System safety theory and human factors approach to patient safety for radiotherapy

Abstract

The research questions in this study while developing modern medical technology for safer applications of radiation therapy are – what medical and radiobiological effects and their quantitative models must be taken into account while defining the radiation risk. The uncertainty in the expression of these consequences for the delayed effects is one of the important problems the solution of which is necessary for radiation safety. The main principles of ensuring the radiation safety and the assessment of software technological risk developed on the basis of the intrinsic compatibility with safety systems theory, as an example, those which follow the concept of "Inherent safety" are presented in this paper.