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The Dosimeters
•
MOSFETs (real-time!)
Urethral dose in seed implants
Cygler JE et al, Rad Onc 80, 2006 (single)
Bloemen-van Gurp E et al, IJROBP 73, 2009 (array)
High sensitivity MOSFET; calibration with
125
I seeds
Uncertainties (ideal situation): 8% (1σ)
Action level
±
16% or 2σ