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EUV telescope for a Cubesat nanosatelliteстатья
- Авторы: Kuzin Sergey, Bogachev Sergey, Pertsov Andrey, Loboda Ivan, Chervinsky Viktor, Chkhalo Nikolay, Lopatin Alexey, Malyshev Ilya, Pestov Alexey, Pleshkov Roman, Polkovnikov Vladimir, Toropov Michael, Tsybin Nikolay, Zuev Sergey
- Журнал: Applied optics
- Том: 62
- Номер: 31
- Год издания: 2023
- Издательство: Optical Society of America
- Местоположение издательства: United States
- Первая страница: 8462
- Последняя страница: 8462
- DOI: 10.1364/ao.501437
- Аннотация: This paper describes in detail a compact (2U format) telescope operating in the extreme ultraviolet range for studying the solar corona at a wavelength of 17.14 nm. The telescope objective has been built according to the Ritchey–Chrétien scheme with the following parameters: effective focal length of 381.3 mm, field of view of 2×2∘, and angular resolution of 11 in. Reflective multilayer Al/Be coatings were used, having 55% reflectance and a 0.4 nm spectral bandwidth. The wavefront rms error is 30 nm. An interferometric technique for controlling the shapes of the substrates and for adjusting the optical system and detector of the telescope assembly is described in detail.
- Добавил в систему: Богомазов Алексей Иванович