Hello. I have a question about the relation between the number of the pair created in the ionization chamber by the radiation and the energy deposited in the counter. In the text, it is written that "The mean number of pairs created is proportional to the energy deposited in the counter." "Techniques for nuclear and particle physics experiments - W.R.Leo" But, I cannot understand this sentence. Of course, I know that if the intensity of the electric field increase, the collected pairs are increased. However, it is not the matter concerned with the recombination, right? Because consideration of the relation between intensity of electric field and recombination is the next thing to think about. That sentence said about creation of the pair. Please answer to my question. Thank you.