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Quality System The quality system of the Radiation Metrology Laboratory is internationally recognized. The laboratory participates in the international CIPM MRA Mutual Recognition Arrangement coordinated by the International Bureau of Weights and ...https://stuk.fi/en/quality-system
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Safety principles Assurance of nuclear safety is based on general principles that have been formed by experience and research. According to these principles, safety is ensured by so-called defence in depth and multiple arrangements. The aim is to ...https://stuk.fi/en/safety-principles
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Nuclear security arrangements Nuclear security arrangements are measures to secure the use of nuclear energy from activities that endanger nuclear and radiation safety. Safety arrangements are implemented in the nuclear facility and its area as we...https://stuk.fi/en/nuclear-security-arrangements
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Processing of personal data provided through feedback and questionnaires The information provided in the feedback and questionnaire forms on the Stuk.fi website is stored in the ticketing system (Efecte) of the Registry of the Radiation and Nuclea...https://stuk.fi/en/processing-of-personal-data-on-the-website
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Reporting on nuclear safety Valitse kieli Suomi Välj språket Svenska Select language English Inspections at the Olkiluoto nuclear power plant STUK carries out inspections to oversee the operation and use of the Olkiluoto nuclear power plant. The p...https://stuk.fi/en/inspections-at-the-olkiluoto-nuclear-power-plant
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Reporting on nuclear safety Valitse kieli Suomi Välj språket Svenska Select language English Inspections at the Loviisa nuclear power plant STUK carries out inspections to oversee the operation and use of the Loviisa nuclear power plant. The perio...https://stuk.fi/en/inspections-at-the-loviisa-nuclear-power-plant
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Radon in new buildings Radon prevention in new construction is important in order to ensure low radon concentrations in indoor air. Radon prevention in the construction phase is easier and less expensive than implementing mitigation measures after...https://stuk.fi/en/radon-in-new-buildings
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Applying for a safety licence for the use of radiation The use of radiation is subject to a safety licence granted by the Radiation and Nuclear Safety Authority (STUK). On this page you can find more information on how to apply for a safety licenc...https://stuk.fi/en/apply-for-a-safety-licence-for-the-use-of-radiation
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Prerequisites for a safety licence On this page you will find information on the obligations of all undertakings with regard to the safe use of radiation. Safety assessment concerning a radiation practice In practices subject to a safety licence, ...https://stuk.fi/en/prerequisites-for-a-safety-licence
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Radon mitigation Radon mitigation can easily reduce radon concentration in indoor air. The most effective mitigation methods are sub-slab suction and a radon well. Before starting the mitigation, it is important to check that the ventilation is wo...https://stuk.fi/en/radon-mitigation
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Nuclear material Nuclear materials refers to nuclear materials, which include uranium, plutonium and thorium, as well as other nuclear materials, equipment, installations, data materials and agreements, if they are relevant in terms of the spread ...https://stuk.fi/en/nuclear-materials
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Health effects of radiation Units of measurement: Gray (Gy) Unit of an absorbed dose, indicating how much energy the ionizing radiation gives out to the target substance. 1 Gy = 1 J/kg. Sievert (Sv) A unit of radiation dose indicating the health d...https://stuk.fi/en/health-effects-of-radiation
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Valitse kieli Suomi Välj språket Svenska Select language English STUK’s Finances 2024 In 2024, STUK’s operating expenses were approximately EUR 41 million. Approximately 45% (EUR 18.5 million) of operational funding came from the Government’s budg...https://stuk.fi/en/stuk-s-finances-2024
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Radiation safety of nuclear facilities Control of radiation safety is a part of the supervision of the operating condition of a nuclear power plant. The objective is to ensure that the total radiation exposure caused by the operation of the nuclea...https://stuk.fi/en/radiation-safety-of-nuclear-facilities
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Metrological standards The Radiation and Nuclear Safety Authority (STUK) maintains national metrological standards that enable the reliability of radiation measurements. Metrological standards are, for example, precise measuring devices (ionizatio...https://stuk.fi/en/metrological-activities
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Small modular reactors STUK is preparing for the possibility that there will be desire want to build smaller nuclear power plants with an electricity output of less than 300 megawatts and small nuclear power plants intended solely for heat product...https://stuk.fi/en/small-modular-reactors
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Sustainability and responsibility Sustainable development is a continuous and managed social change taking place globally, regionally and locally, with the goal of securing good living opportunities for current and future generations. This also me...https://stuk.fi/en/sustainability
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How do health care and industry utilize radiation? Radiation is widely used in health care, veterinary medicine and industry. In healthcare, radiation is used to examine and treat people. Some applications of radiation in health care are imaging, ...https://stuk.fi/en/how-do-healthcare-and-industry-utilize-radiation
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Valitse kieli Suomi Välj språket Svenska Select language English Radiation measurement data for 2024 The Radiation and Nuclear Safety Authority (STUK) provides companies and private citizens, among others, with various radiation-related measuremen...https://stuk.fi/en/radiation-measurement-data-for-2024
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Nuclear weapons A nuclear weapon is a bomb whose destructive power is mainly based on the pressure wave and thermal radiation created by the explosion. Another threat is radiation from both radioactive substances released by the explosion and neut...https://stuk.fi/en/nuclear-weapons