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  1. OA@INAF
  2. PRODOTTI RICERCA INAF
  3. 3 CONTRIBUTI IN ATTI DI CONVEGNO (Proceedings)
  4. 3.01 Contributi in Atti di convegno
Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/24295
Title: Design and modelisation of ASPIICS optics
Authors: Galy, Camille
FINESCHI, Silvano 
Galano, Damien
Howard, R. A.
Kintziger, C.
Kirschner, V.
Koutchmy, Serge
Lamy, Philippe
Mazzoli, A.
Melich, R.
Mestreau-Garreau, Agnes
Renotte, Etienne
Servaye, J. S.
Stockman, Y.
Thizy, Cedric
Zhukov, Andrei
Issue Date: 2015
Volume: Solar Physics and Space Weather Instrumentation VI
Editors: Fineschi, Silvano; Fennelly, Judy
Series: PROCEEDINGS OF SPIE 
Number: 9604
First Page: 96040B
Abstract: In the framework of development of ASPIICS (Association of Spacecraft for Polarimetric and Imaging Investigation of the Corona of the Sun), the Centre Spatial de Liege is responsible of the optical design of the coronagraph and the optics will be manufactured by TOPTEC. The particularity of this coronagraph is to have an external occulter located 150 m ahead of the first imaging lens. This external occulter is re-imaged on an internal occulter which function is - as in a classical externally occulted Lyot coronagraph - to block the sun light diffracted by the external occulter and to reduce the straylight on the detector. The selection of this configuration is driven by the requirement to observe the corona as close as possible to the solar limb (i.e. 1 R<SUB>Sun</SUB>) without imaging the limb itself. A requirement of 1.08 R<SUB>Sun</SUB> is specified at optical design level to grant 1.2 R<SUB>sun</SUB> at instrument level. The coronograph instrument is designed to have a field of view of 1.6° x 1.6° with a resolution of less than 6 arcsec. Its performances are limited by diffraction in a 530 - 590 nm wavelength range. This paper presents the optical design and demonstrates that by design the requirements are fulfilled within the misalignment, manufacturing and thermo-elastic error contributions.
Conference Name: Solar Physics and Space Weather Instrumentation VI
Conference Place: San Diego, CA, USA
Conference Date: 9-13 August, 2015
URI: http://hdl.handle.net/20.500.12386/24295
URL: https://www.spiedigitallibrary.org/conference-proceedings-of-spie/9604/96040B/Design-and-modelisation-of-ASPIICS-optics/10.1117/12.2188404.short
ISSN: 0277-786X
ISBN: 9781628417708
DOI: 10.1117/12.2188404
Bibcode ADS: 2015SPIE.9604E..0BG
Fulltext: open
Appears in Collections:3.01 Contributi in Atti di convegno

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