Convert Kilocuries per kilogram to Femtobecquerels per kilogram
Convert Kilocuries per kilogram (kCi/kg) to Femtobecquerels per kilogram (fBq/kg) instantly and accurately.
Conversion Formula
fBq/kg = kCi/kg × 3.700000000e+28
About Kilocuries per kilogram
The kilocurie per kilogram (kCi/kg) equals 3.7 × 10¹³ Bq/kg = 1 Ci/g. The specific activity of carrier-free ⁶⁰Co is ~1124 Ci/g (= 1.124 kCi/kg or 4.16 × 10¹³ Bq/kg); many radionuclides produced without stable carrier have specific activities in the kCi/kg range. 1 kCi/kg = 3.7 × 10¹³ Bq/kg = 1 Ci/g.
About Femtobecquerels per kilogram
The femtobecquerel per kilogram (fBq/kg) equals 10⁻¹⁵ Bq/kg. Used in accelerator mass spectrometry (AMS) to quantify cosmogenic radionuclide concentrations (¹⁰Be, ³⁶Cl) in ice cores, sediments, and geological minerals where activities per unit mass are at the femto-level. Ultra-clean radiochemistry purity assessments for solar neutrino detectors also reach fBq/kg sensitivities. 1 fBq/kg = 10⁻¹⁵ Bq/kg.
Quick Reference Table
| Kilocuries per kilogram (kCi/kg) | Femtobecquerels per kilogram (fBq/kg) |
|---|---|
| 1 kCi/kg | 3.7 × 1028 fBq/kg |
| 2 kCi/kg | 7.4 × 1028 fBq/kg |
| 5 kCi/kg | 1.85 × 1029 fBq/kg |
| 10 kCi/kg | 3.7 × 1029 fBq/kg |
| 25 kCi/kg | 9.25 × 1029 fBq/kg |
| 50 kCi/kg | 1.85 × 1030 fBq/kg |
| 100 kCi/kg | 3.7 × 1030 fBq/kg |