The Jožef Stefan Institute (JSI) is the leading Slovenian scientific research institute, covering a broad spectrum of basic and applied research. The staff of more than 960 specializes in research in physics, chemistry and biochemistry, electronics and information science, nuclear technology, energy utilization and environmental science. The subjects concern production and control technologies, communication and computer technologies, knowledge technologies, biotechnologies, new materials, environmental technologies, nanotechnologies, and nuclear engineering. The JSI is financed through the national projects of the ministries of the Republic of Slovenia and the Slovenian Research Agency, international bilateral and multilateral projects and industrial projects in Slovenia and abroad. The mission of the Jožef Stefan Institute is the accumulation - and dissemination - of knowledge at the frontiers of natural science and technology to the benefit of society at large through the pursuit of education, learning, research, and development of high technology at the highest international levels of excellence. The basic goals of the JSI are to provide expert scientific and applied output in the form of processes, products and consultancy, and to produce well-trained young scientists. The JSI maintains close links with the Slovenian universities. Many scientists who once had the opportunity to develop their research talents at the JSI have later been appointed to teaching posts, while still retaining their research positions or leading research teams at the JSI.
At the JSI there are two departments and two special institutional units related to the field of the radiation protection:
- Radiation Protection Unit (RPU) – SVPIS
- Department of Low and Medium Energy Physics (F-2)
- Department of Environmental Sciences (O-2)
- Milan Čopič Nuclear Training Centre (ICJT)