Convert Femtobecquerels per kilogram to Kilocuries per kilogram
Convert Femtobecquerels per kilogram (fBq/kg) to Kilocuries per kilogram (kCi/kg) instantly and accurately.
Conversion Formula
kCi/kg = fBq/kg × 2.702702703e-29
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.
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.
Quick Reference Table
| Femtobecquerels per kilogram (fBq/kg) | Kilocuries per kilogram (kCi/kg) |
|---|---|
| 1 fBq/kg | 2.703 × 10-29 kCi/kg |
| 2 fBq/kg | 5.405 × 10-29 kCi/kg |
| 5 fBq/kg | 1.351 × 10-28 kCi/kg |
| 10 fBq/kg | 2.703 × 10-28 kCi/kg |
| 25 fBq/kg | 6.757 × 10-28 kCi/kg |
| 50 fBq/kg | 1.351 × 10-27 kCi/kg |
| 100 fBq/kg | 2.703 × 10-27 kCi/kg |