An optimized B/Ir supermirror for Einstein Probe focusing mirrors in x-ray region of above 8 keV
| Autor: | H D Wang, J R Ma, Jing-Bin Lu, Zhixian Liu, Situ Zirui, Zhen Ren, Qingyang Li, Yuxuan Zhu, Yanji Yang, Yong Chen, Yupeng Xu |
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| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Physica Scripta. 98:065519 |
| ISSN: | 1402-4896 0031-8949 |
| DOI: | 10.1088/1402-4896/acd486 |
| Popis: | The Einstein Probe (EP) focusing mirrors is a main load to focus and image x-rays. A single-layer which adopts Nickel substrates and Gold reflective coatings has been used for the EP focusing mirrors and has excellent performance below 8 keV. It is a possibility to enhance the effective area of higher x-ray regions by using the multilayer design. The multilayer with single block is designed and has excellent reflectance at specific x-ray energies above 8 keV. 54 multilayers are used for all mirror shells with different incident angles. The optimized B/Ir supermirror design for focusing mirrors with short focal length shows an effective area of up to 152 cm2 in 9 keV. And, the method can be used to design supermirror for higher x-ray regions, which will achieve hard x-ray detection with short focal length focusing mirrors and small hard x-ray detection satellite. |
| Databáze: | OpenAIRE |
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