Study on production process of nickel-based x-ray grazing reflector

Shulei Cao; Tao Ma

doi:10.1117/12.2542205

18 December 2019 Study on production process of nickel-based x-ray grazing reflector

Shulei Cao, Tao Ma

Proceedings Volume 11341, AOPC 2019: Space Optics, Telescopes, and Instrumentation; 113410M (2019) https://doi.org/10.1117/12.2542205
Event: Applied Optics and Photonics China (AOPC2019), 2019, Beijing, China

Abstract

According to the quality requirements of the nickel-phosphorus alloy coating in the soft X-ray grazing incidence cylindrical mirror, the purpose of this article is to introduce the method of chemically depositing nickel, which belongs to the mold replication method, to produce a super-smooth optical mirror. A nickel-phosphorus alloy layer was plated on an aluminum substrate, and then was fabricated into a super smooth surface by the single point diamond turning process and the fine polishing process. Then, a gold film was coated on the preformed nickel-phosphorus alloy layer. Another nickelphosphorus alloy was deposited on the gold film layer with better adhesion strength by an adapted the nickel deposited process. Then the outer layer of nickel-phosphorus alloy was demolded with the gold film. The target thickness of the deposited nickel-phosphorus alloys is 250±25 microns by the process described in this paper, which is different from the traditional method. The main formulation of the chemically deposited nickel-phosphorus alloy includes NiSO₄·6(H₂O), NaH₂PO₂·H₂O, C₆H₈O₇, CH₃COONa. The testing results of the nickel-phosphorus alloy sheets was shown that the bonding force, corrosion resistance, porosity and other parameters were in line with the requirements for mirror production.

Citation Download Citation

Shulei Cao and Tao Ma "Study on production process of nickel-based x-ray grazing reflector", Proc. SPIE 11341, AOPC 2019: Space Optics, Telescopes, and Instrumentation, 113410M (18 December 2019); https://doi.org/10.1117/12.2542205

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KEYWORDS

Mirrors

X-rays

Grazing incidence

Nickel

Metals

Reflectors

X-ray optics

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