Optical Properties of Thomson Scattering Diagnostics Lower Window Glass under Laser Irradiation
文献类型：期刊论文
| 作者 | Zhou, Jian1,2; Zang, Qing2 ; Zhao, Junyu2; Xiao, Shumei2; Che, Yong2; Ren, Mengfang2
|
| 刊名 | MATERIALS
 |
| 出版日期 | 2021-06-01 |
| 卷号 | 14 |
| 关键词 | Thomson scattering laser irradiation glass transmittance |
| DOI | 10.3390/ma14112702 |
| 通讯作者 | Zang, Qing(zangq@ipp.ac.cn) |
| 英文摘要 | Tokamak diagnostic window glass is an indispensable optical medium in fusion research. The transmittance of the device affects the optical performance and accuracy of the diagnostic system. Especially, the window glass serves as the entrance of the light source while performing the sealing function for the active diagnosis method represented by Thomson scattering diagnostics. In this work, we studied the influence of the laser irradiation and tokamak discharge on the EAST (Experimental Advanced Superconducting Tokamak) Thomson scattering diagnostic borosilicate glass window. Using X-ray photoelectron spectroscopy (XPS) and Raman scattering, we found that carbon-based impurities in the device aggravated the film damage due to laser irradiation, reducing the performance of the coating of the glass. Besides, the laser and the various rays of tokamak discharge generated many point defects in the glass, increasing the light absorption of the glass. These two factors caused the glass transmittance to drop significantly (from 99.99% to 77.62%). In addition, the long-term laser irradiation primarily reduced the transmittance, while environmental rays had a minor impact on the same. This work provides valuable insights into the selection and effective use of glass in optics-based diagnostics. |
| WOS关键词 | INDUCED DAMAGE ; RADIATION |
| 资助项目 | National Key R and D Program of China[2017YFE0301105] |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000661617500001 |
| 出版者 | MDPI |
| 资助机构 | National Key R and D Program of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/123790]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Zang, Qing |
| 作者单位 | 1.Anhui Jianzhu Univ, Sch Mat & Chem Engn, Hefei 230601, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Jian,Zang, Qing,Zhao, Junyu,et al. Optical Properties of Thomson Scattering Diagnostics Lower Window Glass under Laser Irradiation[J]. MATERIALS,2021,14. |
| APA | Zhou, Jian,Zang, Qing,Zhao, Junyu,Xiao, Shumei,Che, Yong,&Ren, Mengfang.(2021).Optical Properties of Thomson Scattering Diagnostics Lower Window Glass under Laser Irradiation.MATERIALS,14. |
| MLA | Zhou, Jian,et al."Optical Properties of Thomson Scattering Diagnostics Lower Window Glass under Laser Irradiation".MATERIALS 14(2021). |
入库方式： OAI收割
来源：合肥物质科学研究院
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