Exposure of the swiss population by radiodiagnostics: 2013 review

This study revealed that the average annual number of examinations is 1.2 per inhabitant, and the associated annual effective dose is 1.4 mSv. It also showed that computed tomography is the most irradiating modality and that it delivers 70 % of the total dose. The annual effective dose per inhabitant registered a 17 % increase in 5 y and is comparable with what was recently reported in neighbouring countries.

http://rpd.oxfordjournals.org/cgi/content/short/169/1-4/221?rss=1

Source: Radiation Protection Dosimetry - June 6, 2016 Category: Radiology Authors: Le Coultre, R., Bize, J., Champendal, M., Wittwer, D., Ryckx, N., Aroua, A., Trueb, P., Verdun, F. R. Tags: Paper Source Type: research