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The Dosimeters
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Diodes: PTW 9112 (5) and 9113 (1)
➢
Cervix
▪
Alecu R and Alecu M. Med Phys 26 (1999)
o
Agreement with TPS within 15%
▪
Waldhäusl C et al., Rad Onc 77 (2005)
o
Phantom: uncertainty of diode measurements of 7% (1σ)
o
Clinical action level of
±
10%
o
36 out of 55 cases need further investigation
» 19 > 20% rectal dose
» 6 > 20% bladder dose