Dose 2016
We are measuring a depth dose curve in a 15MV X- ray beam. At point r
Q8
r 0
r
D med
(r 0
) = D det
(r 0
)·p (r 0
)· f Q
(r 0
)·
D med
(r) = D det
(r)·p (r)· f Q
(r)·
Sauer & Wilbert MP 34 , 2007, 1983-1988
1. A silicon diode will overestimate the dose to water
2. A silicon diode will underestimate the dose to water
3. An air ionisation chamber will underestimate dose to water
4. An air ionisation chamber will overestimate dose to water
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