Tritium retention characteristics in dust particles in JET with ITER-like wall
Tritium retention characteristics in dust particles in JET with ITER-like wall
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DOI：
10.1016/j.nme.2018.11.001
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发表时间：
2018-12-01
影响因子：
2.6
通讯作者：
Zychor, I.
中科院分区：
文献类型：
--
作者：
Otsuka, T.;Masuzaki, S.;Zychor, I.
在2011-2012年的第一次运动之后，应用氚成像板技术（TIPT）结合电子探针显微分析（EPMA）来检测具有iter样壁的欧洲联合环面（JET-ILW）收集的单个尘埃颗粒中的氚(T)保留特性。发现了大量碳(C)为主的粉尘颗粒，这些颗粒可能是JET-C中预先存在的碳沉积或JET-ILW中剩余碳纤维部件释放的碳颗粒。大部分T保留在以c为主的粉尘颗粒的表面和/或内部。钨、铍和其他金属为主的粉尘颗粒的截留量比镉为主的粉尘颗粒低10-100倍。
A tritium imaging plate technique (TIPT) in combination with an electron-probe microscopic analysis (EPMA) were applied to examine tritium (T) retention characteristics in individual dust particles collected in the Joint European Torus with the ITER-like Wall (JET-ILW) after the first campaign in 2011-2012.A lot of carbon (C)-dominated dust particles were found, which would be pre-existing carbon deposits in the JET-C or released carbon particles from the remaining carbon-fiber components in the JET-ILW. Most of T was retained at the surface of and/or in the C-dominated dust particles. The retention in tungsten, beryllium and other metal-dominated dust particles is relatively lower by a factor of 10-100 in comparison with that in the Cdominated particles.