Convert Ergs per gram to Femtograys
Convert Ergs per gram (erg/g) to Femtograys (fGy) instantly and accurately.
Conversion Formula
fGy = erg/g × 100000000000
About Ergs per gram
The erg per gram (erg/g) equals exactly 10⁻⁴ Gy and is the CGS-Gaussian unit of absorbed dose. Because 1 rad was originally defined as 100 erg/g, this unit is directly linked to the historical radiation system. Still found in older nuclear physics and health physics texts predating SI adoption. 1 erg/g = 10⁻⁴ Gy = 0.1 mGy.
About Femtograys
The femtogray (fGy) equals 10⁻¹⁵ Gy, used in radiation biology to characterise the dose deposited by a single low-energy Auger electron cascade or a single traversal of a low-LET particle through a cell nucleus. Monte Carlo microdosimetry simulations of targeted radionuclide therapy report subcellular doses at the fGy level. 1 fGy = 10⁻¹⁵ Gy = 10⁻³ pGy.
Quick Reference Table
| Ergs per gram (erg/g) | Femtograys (fGy) |
|---|---|
| 1 erg/g | 1 × 1011 fGy |
| 2 erg/g | 2 × 1011 fGy |
| 5 erg/g | 5 × 1011 fGy |
| 10 erg/g | 1 × 1012 fGy |
| 25 erg/g | 2.5 × 1012 fGy |
| 50 erg/g | 5 × 1012 fGy |
| 100 erg/g | 1 × 1013 fGy |