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Proceedings Paper

New UV detectors for solar observations
Author(s): Jean-Francois E. Hochedez; Udo H. Schuehle; Jose L. Pau; Jose Alvarez; Olivier Hainaut; Thierry P. Appourchaux; F. D. Auret; Andrei Belsky; Philippe Bergonzo; M. C. Castex; A. Deneuville; Pierre Dhez; Bernhard Fleck; Ken Haenen; Mourad Idir; Jean Paul Kleider; Elie Lefeuvre; Philippe Lemaire; E. Monroy; P. Muret; Elias Munoz; Milos Nesladek; Franck Omnes; Emanuele Pace; Anthony J. Peacock; Chris A. Van Hoof
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Paper Abstract

BOLD (Blind to the Optical Light Detectors) is an international initiative dedicated to the development of novel imaging detectors for UV solar observations. It relies on the properties of wide bandgap materials (in particular diamond and Al-Ga-nitrides). The investigation is proposed in view of the Solar Orbiter (S.O.) UV instruments, for which the expected benefits of the new sensors -primarily visible blindness and radiation hardness- will be highly valuable. Despite various advances in the technology of imaging detectors over the last decades, the present UV imagers based on silicon CCDs or microchannel plates exhibit limitations inherent to their actual material and technology. Yet, the utmost spatial resolution, fast temporal cadence, sensitivity, and photometric accuracy will be decisive for the forthcoming solar space missions. The advent of imagers based on wide-bandgap materials will permit new observations and, by simplifying their design, cheaper instruments. As for the Solar Orbiter, the aspiration for wide-bandgap material (WBGM) based UV detectors is still more sensible because the spacecraft will approach the Sun where the heat and the radiation fluxes are high. We describe the motivations, and present the program to achieve revolutionary flight cameras within the Solar Orbiter schedule as well as relevant UV measurements.

Paper Details

Date Published: 11 February 2003
PDF: 8 pages
Proc. SPIE 4853, Innovative Telescopes and Instrumentation for Solar Astrophysics, (11 February 2003); doi: 10.1117/12.460367
Show Author Affiliations
Jean-Francois E. Hochedez, Royal Observatory of Belgium (Belgium)
Udo H. Schuehle, Max-Planck-Institut fuer Aeronomie (Germany)
Jose L. Pau, Univ. Politecnica de Madrid (Spain)
Jose Alvarez, Lab. de Genie Electrique de Paris (France)
Olivier Hainaut, Institut d'Astrophysique Spatiale (France)
Thierry P. Appourchaux, European Space Agency/ESTEC (Netherlands)
F. D. Auret, Univ. of Pretoria (South Africa)
Andrei Belsky, Ctr. Lasers Intense et Applications (France)
Philippe Bergonzo, CEA-LIST (LETI) Saclay (France)
M. C. Castex, Lab. de Physique de Laser Villetanneuse (France)
A. Deneuville, Lab. d'Etudes des Proprietes Electroniques des Solides (France)
Pierre Dhez, LURE (France)
LIXAM (France)
Bernhard Fleck, NASA Goddard Space Flight Ctr. (United States)
Ken Haenen, Institute for Material Research (Belgium)
Mourad Idir, LURE (France)
LIXAM (France)
Jean Paul Kleider, Lab. de Genie Electrique de Paris (France)
Elie Lefeuvre, Lab. de Physique de Laser Villetanneuse (France)
Philippe Lemaire, Institut d'Astrophysique Spatiale (France)
E. Monroy, Univ. Politecnica de Madrid (Spain)
P. Muret, Lab. d'Etudes des Proprietes Electroniniques des Solides (France)
Elias Munoz, Univ. Politecnica de Madrid (Spain)
Milos Nesladek, Institute for Material Research (Belgium)
Franck Omnes, CRHEA/CNRS (France)
Emanuele Pace, Univ. degli Studi di Firenze (Italy)
Anthony J. Peacock, European Space Agency/ESTEC (Netherlands)
Chris A. Van Hoof, IMEC (Belgium)

Published in SPIE Proceedings Vol. 4853:
Innovative Telescopes and Instrumentation for Solar Astrophysics
Stephen L. Keil; Sergey V. Avakyan, Editor(s)

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