Grazing-incidence telescope-spectrograph for space solar imaging spectroscopy (Articolo in rivista)

Type
Label
  • Grazing-incidence telescope-spectrograph for space solar imaging spectroscopy (Articolo in rivista) (literal)
Anno
  • 2001-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1364/AO.40.002778 (literal)
Alternative label
  • L. Poletto, G. Tondello (2001)
    Grazing-incidence telescope-spectrograph for space solar imaging spectroscopy
    in Applied optics-OT
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • L. Poletto, G. Tondello (literal)
Pagina inizio
  • 2778 (literal)
Pagina fine
  • 2787 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 40 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Univ Padua, INFM, Ist Nazl Fis Mat, Dept Elect & Informat, Via Gradenigo 6-A, I-35131 Padua, Italy. CNR-Istituto di Fotonica e Nanotecnologie (literal)
Titolo
  • Grazing-incidence telescope-spectrograph for space solar imaging spectroscopy (literal)
Abstract
  • The design of a stigmatic grazing-incidence instrument for space applications to solar-imaging spectroscopy is presented. It consists of a double telescope and a spectrograph: Telescope I consists of a single cylindrical mirror with parabolic section, focusing the radiation on the entrance slit of the spectrograph in the spectral dispersion plane; telescope II consists of two cylindrical mirrors with aspherical section in a Welter configuration, focusing the radiation on the spectrograph focal plane in the direction perpendicular to the spectral dispersion plane. The spectrograph consists of a grazing-incidence spherical variable-line-spaced grating with flat-field properties. Telescope II is crossed with respect to the grating and telescope I; i.e., it is mounted with its tangential planes coincident with the grating equatorial plane. The spectrum is acquired by a detector mounted at near-normal incidence with respect to the direction of the exit beam. The spectral resolution is also preserved for off-axis angles. The effective collecting area of the instrument can be preserved by adoption of a nested configuration for telescope II without degradation of the spectral resolution. (literal)
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