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Effect of periodic deuterium ion irradiation on deuterium retention and blistering in Tungsten
The effect of periodic irradiation on Deuterium (D) retention and blistering in Tungsten (W) was investigated. W samples were exposed to D plasma at a fixed fluence while varying the irradiation cycle number (1-shot, 2-shots and 3-shots). Exposure energy and flux were ∼50eV and ∼1 ×1022 D m−2 s−1, respectively. Sample temperatures were 537K and 643K. At 573K, D retention and blister density decreased with increasing number of irradiation cycle. In contrast at 643K, D retention showed no dependence on number of irradiation cycle. Therefore, sample temperature during irradiation is an important parameter in comparing the results of continuous and periodic irradiation, especially in studies involving extremely-high-flux (>1024 D m−2 s−1) irradiation and fluence dependency of D retention. Keywords: Tungsten, Hydrogen isotope retention, Blistering, Divertor, TDS
Effect of periodic deuterium ion irradiation on deuterium retention and blistering in Tungsten
The effect of periodic irradiation on Deuterium (D) retention and blistering in Tungsten (W) was investigated. W samples were exposed to D plasma at a fixed fluence while varying the irradiation cycle number (1-shot, 2-shots and 3-shots). Exposure energy and flux were ∼50eV and ∼1 ×1022 D m−2 s−1, respectively. Sample temperatures were 537K and 643K. At 573K, D retention and blister density decreased with increasing number of irradiation cycle. In contrast at 643K, D retention showed no dependence on number of irradiation cycle. Therefore, sample temperature during irradiation is an important parameter in comparing the results of continuous and periodic irradiation, especially in studies involving extremely-high-flux (>1024 D m−2 s−1) irradiation and fluence dependency of D retention. Keywords: Tungsten, Hydrogen isotope retention, Blistering, Divertor, TDS
Effect of periodic deuterium ion irradiation on deuterium retention and blistering in Tungsten
M. Oya (author) / H.T. Lee (author) / A. Hara (author) / K. Ibano (author) / M. Oyaidzu (author) / T. Hayashi (author) / Y. Ueda (author)
2017
Article (Journal)
Electronic Resource
Unknown
Metadata by DOAJ is licensed under CC BY-SA 1.0
| Elsevier | 2023
Effect of initial exposure temperature on the deuterium retention and surface blistering in tungsten
| DOAJ | 2022