Ultraviolet coronagraph spectrometer (UVCS) for the solar and heliospheric (SOHO) mission

Silvano Fineschi; Giampiero Naletto; Piergiorgio Nicolosi; Giancarlo C. Noci; Claudio Pernechele; Marco Romoli; D. Spadaro; Giuseppe Tondello

doi:10.1117/12.185268

13 September 1994 Ultraviolet coronagraph spectrometer (UVCS) for the solar and heliospheric (SOHO) mission

Silvano Fineschi, Giampiero Naletto, Piergiorgio Nicolosi, Giancarlo C. Noci, Claudio Pernechele, Marco Romoli, D. Spadaro, Giuseppe Tondello

Author Affiliations +

Proceedings Volume 2209, Space Optics 1994: Earth Observation and Astronomy; (1994) https://doi.org/10.1117/12.185268
Event: Space Optics '94, 1994, Garmisch, Germany

Abstract

The optical performances of the Ultraviolet Coronagraph Spectrometer (UVCS) of the Solar and Heliospheric Observatory (SOHO) mission have been tested. A laboratory evaluation unit (LEU) of the spectrometer assembly (SPA) consisting of the structure equipped with breadboard models of the entrance slit assembly (ESA), a grating drive mechanism (GDM) mounting a toroidal grating for the Ly(alpha) channel and a multi-anode microchannel array (MAMA) detector has been integrated and aligned. Both tests with visible and UV radiation have been performed. Aberration and stray light measurements have shown satisfactory performances of the instrument almost in compliance with the scientific requirements. A LEU and a flight unit of the White Light Channel (WLC) have been integrated and aligned in a proper light-tight housing and in the flight spectrometer assembly respectively. Measurements of the polarimeter modulation curve and the relative error have shown performances within the specificated requirements.

Citation Download Citation

Silvano Fineschi, Giampiero Naletto, Piergiorgio Nicolosi, Giancarlo C. Noci, Claudio Pernechele, Marco Romoli, D. Spadaro, and Giuseppe Tondello "Ultraviolet coronagraph spectrometer (UVCS) for the solar and heliospheric (SOHO) mission", Proc. SPIE 2209, Space Optics 1994: Earth Observation and Astronomy, (13 September 1994); https://doi.org/10.1117/12.185268

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available