Comments on the precise definition of the concept of absorbed dose

The absorbed dose D is the fundamental physical quantity that best correlates the physical, chemical and biological effects induced by ionizing radiation. However, its definition given by ICRU 85a lacks rigor in the following aspects, [1]: a) does not use the modern definition of random variable of the axiomatic theory of Kolmogorov [2, 3], b) neither does it correctly define the concept of stochastic variable [4, 5], c) does not explain the electronic equilibrium condition EE to eliminate the temporal dependence of the imparted energy ε(r, t), considered as a stochastic variable, [5].