Calibration of an EUV spectrometer using synchrotron radiation to distinguish overlapping orders

Details Calibration of an EUV spectrometer using synchrotron radiation to distinguish overlapping orders Calibration of an EUV spectrometer using synchrotron radiation to distinguish overlapping orders

Oct 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992spie.1743..482o&link_type=abstract

In: EUV, X-ray, and gamma-ray instrumentation for astronomy III; Proceedings of the Meeting, San Diego, CA, July 22-24, 1992 (A9

Astronomy and Astrophysics

Astronomy

Calibrating, Extreme Ultraviolet Radiation, Solar Spectra, Synchrotron Radiation, Ultraviolet Spectrometers, Pixels, Storage Rings (Particle Accelerators)

Scientific paper

We have calibrated a high resolution EUV spectrometer in three spectroscopic orders using the Synchrotron Ultraviolet Radiation Facility (SURF-II) at Gaithersburg, MD. The spectrometer was the principal instrument on a University of Colorado sounding rocket experiment, with a first order bandpass of roughly 5.8 nm centered at 155.5 nm, and resolving power of 4 x 10 exp 4. Synchrotron radiation provides a well calibrated, columnated and polarized light source well suited to photometric calibration. The spectral distribution of synchrotron radiation is extremely well known from the theory of synchrotron radiation, and the spectral shape and intensity are directly related to the electron beam energy and current. If the instrument is calibrated at as many different beam energies as there are spectroscopic orders, then the spectrometer efficiency in each order can be determined from a simple set of simultaneous equations.

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