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Experimental Astronomy

, Volume 4, Issue 3–4, pp 195–211 | Cite as

Internal calibration device for the infrared imager of ISO

  • O. SAINT-PÉ
  • P. PUGET
  • D. ROUAN
  • G. EPSTEIN
  • M. COMBES
Article
  • 32 Downloads

Abstract

The imager of the infrared satellite ISO will allow spectral imaging under very low flux conditions in the two to-eighteen-microns range, close to the fundamental limit of the zodiacal background photon noise. To optimize the performance of the imager, we must use an internal calibration device, mainly to track changes in the responsivity of the pixels of the detectors arrays, the limit of detection greatly depending upon the quality of the flat field corrections in certain cases.

The first section introduces ISO and its infrared imager and emphasizes the necessity of in-flight calibration. The following chapter presents the specifications for the internal calibration device. The chosen design for the flight model which consists of an infrared emitter and two integrating spheres, is presented in the third chapter. The last part describes the cryogenic bench dedicated to relative photometric tests, the absolute calibration is made in the camera. Endly we present the results obtained with this facility and final tests to achieve the qualification of the device.

Keywords

Spectral Imaging Infrared Imager Flux Condition Fundamental Limit Infrared Emitter 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Ballard, S. S., Mc Carthy, K. A., Wolfe, W. L.: Optical Materials for Infrared Instrumentation, The University of Michigan (1959).Google Scholar
  2. Bernel, J.: Rapport d'Essais Technologiques sur les Liaisons Souples a Usage Spatial, C.N.E.S., 77–66 (1977).Google Scholar
  3. Césarsky, C. J.: ISOCAM, in Infrared Astronomy with ISO, edited by T. Encrenaz and M. F. Kessler, Nove Science Publishers, 1992.Google Scholar
  4. Denner, H. D.: Electrical Insulators at Low Temperatures, ESTEC -University of Berlin (1986).Google Scholar
  5. Epstein, G., Carpentier, Y., Lorans, D., Stefanovitch, D., Tiphène, D.: Near Infrared Focal Plane for the Infrared Space Observatory Camera, Proceedings of SPIE, Vol. 865 (1987).Google Scholar
  6. Goebel, D. G.: Generalized Integrating Sphere Theory, Appl. Optics, Vol. 6, p. 125 (1967). ISOCAMGoogle Scholar
  7. Jacquez, J. A., Kuppenheim, H. F.: Theory of the Integrating Sphere, J. Opt. Soc. Am., Vol. 45-6, p. 460 (1955).Google Scholar
  8. Kessler, M. F., Heske, A., Metcalfe, L., Salama, A.: The ISO Mission - A Scientific Overview, ESA Bulletin 67 (1991).Google Scholar
  9. Lucas, C, Maillart, P., Mottier, P., Pantigny, P., Vilain, M.: Development of an Infrared Detector Array for Infrared Space Observatory Camera, Proceedings of SPIE, Vol. 865 (1987).Google Scholar
  10. Saint-Pé, O.: Etude, Réalisation, Mise au point et Caract érisation du Dispositif d'Etalonnage Interne de la Caméra IR du Satellite ISO, These en Sciences Physiques, Paris XI (1990).Google Scholar
  11. Wolfe, W. L., Zissis, G. J.: The Infrared Handbook, Office of Naval Research, Department of the Navy (1985).Google Scholar
  12. Ximénez de Ferrán, S.: The ISO Spacecraft, ESA Bulletin 67 (1991).Google Scholar

Copyright information

© Kluwer Academic Publishers 1994

Authors and Affiliations

  • O. SAINT-PÉ
    • 1
  • P. PUGET
    • 1
  • D. ROUAN
    • 1
  • G. EPSTEIN
    • 1
  • M. COMBES
    • 1
  1. 1.section de MeudonDépartement de Recherche Spatiale Observatoire de ParisMeudon C édexFrance

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