Coulomb per kilogram (C/kg)
SI unit of exposure: electric charge produced by X-rays or gamma rays per kilogram of air.
What is a coulomb per kilogram?
- Symbol
- C/kg
- Quantity
- Radiation Exposure
- Unit system
- SI
- Definition
- SI unit of exposure: electric charge produced by X-rays or gamma rays per kilogram of air.
- Exact
- Yes, the value is exact by definition
- Source
- SI Brochure, 9th edition (BIPM, 2019)
Common applications
The SI unit of exposure, used in radiation physics and for calibrating ionization chambers and X-ray equipment.
Coulomb per kilogram in other radiation exposure units
- 1 C/kg = 1000 mC/kgMillicoulomb per kilogram
- 1 C/kg ≈ 3875.968992 RCoulomb per kilogram to Roentgen converter
- 1 C/kg ≈ 3875968.992 mRMilliroentgen
- 1 C/kg ≈ 3875968992 µRMicroroentgen
Coulomb per kilogram quick reference
| Coulomb per kilogram | Roentgen | Millicoulomb per kilogram | Milliroentgen |
|---|---|---|---|
| 1 C/kg | ≈ 3875.968992 R | = 1000 mC/kg | ≈ 3875968.992 mR |
| 10 C/kg | ≈ 38759.68992 R | = 10000 mC/kg | ≈ 38759689.92 mR |
| 100 C/kg | ≈ 387596.8992 R | = 100000 mC/kg | ≈ 387596899.2 mR |
| 1000 C/kg | ≈ 3875968.992 R | = 1000000 mC/kg | ≈ 3875968992 mR |
Where the coulomb per kilogram fits
The next smaller radiation exposure unit is the millicoulomb per kilogram (mC/kg). 1 C/kg = 1000 mC/kg, and 1 mC/kg = 0.001 C/kg.
Frequently asked questions
- How many roentgens are in one coulomb per kilogram?
- One coulomb per kilogram ≈ 3875.968992 R (roentgens).
- How many millicoulombs per kilogram are in one coulomb per kilogram?
- One coulomb per kilogram = 1000 mC/kg (millicoulombs per kilogram).
- How many milliroentgens are in one coulomb per kilogram?
- One coulomb per kilogram ≈ 3875968.992 mR (milliroentgens).