10.2.5 Impact risk assessment

a. For the translation of flux into number of impacts N, a linear increase of N with exposed area and with exposure time shall be used, as follows:

(10‑2)

Where:

F is the number of impacts per unit area;

A is the total exposed area;

T is the exposure time.

b. Impact risk analyses based on the number of impacts N shall be conducted through the application of Poisson statistics.

c. The probability of exactly n impacts occurring in the corresponding time interval shall be determined according to the expression:

(10‑3)