| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2024-05-23 |
| タイトル |
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タイトル |
Bidirectional reflectance distribution function of recrystallized tungsten mono-block exposed to cyclic heat loading |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
Hiroki Natsume
Nojiri Kunpei
Shin Kajita
Fukuda Makoto
Ushiki Tomohiko
Hirohiko Tanaka
Sugie Tatsuo
Kitazawa Sin-iti
Kikuchi Takanori
Yokozuka Tomohiro
Noriyasu Ohno
Ezato Koichiro
Hatae Takaki
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
The bidirectional reflectance distribution function (BRDF) of recrystallized tungsten mono-blocks exposed to cyclic heat loading for ITER divertor outer vertical target was measured using a goniophotometer at a wavelength of 473 nm. Laser microscope observations revealed that the surface roughness of the mono-block increased by an order of magnitude after cyclic heat loads of approximately 20 MWm?2. Furthermore, the overall values of BRDF decreased with an increase in cyclic heat loading. A comparison between the modeled and measured BRDFs showed that an additional Lambertian component is necessary to a specular function (microfacet model or Gaussian function) to fit the measured BRDFs when the surface of the mono-blocks becomes rough. |
| 書誌情報 |
Nuclear Materials and Energy
巻 33,
p. 101243,
発行日 2022-09
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| 出版者 |
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出版者 |
Elsevier |
| ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
2352-1791 |
| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
10.1016/j.nme.2022.101243 |
