Fabrication and Study of a Concave Crystal Mirror for the KORTES Project
- 作者: Akhsakhalyan A.1, Akhsakhalyan A.1, Garakhin S.1, Erkhova N.2, Kirichenko A.2, Kuzin S.2, Salashchenko N.1, Toropov M.1, Chkhalo N.1
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隶属关系:
- Institute for Physics of Microstructures, Russian Academy of Sciences
- Lebedev Physical Institute, Russian Academy of Sciences
- 期: 卷 64, 编号 11 (2019)
- 页面: 1680-1683
- 栏目: Article
- URL: https://journals.rcsi.science/1063-7842/article/view/204559
- DOI: https://doi.org/10.1134/S1063784219110033
- ID: 204559
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详细
A method for fabrication of a concave spherical mirror made of crystalline quartz is proposed and X-ray optical properties of the mirror are studied. The radius of curvature is 1630 mm. The shape of the mirror surface is studied using an interferometer with a diffraction reference wave. In the entire processing region, the maximum deviation from the nearest sphere is about 0.2 μm and the rms is 34 nm, so that high quality of imaging is provided with an angular error of about 2″ (angular seconds). Reflection coefficient (about 7%) and lower bound limit of spectral selectivity (λ/δλ ≈ 1775) are determined in the vicinity of a wavelength of λ = 0.834 nm, which is close to the working wavelengths of the MgXII doublet (λ = 0.8418 and 0.8423 nm). Position of the Bragg peak and spectral selectivity remain unchanged upon bending of the crystal mirror within measurement accuracy.
作者简介
A. Akhsakhalyan
Institute for Physics of Microstructures, Russian Academy of Sciences
编辑信件的主要联系方式.
Email: akh@ipm.sci-nnov.ru
俄罗斯联邦, Nizhny Novgorod, 603950
A. Akhsakhalyan
Institute for Physics of Microstructures, Russian Academy of Sciences
Email: akh@ipm.sci-nnov.ru
俄罗斯联邦, Nizhny Novgorod, 603950
S. Garakhin
Institute for Physics of Microstructures, Russian Academy of Sciences
Email: akh@ipm.sci-nnov.ru
俄罗斯联邦, Nizhny Novgorod, 603950
N. Erkhova
Lebedev Physical Institute, Russian Academy of Sciences
Email: akh@ipm.sci-nnov.ru
俄罗斯联邦, Moscow, 119991
A. Kirichenko
Lebedev Physical Institute, Russian Academy of Sciences
Email: akh@ipm.sci-nnov.ru
俄罗斯联邦, Moscow, 119991
S. Kuzin
Lebedev Physical Institute, Russian Academy of Sciences
Email: akh@ipm.sci-nnov.ru
俄罗斯联邦, Moscow, 119991
N. Salashchenko
Institute for Physics of Microstructures, Russian Academy of Sciences
Email: akh@ipm.sci-nnov.ru
俄罗斯联邦, Nizhny Novgorod, 603950
M. Toropov
Institute for Physics of Microstructures, Russian Academy of Sciences
Email: akh@ipm.sci-nnov.ru
俄罗斯联邦, Nizhny Novgorod, 603950
N. Chkhalo
Institute for Physics of Microstructures, Russian Academy of Sciences
Email: akh@ipm.sci-nnov.ru
俄罗斯联邦, Nizhny Novgorod, 603950