1130 / 1359
• Dose is increased by stray
electrons
– Build down effect vs in-field build
up effect
• If dosimeter placed on surface it
will overestimate (x5 AAPM 158)
– Unless want a superficial dose
|
|
1130 / 1359
• Dose is increased by stray
electrons
– Build down effect vs in-field build
up effect
• If dosimeter placed on surface it
will overestimate (x5 AAPM 158)
– Unless want a superficial dose