Showing 3383 hits for ””
-
2020:07 Fibre Clogging in Nuclear Power Plants
SSM perspective Background Emergency core cooling systems in boiling- and pressurized water reactors use strainers. Their purpose is to out foreign material suspended in the cooling water so this material does not reach the reactor. After the 1992 event at Barsebäck nuclear power plant when the strainers of the emergency cooling system was clogged due to fibers in the cooling water, all...
Content type: Publications -
2021:06 Quality Assurance Review of the Swedish Nuclear Fuel and Waste Management Company’s LOT Experiment (Phase S2 and A3) at the Äspö Facility in Sweden
SSM perspective Background This report presents a quality assurance (QA) review of the work done by SKB to retrieve the S2 and A3 parcels from the Long term test of buffer material (the LOT experiment) at the Äspö Hard Rock Laboratory. Each LOT parcel comprises a heated copper tube surrounded by bentonite, with a number of copper coupons and various other test and monitoring instruments...
Content type: Publications -
2017:20 Assessment of inertia effects on transient clad-to-coolant heat transfer and coolant flow under reactivity initiated accidents
In this report, simple hydrodynamic models are used for studying the effects of coolant inertia on fuel-to-coolant heat transfer and coolant flow under reactivity initiated accidents in light water reactors. The objective is to assess if the inertia effects are important enough to warrant modification of QT-COOL, a coolant channel module for two-phase flow that has recently been implemented as...
Content type: Publications -
2023:05e Radiological Consequences of Fallout from Nuclear Explosions
Summary In this report, Strålsäkerhetsmyndigheten, the Swedish Radiation Safety Authority (SSM), presents an analysis of the potential radiological consequences of fallout from the nuclear explosions at distances between about 10 kilometres and about 300 kilometres from the explosion, and the effect of various protective actions. The contents of the report constitute a knowledge base...
Content type: Publications -
2023:10 General data in accordance with the requirements in Article 37 of the Euratom Treaty
Oskarshamn Very Low-level Radioactive Waste Disposal Facility, MLA3, Sweden...
-
2025:01 Safety Concept Evaluation with Failure Tolerance Analysis
SSM perspective Background One of the most important design principles to achieve high safety function dependability is the use of redundancy to be single-fault tolerant. In turn, redundancies become effective by applying additional design principles such as physical and functional separation and diversity. License holders of nuclear power reactors must demonstrate that requirements are met,...
Content type: Publications -
01:2024 01:2024 Overview of radon management in the Nordic countries
Report from working group Nordic-Nat...
Content type: Publications -
03:2024 Radon dose conversion coefficients and their use in the Nordic countries
Report, Nordic-Nat...
Content type: Publications -
Radiation protection for personnel
Licensees of Swedish nuclear power plants are responsible for ensuring that no one is exposed to radiation levels that cause injury. The licensees must also guarantee that all workers at the facilities are exposed to as little radiation as possible viewed over an extended period of time. This implies that the level of safety must be high enough so that no accidents occur exposing the personnel...
Content type: Regular Pages -
SSMFS 2008:1 The Swedish Radiation Safety Authority’s Regulations concerning Safety in Nuclear Facilities
SSMFS 2010:3 is only available in Swedish. The latest consolidated version of the regulation with amendments made up to and including SSMFS 2018:12 is only available in Swedish. SSM English SSMFS 2010:3 is only available in Swedish. The latest consolidated version of the regulation with amendments made up to and including SSMFS 2018:12 is only available in Swedish.
Content type: Publications