Quantum-statistical approach to pressure broadening for Lyman lines from dense hydrogen and hydrogen-like plasmas

Sonja Lorenzen

doi:10.18453/rosdok_id00001552

Sonja Lorenzen

Quantum-statistical approach to pressure broadening for Lyman lines from dense hydrogen and hydrogen-like plasmas

Universität Rostock, 2015

https://doi.org/10.18453/rosdok_id00001552

Abstract: Here, pressure broadening is calculated for Lyman lines emitted from dense hydrogen and lithium plasmas, applying a quantum-statistical theory. The effects of plasma electrons and ions are treated separately. While ions are considered static and within two different ion-dynamics models, the collision approximation is used for electrons in two different versions: a perturbative Born approximation, and an effective two-particle T-matrix approach based on convergent-close coupling calculations. The latter is able to treat strong electron-emitter collisions consistently.

doctoral thesis free access

title:

Quantum-statistical approach to pressure broadening for Lyman lines from dense hydrogen and hydrogen-like plasmas

other title:

Quantenstatistischer Zugang zur Druckverbreiterung von Lymanlinien aus dichten Wasserstoff- und wasserstoffartigen Plasmen [translated]

contributing persons:

Sonja Lorenzen[VerfasserIn]
	1071807803
Heidi Reinholz , PD Dr.[AkademischeR BetreuerIn]
	112466907
	Universität Rostock, Institut für Physik
Sibylle Günter , Prof. Dr.[AkademischeR BetreuerIn]
	112685994
	Universität Rostock, Max-Planck-Institut für Plasmaphysik, Garching

contributing corporate bodies:

Universität Rostock, Mathematisch-Naturwissenschaftliche Fakultät[Grad-verleihende Institution]
	2147083-2

abstract:

Here, pressure broadening is calculated for Lyman lines emitted from dense hydrogen and lithium plasmas, applying a quantum-statistical theory. The effects of plasma electrons and ions are treated separately. While ions are considered static and within two different ion-dynamics models, the collision approximation is used for electrons in two different versions: a perturbative Born approximation, and an effective two-particle T-matrix approach based on convergent-close coupling calculations. The latter is able to treat strong electron-emitter collisions consistently. [English]

In dieser Arbeit wird eine quanten-statistische Theorie für die Druckverbreiterung von Lyman-Linien, die von dichten Wasserstoff- oder Lithiumplasmen emittiert werden, angewendet. Dabei werden die Effekte der Plasmaelektronen und -ionen getrennt behandelt. Ionen werden statisch sowie mit zwei verschiedenen Ionendynamikmodellen betrachtet. Elektronen werden über zwei Versionen der Stoßnäherung berücksichtigt: störungstheoretische Bornsche Näherung und effektiver 2-Teilchen-T-Matrix-Zugang werden verglichen. Letzterer behandelt starke e-Strahler-Stöße konsistent. [German]

document type:

doctoral thesis

institution:

Faculty of Mathematics and Natural Sciences

language:

English

subject class (DDC):

530 Physics

publication /
production:

Rostock: Universität Rostock

2015

identifiers: