Curie (Ci)
The curie (symbol Ci) is a unit of radioactivity, defined as 1 Ci = 3.7×10¹⁰ decays per second. This is roughly the activity of 1 gram of the radium isotope ²²⁶Ra, a substance studied by the pioneers of radiology, Marie and Pierre Curie (for whom the unit is named).
- Becquerel (Bq)3.7×10¹⁰
- Kilobecquerel (kBq)37,000,000.01
- Megabecquerel (MBq)37,000
- Gigabecquerel (GBq)37
- Terabecquerel (TBq)0.04
- Curie (Ci)1
- Disintegrations per minute (dpm)2.22×10¹²
- Rutherford (Rd)37,000