Spectroscopic Measurements of Plasma Density and Temperature in a Plasma Opening Switch

Spectroscopic Measurements of Plasma Density and Temperature in a Plasma Opening Switch PDF Author: Lynne Kay Adler
Publisher:
ISBN:
Category :
Languages : en
Pages : 228

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Spectroscopic Measurements of Plasma Density and Temperature in a Plasma Opening Switch

Spectroscopic Measurements of Plasma Density and Temperature in a Plasma Opening Switch PDF Author: Lynne Kay Adler
Publisher:
ISBN:
Category :
Languages : en
Pages : 228

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Book Description


Introduction to Plasma Spectroscopy

Introduction to Plasma Spectroscopy PDF Author: Hans-Joachim Kunze
Publisher: Springer Science & Business Media
ISBN: 3642022332
Category : Science
Languages : en
Pages : 242

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Book Description
Although based on lectures given for graduate students and postgraduates starting in plasma physics, this concise introduction to the fundamental processes and tools is as well directed at established researchers who are newcomers to spectroscopy and seek quick access to the diagnostics of plasmas ranging from low- to high-density technical systems at low temperatures, as well as from low- to high-density hot plasmas. Basic ideas and fundamental concepts are introduced as well as typical instrumentation from the X-ray to the infrared spectral regions. Examples, techniques and methods illustrate the possibilities. This book directly addresses the experimentalist who actually has to carry out the experiments and their interpretation. For that reason about half of the book is devoted to experimental problems, the instrumentation, components, detectors and calibration.

Feasibility of Measuring Density and Temperature of Laser Produced Plasmas Using Spectroscopic Techniques

Feasibility of Measuring Density and Temperature of Laser Produced Plasmas Using Spectroscopic Techniques PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 9

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Book Description
A wide variety of experiments on the Z-Beamlet laser involve the creation of laser produced plasmas. Having a direct measurement of the density and temperature of these plasma would an extremely useful tool, as understanding how these quantities evolve in space and time gives insight into the causes of changes in other physical processes, such as x-ray generation and opacity. We propose to investigate the possibility of diagnosing the density and temperature of laser-produced plasma using temporally and spatially resolved spectroscopic techniques that are similar to ones that have been successfully fielded on other systems. Various researchers have measured the density and temperature of laboratory plasmas by looking at the width and intensity ratio of various characteristic lines in gases such as nitrogen and hydrogen, as well as in plasmas produced off of solid targets such as zinc. The plasma conditions produce two major measurable effects on the characteristic spectral lines of that plasma. The 1st is the Stark broadening of an individual line, which depends on the electron density of the plasma, with higher densities leading to broader lines. The second effect is a change in the ratio of various lines in the plasma corresponding to different ionization states. By looking at the ratio of these lines, we can gain some understanding of the plasma ionization state and consequently its temperature (and ion density when coupled with the broadening measurement). The hotter a plasma is, the higher greater the intensity of lines corresponding to higher ionization states. We would like to investigate fielding a system on the Z-Beamlet laser chamber to spectroscopically study laser produced plasmas from different material targets.

Principles of Plasma Spectroscopy

Principles of Plasma Spectroscopy PDF Author: Hans R. Griem
Publisher:
ISBN: 9780521455046
Category : Science
Languages : en
Pages : 366

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Book Description
This is a comprehensive description of the theoretical foundations and experimental applications of spectroscopic methods in plasma physics research. It introduces the classical and quantum theory of radiation, with detailed descriptions of line strengths and high density effects, and describes theoretical and experimental aspects of spectral line broadening. The book illustrates the concepts of continuous spectra, level kinetics and cross sections, thermodynamic equilibrium relations, radiative energy transfer, and radiative energy losses. The basics of plasma spectroscopy to density and temperature measurements and to the determination of some other plasma properties are also explored. Over one thousand references not only guide the reader to original research covered in the chapters, but also to experimental details and instrumentation.

Electron Temperature Measurements in Low Density Plasmas by Helium Spectroscopy

Electron Temperature Measurements in Low Density Plasmas by Helium Spectroscopy PDF Author: Nils Brenning
Publisher:
ISBN:
Category :
Languages : en
Pages : 24

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Measurements of plasma density and ion temperature using beam induced radiation spectroscopy in the gas-dynamic trap

Measurements of plasma density and ion temperature using beam induced radiation spectroscopy in the gas-dynamic trap PDF Author: A. N. Zinov́ev
Publisher:
ISBN:
Category :
Languages : en
Pages : 23

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Book Description


On a Spectroscopic Method for Measuring the Electron Temperature of a Plasma

On a Spectroscopic Method for Measuring the Electron Temperature of a Plasma PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Book Description


Spectroscopic Temperature Measurements of Non-equilibrium Plasmas

Spectroscopic Temperature Measurements of Non-equilibrium Plasmas PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 10

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Book Description
The characterization of laser-produced plasmas has required the application of spectroscopic techniques to non-standard conditions where kinetics models have not been extensively tested. The plasmas are produced by the Nova laser for the study of inertial confinement fusion, can be mm in size, and evolve on sub-nanosecond time scales. These targets typically achieve electron temperatures from 2-4 keV and electron densities of 102°-1022 cm−3. The authors have measured the electron temperature of two types of targets: bags of gas and hohlraums, Au cylinders with laser entrance holes in the flat ends. By comparing data from different targets, they examine the time-dependence of spectroscopic plasma diagnostics.

Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 880

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Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Plasma Spectroscopy

Plasma Spectroscopy PDF Author: Takashi Fujimoto
Publisher: Clarendon Press
ISBN: 0191523895
Category : Science
Languages : en
Pages : 300

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Book Description
This book focuses on the characteristics of optical radiation, or a spectrum, emitted by various plasmas. In plasma, the same atomic species can produce quite different spectra, or colours, depending on the nature of the plasma. This book gives a theoretical framework by which a particular spectrum can be interpreted correctly and coherently. The uniqueness of the book lies in its comprehensive treatment of the intensity distribution of spectral lines and the population density distribution among the atomic levels in plasmas. It is intended to provide beginners with a good perspective of the field, laying out the physics in an extremely clear manner and starting from an elementary level. A useful feature of the book is the asterisked sections and chapters which can be skipped by readers who only wish to gain a quick and basic introduction to plasma spectroscopy. It will also be useful to researchers working actively in the field, acting as a guide for carrying out experiments and interpreting experimental observations.