Flibe use in fusion reactors -- An initial safety assessment
Flibe use in fusion reactors -- An initial safety assessment
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Flibe 在聚变反应堆中的应用——初步安全评估
DOI：
10.2172/752080
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
G. Longhurst
中科院分区：
文献类型：
--
作者：
L. Cadwallader;G. Longhurst
本报告是识别和评估与使用Flibe（LiF-BeF{sub 2}）作为核聚变发电厂应用的熔盐冷却剂相关的安全问题的初步努力。简要回顾了Flibe在熔盐堆实验中的经验。确定的安全问题包括化学毒性、中子活化引起的放射性问题以及处理高温冷却剂的操作问题。铍化合物和氟引起毒理学关注。一些控制措施，以保护工人进行了讨论。由于Flibe已在其他应用中安全处理，其危害似乎是可控的。指出了一些需要进一步研究的安全问题。应研究盐与强磁场的相互作用。Flibe组分和活化产物在高温下的演变（即，氟是作为气体释放还是保留在熔盐中）是一个问题。需要对Flibe泄漏的气溶胶和氚释放进行研究，也需要进行中子学分析来确定放射性剂量。氚从Flibe迁移到冷却系统也是一个安全问题。对这些问题的调查将有助于确定Flibe作为聚变发电厂冷却剂或面向等离子体材料的前景。
This report is an initial effort to identify and evaluate safety issues associated with the use of Flibe (LiF-BeF{sub 2}) as a molten salt coolant for nuclear fusion power plant applications. Flibe experience in the Molten Salt Reactor Experiment is briefly reviewed. Safety issues identified include chemical toxicity, radiological issues resulting from neutron activation, and the operational concerns of handling a high temperature coolant. Beryllium compounds and fluorine pose be toxicological concerns. Some controls to protect workers are discussed. Since Flibe has been handled safely in other applications, its hazards appear to be manageable. Some safety issues that require further study are pointed out. Flibe salt interaction with strong magnetic fields should be investigated. Evolution of Flibe constituents and activation products at high temperature (i.e., will Fluorine release as a gas or remain in the molten salt) is an issue. Aerosol and tritium release from a Flibe spill requires study, as does neutronics analysis to characterize radiological doses. Tritium migration from Flibe into the cooling system is also a safety concern. Investigation of these issues will help determine the extent to which Flibe shows promise as a fusion power plant coolant or plasma-facing material.