Dose calculators
Calculators for board preparation and teaching. Values come from the book's tables and guidelines; each tool shows its source.
Decay
Remaining activity after a given time, back-correction from measurement to injection time, and time to reach a target activity.
- Half-life
- 6.007 h
- Remaining activity
- 587.5 MBq (15.88 mCi)
- Remaining fraction
- 79.4%
- Back-correction (measured value this long ago)
- 932.1 MBq
- Time to target activity
- 6.01 h
A = A₀ · 2^(−t / T½)
Source: Half-lives from the IAEA LiveChart of Nuclides (ENSDF/NUBASE).
For education only; not for clinical decisions or administration in real patients. Follow your institution's protocol and current guidelines.