Thermal and Non-Thermal X-Rays from SN 1006 and IC 443

From many Galactic supernova remnants (SNRs), X-ray emissions consisting of non-equilibrium ionization (NEI) plasma and additional hard component are detected. The hard emission have been usually interpreted as a high temperature plasma of = 10 keV. However, the recent observation with ASCA made it clear that the hard components of some SNRs are of non-thermal origin. Here we report the ASCA results of SN 1006 and IC 443 observations as an example of such SNRs.

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X-Ray Emission from High-Temperature Laboratory, Plasmas

Advances in X-ray Analysis ◽

10.1154/s0376030800006583 ◽

1974 ◽

Vol 18 ◽

pp. 1-25

Author(s):

D. J. Nagel

Keyword(s):

Power Generation ◽

High Temperature ◽

Diagnostic Information ◽

X Rays ◽

Temperature Plasma ◽

Fusion Power ◽

X Ray ◽

High Temperature Plasma ◽

Laboratory Plasmas

AbstractThe radiation from plasmas hotter than 106K falls in the x-ray region. Such plasmas are required for fusion power generation. They can also be used as x-ray sources. Measurements of x-ray emission from high temperature plasma yields (a) diagnostic information on the plasma conditions and (b) the characteristics of plasma x-ray sources which determine their applications. Hence, measurements of x-rays from plasmas are finding widespread use.

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Opacity of Krypton X-ray lines in high-temperature plasma implosion

Modern Physics Letters B ◽

10.1142/s0217984919504189 ◽

2019 ◽

Vol 33 (33) ◽

pp. 1950418

Author(s):

Zhiqiang Zhen ◽

Jian He

Keyword(s):

High Temperature ◽

Line Ratio ◽

Text Line ◽

X Rays ◽

Temperature Plasma ◽

X Ray ◽

High Temperature Plasma ◽

Gaussian Profile ◽

Density Diagnostics ◽

Escape Factor

For accurate electron temperature and density diagnostics in laser high-temperature plasma implosion, opacity of Krypton (Kr) helium-[Formula: see text] and Balmer-[Formula: see text] lines are discussed, and ratio of escape factor of the two X-rays are calculated, both for Gaussian and Holtzmarkian profiles. Finally, the line ratios of the two X-ray lines are analyzed for optically thin and thick plasmas. Results indicate that for the Gaussian profile, the line ratio varies greatly with the opacity of the Kr helium-[Formula: see text] line, which provides excellent source for temperature and electron density diagnostics; while for the Holtzmarkian profile, the line ratio varies less with the opacity of the Kr helium-[Formula: see text] line, which can be used for escape factor diagnostics. This method is significant in accurate plasma diagnostics using X-rays under the condition of optically thick.

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On Two Mechanisms of X-Ray Generation in Comets

International Astronomical Union Colloquium ◽

10.1017/s025292110008492x ◽

1985 ◽

Vol 85 ◽

pp. 365-368

Author(s):

S. Ibadov

Keyword(s):

High Temperature ◽

Interplanetary Dust ◽

Dust Particles ◽

Interplanetary Dust Particles ◽

Temperature Plasma ◽

X Ray ◽

Plasma Generation ◽

High Temperature Plasma

AbstractThe intensity of solar X-radiation scattered by a comet is calculated and compared to the proper X-radiation of the comet due to impacts of cometary and interplanetary dust particles. Detection of X-radiation of dusty comets at small heliocentric distances (R ≤ 1 a.u.) is found to be an indicator of high-temperature plasma generation as result of grain collisions.

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