Experiment and measurement with high-energy helium irradiation to tungsten using tandem accelerator for divertor in magnetic confinement fusion system. (December 2017)

• Record Type: Journal Article
• Authors: Uchida, Yuki; Saito, Seiki; Saito, Nobuo; Suzuki, Tsuneo; Takahashi, Kazumasa; Sasaki, Toru; kikuchi, Takashi; Harada, Nob.
• Is Part Of: Energy procedia. Volume 131(2017)
• Page Start: 359
• Page End: 362
• Publication Date: 2017-12
• Subjects: Magnetic confinement fusion -- Tungsten -- Divertor -- Helium bubble -- Tandem accelerator; Power resources -- Congresses; Power resources -- Periodicals; Power resources; Conference proceedings; Periodicals; 333.7905
• DOI: 10.1016/j.egypro.2017.09.474
• Languages: English
• ISSNs: 1876-6102

Abstract

Abstract: An experimental system for irradiating high-energy (4 MeV) helium beam was developed to investigate irradiation damage of tungsten by using tandem accelerator. In this system, particle fluence to a tungsten thin plate was achieved to 10 22 ions/m 2 . Electron diffraction images were acquired for damaged tungsten using a transmission electron microscope (TEM) to measure the particle loading by helium irradiation. Crystal structure was qualitatively changed between helium irradiated area and non-irradiated area from diffraction patterns.