |
| radiat. | exponential decay time constant | exponentielle Abfallzeitkonstante (of а pulse) |
| radiat. | minimum compensative decay time constant | minimale kompensierbare Abklingzeitkonstante |
| radiat. | pulse decay time constant | Abklingzeitkonstante (eines Impulses) |
| radiat. | pulse decay time constant | Impulsabklingzeitkonstante |