Simultaneous irradiation and thermal effects on 16 MeV proton irradiated tungsten samples

被引：0
作者：
Rayaprolu, R. [1 ]
Moeller, S. [1 ]
Spahn, I [2 ]
Hoschen, D. [1 ]
Linsmeier, Ch [1 ]
机构：
[1] Forschungszentrum Julich, Inst Energie & Klimaforsch Plasma Phys, D-52425 Julich, Germany
[2] Forschungszentrum Julich, Inst Neurowissensch & Med Nukl Chem, D-52425 Julich, Germany
来源：
PHYSICA SCRIPTA | 2021年 / 96卷 / 12期
关键词：
tungsten; fusion; neutron irradiation; proton irradiation; hardness; transmutation; RADIATION-DAMAGE; FUSION MATERIALS; ION IRRADIATION; NEUTRON; SIMULATION;
D O I：
10.1088/1402-4896/ac1cf3
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
16 MeV protons have been used to irradiate 300 mu m thick macroscopic W samples in a pilot experiment to 0.006 dpa damage dose under low and high temperature scenarios of similar to 373 K and similar to 1223 K, respectively. The linear pre-Bragg region has been used for damage where the electronic loss (heat) in the sample amounts to 1.5 MW center dot m(-2). Post high-temperature irradiation, the W sample has been recrystallized as seen under the scanning electron microscope. Indentation measurements on the surface show a softening of 0.6 GPa post-recrystallization against an irradiation hardening of 0.8 GPa for the low-temperature irradiation scenario.
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页数：7
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