Dose Calculation Algorithms

Question 1

Name 4 types of calculation algorithms

Answer 1

• correction based algorithms
• model based algorithms
• Monte Carlo
• Hybrid

Question 2

What is correction based algorithms?

Answer 2

• based on measured dose distributions in a water phantom
• independent corrections for beam modifiers / surface contours / tissue heterogeneities
• based on effective spatial measures such as depth, field boundaries and path lengths
• heterogeneity corrections that produce less accuracy than having no corrections at all

Question 3

Name 2 model based algorithms

Answer 3

• pencil beam algorithms
• convolution algorithms