Abstract

An analysis of stray-light suppression in the white-light channel of the Ultraviolet Coronagraph Spectrometer experiment for the Solar and Heliospheric Observatory is reported. The white-light channel consists of a reflecting telescope with external and internal occultation and a polarimeter section. Laboratory tests and analytical methods are used to perform the analysis. The various stray-light contributions are classified in two main categories: the contribution from sunlight that passes directly through the entrance aperture and the contribution of sunlight that is diffracted by the edges of the entrance aperture. Values of the stray-light contributions from various sources and the total stray-light level for observations at heliocentric heights from 1.4 to 5 solar radii are derived. Anticipated signal-to-stray-light ratios are presented together with the effective stray-light rejection by the polarimeter, demonstrating the efficacy of the stray-light suppression design.

© 1993 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
External occulter laboratory demonstrator for the forthcoming formation flying coronagraphs

Federico Landini, Sébastien Vives, Mélanie Venet, Marco Romoli, Christophe Guillon, and Silvano Fineschi
Appl. Opt. 50(36) 6632-6644 (2011)

Optical performances of the Ultraviolet Coronagraph Spectrometer of the Solar Heliospheric Observatory

Claudio Pernechele, Giampiero Naletto, Piergiorgio Nicolosi, Giuseppe Tondello, Silvano Fineschi, Marco Romoli, Giancarlo Noci, Daniele Spadaro, and John L. Kohl
Appl. Opt. 36(4) 813-826 (1997)

Ultraviolet and extreme ultraviolet spectroscopy of the solar corona at the Naval Research Laboratory

J. D. Moses, Y.-K. Ko, J. M. Laming, E. A. Provornikova, L. Strachan, and S. Tun Beltran
Appl. Opt. 54(31) F222-F231 (2015)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (10)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (20)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription