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Fabrication and Study of a Concave Crystal Mirror for the KORTES Projectстатья
Информация о цитировании статьи получена из
Scopus,
Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 20 декабря 2019 г.
- Авторы: Akhsakhalyan A.A., Akhsakhalyan A.D., Garakhin S.A., Erkhova N.F., Kirichenko A.S., Kuzin S.V., Salashchenko N.N., Toropov M.N., Chkhalo N.I.
- Журнал: Technical Physics
- Том: 64
- Номер: 11
- Год издания: 2019
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 1680
- Последняя страница: 1683
- DOI: 10.1134/S1063784219110033
- Аннотация: Abstract: 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. © 2019, Pleiades Publishing, Ltd.
- Добавил в систему: Кириченко Алексей Сергеевич