Solar flare soft X-ray spectra from Diogeness observations

Diogeness was an uncollimated scanning flat crystal spectrometer observing solar flare X-ray spectra in four narrow wavelength bands in the vicinity of Ca xix, S xv and Si xiii He-like line ‘triplets’ around 3.18 Å, 5.04 Å and 6.65 Å. In two of the spectral channels, emission lines around the Ca xix...

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Bibliographic Details
Published in:Proceedings of the International Astronomical Union 2015-08, Vol.11 (S320), p.109-111
Main Authors: Stȩślicki, Marek, Sylwester, Janusz, Sylwester, Barbara, Szaforz, Żaneta, Kordylewski, Zbigniew, Płocieniak, Stefan, Siarkowski, Marek, Phillips, Kenneth J. H.
Format: Article
Language:English
Subjects:
Analysis
Channels
Contributed Papers
Corona
Flares
Gamma rays
Solar flares
Spectra
Spectral emissivity
Spectral lines
Spectrometers
Spectrum analysis
Studies
Tachometers
X-rays
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Summary:Diogeness was an uncollimated scanning flat crystal spectrometer observing solar flare X-ray spectra in four narrow wavelength bands in the vicinity of Ca xix, S xv and Si xiii He-like line ‘triplets’ around 3.18 Å, 5.04 Å and 6.65 Å. In two of the spectral channels, emission lines around the Ca xix 3.178 Å resonance line were scanned in opposite directions, being diffracted from precisely adjusted identical Quartz crystals mounted on a common shaft in a so-called Dopplerometer (tachometer) configuration. Observations of solar X-ray spectra made by Diogeness provide a direct diagnostic information on plasma characteristics during the impulsive flare energy release. We present a sample of events which occurred during the Diogeness operation time from August 16, 2001 to September 17, 2001.
ISSN:1743-9213
1743-9221
DOI:10.1017/S1743921316000314