Convert Femtobecquerels to Becquerels
Convert Femtobecquerels (fBq) to Becquerels (Bq) instantly and accurately.
Conversion Formula
Bq = fBq × 1.000000000e-15
About Femtobecquerels
The femtobecquerel (fBq) equals 10⁻¹⁵ Bq, used in accelerator mass spectrometry (AMS) to quantify cosmogenic radionuclides (¹⁰Be, ³⁶Cl) in ice cores and geological samples. Ultra-low-background counting in deep underground laboratories reaches the fBq/kg level for solar neutrino detector purity assessment. 1 fBq = 10⁻¹⁵ Bq = 10⁻³ pBq.
About Becquerels
The becquerel (Bq) is the SI coherent unit of radioactivity, defined as exactly one nuclear disintegration per second. Named after Henri Becquerel (discoverer of radioactivity, 1896), it replaced the curie in SI. Household smoke detector ²⁴¹Am sources contain ~30 kBq; a banana contains ~15 Bq of ⁴⁰K. 1 Bq = 1 s⁻¹.
Quick Reference Table
| Femtobecquerels (fBq) | Becquerels (Bq) |
|---|---|
| 1 fBq | 1 × 10-15 Bq |
| 2 fBq | 2 × 10-15 Bq |
| 5 fBq | 5 × 10-15 Bq |
| 10 fBq | 1 × 10-14 Bq |
| 25 fBq | 2.5 × 10-14 Bq |
| 50 fBq | 5 × 10-14 Bq |
| 100 fBq | 1 × 10-13 Bq |