Convert Nanocuries per kilogram to Femtobecquerels per kilogram
Convert Nanocuries per kilogram (nCi/kg) to Femtobecquerels per kilogram (fBq/kg) instantly and accurately.
Conversion Formula
fBq/kg = nCi/kg × 3.700000000e+16
About Nanocuries per kilogram
The nanocurie per kilogram (nCi/kg) equals 37 Bq/kg. US EPA soil screening levels for ²²⁶Ra and ²²⁸Ra are given in pCi/g which equals nCi/kg; NRC derived concentration guides (DCGs) for radionuclides in soil for unrestricted-use release are expressed in nCi/kg in 10 CFR Part 20. 1 nCi/kg = 37 Bq/kg = 3.7 × 10⁻⁸ Ci/kg.
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
| Nanocuries per kilogram (nCi/kg) | Femtobecquerels per kilogram (fBq/kg) |
|---|---|
| 1 nCi/kg | 3.7 × 1016 fBq/kg |
| 2 nCi/kg | 7.4 × 1016 fBq/kg |
| 5 nCi/kg | 1.85 × 1017 fBq/kg |
| 10 nCi/kg | 3.7 × 1017 fBq/kg |
| 25 nCi/kg | 9.25 × 1017 fBq/kg |
| 50 nCi/kg | 1.85 × 1018 fBq/kg |
| 100 nCi/kg | 3.7 × 1018 fBq/kg |