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Proceedings Article

The imaging magnetograph eXperiment for the SUNRISE balloon Antarctica project

[+] Author Affiliations
Valentin Martinez Pillet, Jose A. Bonet, Manuel V. Collados, Lieselotte Jochum, S. Mathew, J.L. Medina Trujillo, B. Ruiz Cobo

Instituto de Astrofisica de Canarias (Spain)

Jose Carlos del Toro Iniesta, A.C. Lopez Jimenez, J. Castillo Lorenzo, M. Herranz, J.M. Jeronimo, P. Mellado, R. Morales, J. Rodriguez

Instituto de Astrofisica de Andalucia, CSIS (Spain)

Alberto Alvarez-Herrero, Tomas Belenguer, R.L. Heredero, M. Menendez, G. Ramos, Manuel Reina, C. Pastor, A. Sanchez, J. Villanueva

Instituto Nacional de Tecnica Aeroespacial (Spain)

Vicente Domingo, J.L. Gasent, P. Rodriguez

Univ. de Valencia (Spain)

Proc. SPIE 5487, Optical, Infrared, and Millimeter Space Telescopes, 1152 (October 12, 2004); doi:10.1117/12.549020
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From Conference Volume 5487

  • Optical, Infrared, and Millimeter Space Telescopes
  • John C. Mather
  • USA | June 21, 2004

abstract

The SUNRISE balloon project is a high-resolution mission to study solar magnetic fields able to resolve the critical scale of 100 km in the solar photosphere, or about one photon mean free path. The Imaging Magnetograph eXperiment (IMaX) is one of the three instruments that will fly in the balloon and will receive light from the 1m aperture telescope of the mission. IMaX should take advantage of the 15 days of uninterrupted solar observations and the exceptional resolution to help clarifying our understanding of the small-scale magnetic concentrations that pervade the solar surface. For this, IMaX should act as a diffraction limited imager able to carry out spectroscopic analysis with resolutions in the 50.000-100.000 range and capable to perform polarization measurements. The solutions adopted by the project to achieve all these three demanding goals are explained in this article. They include the use of Liquid Crystal Variable Retarders for the polarization modulation, one LiNbO3 etalon in double pass and two modern CCD detectors that allow for the application of phase diversity techniques by slightly changing the focus of one of the CCDs.

© (2004) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Valentin Martinez Pillet ; Jose A. Bonet ; Manuel V. Collados ; Lieselotte Jochum ; S. Mathew, et al.
"The imaging magnetograph eXperiment for the SUNRISE balloon Antarctica project", Proc. SPIE 5487, Optical, Infrared, and Millimeter Space Telescopes, 1152 (October 12, 2004); doi:10.1117/12.549020; http://dx.doi.org/10.1117/12.549020


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