Brandenburg Formula Calculator

How to Use This Calculator

1. Enter the patient's weight in kilograms (kg).
2. Enter the patient's height in centimeters (cm).
3. Measure and enter the distance from the radiation source in meters (m). This is typically the distance from the X-ray tube to the patient's skin.
4. Enter the exposure time in seconds.
5. Click the "Calculate" button to determine the estimated radiation dose in milligrays (mGy).
6. Review the safety recommendation based on the calculated dose.

Understanding the Brandenburg Formula

The Brandenburg formula is a simplified model used to estimate radiation dose in medical imaging. It takes into account the patient's size (weight and height) and the distance from the radiation source, along with the exposure time. The formula is:

Dose (mGy) = (Patient Weight × 0.1) + (Patient Height × 0.05) - (Distance × 2) + Exposure Time

The formula accounts for the fact that larger patients absorb more radiation, that dose decreases with distance (following the inverse square law), and that longer exposure times result in higher doses.

Important Notes

• This calculator provides an estimate of radiation dose. For precise measurements, use specialized dosimeters.
• The formula is most accurate for standard X-ray examinations. Different imaging modalities may require different calculation methods.
• Always follow proper safety protocols when working with radiation sources.
• The safety recommendations provided are general guidelines. Consult with a radiation safety officer for specific situations.