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Keep track of your TRAK!
Total Reference Air Kerma
Nkiwane et al, Brachytherapy
16(6):1184-1191, 2017
Datta et al, Brachytherapy
2:91–97, 2013
TRAK = ∑t
i
* RAKR
RAKR = 4.07 cGy/s (10Ci Ir-192)