Dose Course 2018_Flipping book

Q3

Point detector correction factors for entrance dose in vivo measurements

1. Have to be determined placing the in vivo detector at the depth of dose maximum inside a water equivalent phantom.

2. Will be determined by placing the in vivo detector on the surface of a water equivalent phantom

3. Are not needed if the build up cap water equivalent thickness of the in vivo detector is larger than the depth of dose maximum

4. Are not needed for detectors with no dose rate or energy dependencies