【摘 要】
：
The Reduces Activation Ferritic/Martensitic(RAFM)steel is considered as the primary candidate structural material for demonstration plant(DEMO)and the first fusion plant,and widely studied in the worl
【机 构】
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Key Laboratory of Neutronics and Radiation Safety,Institute of Nuclear Energy Safety Technology,Chin
【出 处】
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第13届中日双边先进能源系统和聚变裂变工程材料会议(CIS-13)
论文部分内容阅读
The Reduces Activation Ferritic/Martensitic(RAFM)steel is considered as the primary candidate structural material for demonstration plant(DEMO)and the first fusion plant,and widely studied in the world.China low activation martensitic steel(CLAM)is being developed in Institute of Nuclear Energy Safety Technology,Chinese Academy of Sciences,under wide collaboration with many other domestic and foreign institutes and universities.Tungsten,tantalum and vanadium were used to replace molybdenum,niobium and nickel in the composition design of CLAM,to reduce long life activation products.Quantitative measurement of short life and medium life activation products of CLAM and two kinds of contrast material was taken by a Hp-Ge spectrometer 4 days after irradiation in the rabbit irradiation tube of Xian Pulsed Reactor(XAPR).The irradiation dose was 2.5E16n/cm2 in 30 minutes.The rabbit irradiation tube had a pneumatic transmission device with time control precision less than one second.The analysis of residual radioactivity decay curve and radioactivity contribution indicated that the residual radioactivity of CLAM is significantly lower than that of 316LN and 316Ti between 8 days to 100 days after irradiation.
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