1. What is Absorbed Dose?

Absorbed dose is a measure of the energy deposited by ionizing radiation per unit mass of absorbing material. The SI unit for absorbed dose is the Gray (Gy), where 1 Gy = 1 Joule per kilogram.

2. How Does the Calculator Work?

The calculator uses the absorbed dose formula:

Where:

• \( D \) — Absorbed dose (Gy)
• Energy — Energy deposited by radiation (J)
• Mass — Mass of absorbing material (kg)

Explanation: The formula calculates how much energy from radiation is absorbed per unit mass of the material.

3. Importance of Absorbed Dose Calculation

Details: Absorbed dose is fundamental in radiation protection, radiotherapy treatment planning, and assessing radiation effects on materials and biological systems.

4. Using the Calculator

Tips: Enter energy in Joules and mass in kilograms. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between absorbed dose and equivalent dose?
A: Absorbed dose measures energy deposited per mass, while equivalent dose accounts for radiation type by using a radiation weighting factor.

Q2: How does absorbed dose relate to radiation therapy?
A: In radiotherapy, absorbed dose determines how much energy is delivered to tumors and surrounding tissues, critical for treatment effectiveness and safety.

Q3: What are typical absorbed dose values?
A: Diagnostic X-rays might deliver 0.001-0.01 Gy, while radiotherapy treatments typically deliver 1-2 Gy per fraction to tumors.

Q4: What materials can this calculator be used for?
A: The formula applies to any material - human tissue, water, air, or other substances absorbing radiation.

Q5: How precise are absorbed dose measurements in practice?
A: Clinical measurements typically aim for ±5% accuracy, though specialized applications may require higher precision.