Preliminary studies on the emulation of 14 MeV neutron irradiation in SiC with heavy ions
Preliminary studies on the emulation of 14 MeV neutron irradiation in SiC with heavy ions
复制标题
重离子模拟14 MeV中子辐照SiC的初步研究
DOI：
10.1016/j.fusengdes.2015.06.085
复制
发表时间：
2015-11
期刊：
影响因子：
--
通讯作者：
Peng Zhang
中科院分区：
文献类型：
--
作者：
Daxi Guo;Hang Zang;Chaohui He;Peng Zhang
研究了用离子辐照模拟聚变中子辐照，特别是聚变堆第一壁的可行性。结果表明，能量在300 MeV以下的重离子不能产生与14 MeV重离子相似的加权初级反冲谱Wp(T)。相反，14 MeV中子的加权二次反冲谱Wp(T)位于1，5，10 MeV Si和C离子在SiC中的Wp(T)之间，并与30%10 MeV Si和70%4.8 MeV C离子混合离子辐照的Bragg峰区的Wp(T)很好地匹配，这表明几MeV的离子辐照足以沿其径迹产生损伤区域，损伤分布类似于14 MeV中子辐照时沿初级反冲径迹产生的二次反冲损伤区域之间的损伤分布。结果表明，用小MeV量级的低能重离子模拟聚变中子辐照是可能的。
The feasibility to emulate fusion neutron irradiation, especially for the first wall of fusion reactors, by ion irradiation is studied. It is found that heavy ions with energies up to 300 MeV cannot produce weighted primary recoil spectraWp(T) similar to those of 14 MeV neutrons in SiC. On the contrary, the weighted secondary recoil spectraWs(T) of 14 MeV neutrons lie within the domain among theWp(T) of 1, 5, 10 MeV Si and C ions in SiC, and match well with theWp(T) at the Bragg peak region of mixed ion irradiation with 30% 10 MeV Si and 70% 4.8 MeV C ions in SiC, which indicates that ion irradiation with several MeV is sufficient to produce damaged regions along its track with damage distribution similar to that among the damaged regions produced by secondary recoils along the track of primary recoils in the case of 14 MeV neutron irradiation. The results suggest that it is possible to emulate the fusion neutron irradiation with low energy heavy ions on the order of few MeV.
登录
查看更多内容
影响因子：
1.7
作者：
F. Mota;R. Vila;C. Ortiz;A. García;N. Casal;Á. Ibarra;D. Rapisarda;V. Queral
通讯作者：
F. Mota;R. Vila;C. Ortiz;A. García;N. Casal;Á. Ibarra;D. Rapisarda;V. Queral
影响因子：
3.7
作者：
Gao, F;Weber, WJ
通讯作者：
Weber, WJ
影响因子：
1.7
作者：
T. Ihli;T. K. Basu;L. Giancarli;S. Konishi;S. Malang;F. Najmabadi;S. Nishio;A. Raffray;C. Rao;A. Sagara;Yucheng Wu
通讯作者：
T. Ihli;T. K. Basu;L. Giancarli;S. Konishi;S. Malang;F. Najmabadi;S. Nishio;A. Raffray;C. Rao;A. Sagara;Yucheng Wu
影响因子：
3.1
作者：
Stoller, RE
通讯作者：
Stoller, RE
影响因子：
3.7
作者：
Debelle, A.;Backman, M.;Chaussende, D.
通讯作者：
Chaussende, D.