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Simultaneous irradiation and thermal effects on 16 MeV proton irradiated tungsten samples
Physica Scripta ( IF 2.9 ) Pub Date : 2021-08-30 , DOI: 10.1088/1402-4896/ac1cf3
R Rayaprolu 1 , S Mller 1 , I Spahn 2 , D Hschen 1 , Ch Linsmeier 1
Affiliation  

16 MeV protons have been used to irradiate 300 μm thick macroscopic W samples in a pilot experiment to 0.006 dpa damage dose under low and high temperature scenarios of ∼373 K and ∼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 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.



中文翻译:

对 16 MeV 质子辐照钨样品的同时辐照和热效应

16兆倍电子伏的质子已被用于照射300 μ微米厚宏观W¯¯样品中分别下~373 K和~1223 K,的低温和高温的方案预实验,以0.006 DPA损伤剂量。线性前布拉格区域已用于损坏样品中的电子损失(热量)达到 1.5 MW m -2。高温照射后,W 样品在扫描电子显微镜下发生了再结晶。表面上的压痕测量表明,在低温辐照情况下,再结晶后软化率为 0.6 GPa,而辐照硬化为 0.8 GPa。

更新日期:2021-08-30
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