q	Cumulated activity per unit mass of tissue	MBq s g−1
z̄	Average specific energy to the nucleus of a target cell	Gy
T z	Survival probability to a target cell for cell sensitivity z0	Unitless
ẑ	Normalized absorbed dose: absorbed dose per unit cumulated activity concentration	Gy g MBq−1 s−1
n̂	Normalized average number of hits: average number of hits per unit cumulated activity concentration	hits g MBq−1 s−1
T̂ z0	Normalized survival probability: probability of survival per unit cumulated activity concentration for cell sensitivity z0	Unitless
T̂ z=0	Normalized probability of zero hits: probability of zero hits per unit cumulated activity concentration	Unitless
pdf(ẑ)	Probability density function for the normalized absorbed dose for all target cells	MBq s Gy−1 g−1
pdf(T̂z0)	Probability density function for the normalized survival probability for all target cells for a given cell sensitivity z0	Unitless
〈ẑ〉	Average normalized absorbed dose among all target cells	Gy g MBq−1 s−1
〈T̂z0〉	Average normalized survival probability among all target cells	Unitless
F <	Fraction of tumor cells receiving a normalized absorbed dose lower than 〈ẑ〉h	Unitless
F >	Fraction of tumor cells receiving a normalized absorbed dose higher than 〈ẑ〉h	Unitless
F 0	Fraction of tumor cells receiving a zero normalized absorbed dose—i.e., ẑ = 0	Unitless
pti	Probability of tumor incidence among all analyzed histological samples	Unitless
SF(q)	Survival fraction of tumor cells as a function of cumulated activity concentration q	Unitless
〈ẑ〉uNT	Normal tissue CPE ratio, 〈ẑ〉NT/〈ẑ〉u	Unitless
〈ẑ〉uTT	Tumor tissue CPE ratio, 〈ẑ〉TT/〈ẑ〉u	Unitless
τlung	Residence time in lung tissue	s