Experimental investigation of the IFMIF target mock-up
Experimental investigation of the IFMIF target mock-up
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IFMIF目标模型的实验研究
DOI：
10.1016/j.jnucmat.2008.12.257
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
H. Nakamura
中科院分区：
文献类型：
--
作者：
N. Loginov;A. Mikheyev;V. A. Morozov;Y. Aksenov;M. Arnol’dov;L. Berensky;V. Fedotovsky;V. Chernov;H. Nakamura
国际聚变材料辐照设施（IFMIF）的锂中子靶模型已在俄罗斯IPPE的水和锂试验设施建造和测试。两个实体模型中的喷射速度均高达20 m/s。计算和实验表明，锂流动不稳定性的直和凹部的连接点的实体后壁。测量了整个模型宽度、射流厚度和波高的水流速度分布。观察到在模型侧壁附近的水和锂射流的厚度显著增加。研究了喷嘴出口段形状对射流稳定性的影响。研究了锂从射流自由表面的蒸发以及锂在靶模型的真空管壁上的沉积。结果表明，这些现象是不是很关键的目标效率。用铝吸气剂使锂的回收率降低到2 ppm（要求10 ppm）是可能的。测试了两种类型的冷阱和杂质堵塞指示器。结果在文件中。
The international fusion materials irradiation facility (IFMIF) lithium neutron target mock-ups have been constructed and tested at water and lithium test facilities in the IPPE of Russia. Jet velocity in both mock-ups was up to 20m/s. Calculations and experiments showed lithium flow instability at conjunction point of straight and concave sections of the mock-up back wall. Water velocity profile across the mock-up width, jet thickness, and wave height were measured. The significant increase of thickness of both water and lithium jets near the mock-up sidewalls was observed. The influence of shape of the nozzle outlet part on jet stability was investigated. Lithium evaporation from the jet free surface was investigated as well as lithium deposition on vacuum pipe walls of the target mock-up. It was shown that these phenomena are not very critical for the target efficiency. The possibility of lithium denitration down to 2ppm (at 10ppm requested) by means of aluminium getter was shown. Two types of cold traps and plug indicators of impurities were tested. The results are presented in the paper.