Radiometric calibration of the telescope and ultraviolet spectrometer SUMER on SOHO

Details Radiometric calibration of the telescope and ultraviolet spectrometer SUMER on SOHO Radiometric calibration of the telescope and ultraviolet spectrometer SUMER on SOHO

Sep 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996apopt..35.5125h&link_type=abstract

Applied Optics, Volume 35, Issue 25, September 1, 1996, pp.5125-5133

Physics

Optics

41

Astronomy And Astrophysics, Imaging Systems, Instrumentation: Measurement: And Metrology, Physical Optics, Radiometry, Spectrometers, Spectroscopy, Spectroscopy: Ultraviolet, Telescopes, Ultraviolet

Scientific paper

The prelaunch spectral-sensitivity calibration of the solar spectrometer SUMER (Solar Ultraviolet Measurements of Emitted Radiation) is described. SUMER is part of the payload of the Solar and Heliospheric Observatory (SOHO), which begins its scientific mission in 1996. The instrument consists of a telescope and a spectrometer capable of taking spatially and spectrally highly resolved images of the Sun in a spectral range from 50 to 161 nm. The pointing capabilities, the dynamic range, and the sensitivity of the instrument allow measurements both on the solar disk and above the limb as great as two solar radii. To determine plasma temperatures and densities in the solar atmosphere, the instrument needs an absolute spectral-sensitivity calibration. Here we describe the prelaunch calibration of the full instrument, which utilizes a radiometric transfer-standard source. The transfer standard was based on a high-current hollow-cathode discharge source. It had been calibrated in the laboratory for vacuum UV radiometry of the Physikalisch-Technische Bundesanstalt by use of the calculable spectral photon flux of the Berlin electron storage ring for synchrotron radiation (BESSY)-a primary radiometric source standard.

Affiliated with

Also associated with

No associations

Rating

Radiometric calibration of the telescope and ultraviolet spectrometer SUMER on SOHO does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Radiometric calibration of the telescope and ultraviolet spectrometer SUMER on SOHO, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radiometric calibration of the telescope and ultraviolet spectrometer SUMER on SOHO will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1459921