The International Fusion Materials Irradiation Facility (IFMIF) is aimed to provide an intense neutron source by a high current deuteron linear accelerator and a high speed lithium flow target for testing candidate materials for fusion. Liquid lithium is being circulated through a loop and is kept at a temperature above its freezing point. In the frame of the design phase called Key Element technology Phase (KEP), jointly performed by an international team to verify the most important risk factors, safety assessment of lithium target has been required in order to identify the hazards associated with the lithium loop operation. This paper discusses the safety assessments that were performed and their outcome. The assessment tasks were, first of all, a literature review of lithium hazards followed by the Failure Mode and Effect Analysis (FMEA) of the target system. Main conclusions of the study are that hazards are confined within the IFMIF security boundaries and there is negligible risk to the public from operating the lithium target.
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