๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

A multithermal analysis of solar X-ray emission

โœ Scribed by Kenneth P. Dere; Donald M. Horan; Robert W. Kreplin

Publisher
Springer
Year
1974
Tongue
English
Weight
642 KB
Volume
36
Category
Article
ISSN
0038-0938

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โœฆ Synopsis

The NRL SOLRAD 10 satellite carries six ionization chambers to measure solar X-radiation in the 0.5 to 60 ~ wavelength band. The X-ray emission spectrum in this range is determined by the derivative of the coronal emission measure ( [Ne2d V) with respect to temperature when the thermal processes of bremsstrahlung, radiative recombination and line radiation are considered. If a simple model for this differential emission measure is used and detector responses to the calculated spectra are fitted to the SOLRAD data by a least squares method, the differential emission measure can be obtained for temperatures between 2 โ€ข 106 K and 64 โ€ข 106 K. Data during quiet and flaring periods are analyzed and the general behavior of the differential emission measure during flares is presented. This analysis is based on experimental measurements of the efficiencies of the SOLRAD detectors.

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