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中国科技大学国家同步辐射实验室,合肥,230029
Published:01 October 2000
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[1]蒋迪奎,吴冠原,赵飞云,孙葆根,董赛.合肥光源束测元件钎焊焊缝辐射腐蚀的研究[J].核技术,2000(10):713-717.
JIANG Dikui WU Guanyuan ZHAO Feiyun SUN Baogen DONG Sai. Radiation corrosion of braze weld for BCM in HLS[J]. Nuclear techniques, 2000, (10): 713-717.
在合肥光源直线加速器和输运线的辐射环境中,束测元件的陶瓷封接钎焊焊缝被严重腐蚀而漏气。用X射线衍射仪对腐蚀生成物进行了物相分析,发现是Fe2F5·7H2O、CuF2·2H2O、CuF2等氟化盐。它们是辐射环境中的聚四氟乙烯降解释放的氟离子与焊缝处气体离子和金属离子反应的化合物。
Corrosion and leak happened at brazing of a beam current monitor(BCM ) under the radiation environment of linac and transport line. Corrosion products were analyzed with a rotating anode X- ray diffractometer
and Fe2F5. 7H2O
CuF2. 2H2O and CuF2 were indentified. They are believed to be the compounds of gas and metal ions at brazing with F-from Teflon that is decomposed by radiation.
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