Author:
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ISBN:
Category :
Languages : en
Pages :
Book Description
This report summarizes the criteria and designs that were used for the two TMX Thomson-scattering systems. It describes the optical, mechanical, electronic, and computer analysis features of these installations. A brief discussion of general Thomson-scattering principles and sensitivity limits is given. Also included are some plasma electron temperature and density measurements from TMX that were obtained through the use of these systems.
Thomson-scattering Systems on TMX.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
This report summarizes the criteria and designs that were used for the two TMX Thomson-scattering systems. It describes the optical, mechanical, electronic, and computer analysis features of these installations. A brief discussion of general Thomson-scattering principles and sensitivity limits is given. Also included are some plasma electron temperature and density measurements from TMX that were obtained through the use of these systems.
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
This report summarizes the criteria and designs that were used for the two TMX Thomson-scattering systems. It describes the optical, mechanical, electronic, and computer analysis features of these installations. A brief discussion of general Thomson-scattering principles and sensitivity limits is given. Also included are some plasma electron temperature and density measurements from TMX that were obtained through the use of these systems.
Mechanism Design of the Thomson Scattering Diagnostic System for the TMX East Mirror Plug
Author:
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ISBN:
Category :
Languages : en
Pages :
Book Description
This Thomson scattering diagnostic system is used to measure the electron temperature and density of the east mirror plug of the Tandem Mirror Experiment (TMX) at Lawrence Livermore Laboratory. The measurements are made by firing a high-power ruby laser pulse through the plasma where the electrons then re-radiate a small fraction of the light. Because of the velocity of the electrons, the wavelength of the re-radiated light is Doppler shifted. The width of the Doppler-shifted wavelength spectrum is a measure of the temperature of the electrons in the plasma, and the total amount of re-radiated light is proportional to the electron density.
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
This Thomson scattering diagnostic system is used to measure the electron temperature and density of the east mirror plug of the Tandem Mirror Experiment (TMX) at Lawrence Livermore Laboratory. The measurements are made by firing a high-power ruby laser pulse through the plasma where the electrons then re-radiate a small fraction of the light. Because of the velocity of the electrons, the wavelength of the re-radiated light is Doppler shifted. The width of the Doppler-shifted wavelength spectrum is a measure of the temperature of the electrons in the plasma, and the total amount of re-radiated light is proportional to the electron density.
Initial Simultaneous Thomson-scattering Measurements in the TMX-U Tandem Mirror
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
In this report, we briefly describe the TMX-U Thomson-scattering systems; we compare TMX-U velocity-distribution measurements with computer modeling; and we present and discuss our first simultaneous measurements of end-plug and central-cell electron temperatures.
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
In this report, we briefly describe the TMX-U Thomson-scattering systems; we compare TMX-U velocity-distribution measurements with computer modeling; and we present and discuss our first simultaneous measurements of end-plug and central-cell electron temperatures.
Optical Design of the TMX Thomson Scattering Diagnostic
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The Thomson Scattering Diagnostic on TMX was built to measure the electron temperature in the plug. The design was based on the 2XII system built by Tom Simonen. Substantial improvements were realized over the original design, these include: (1) improved sensitivity, (2) simultaneous multiple position sampling, (3) multiple pulse capability, (4) achromatic imaging, (5) vacuum alignment capability, (6) high reliability, and (7) built in calibration and performance monitoring.
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The Thomson Scattering Diagnostic on TMX was built to measure the electron temperature in the plug. The design was based on the 2XII system built by Tom Simonen. Substantial improvements were realized over the original design, these include: (1) improved sensitivity, (2) simultaneous multiple position sampling, (3) multiple pulse capability, (4) achromatic imaging, (5) vacuum alignment capability, (6) high reliability, and (7) built in calibration and performance monitoring.
Summary of Thomson-scattering Data from the Tandem Mirror Experiment (TMX).
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
We provide a synthesis of our Thomson-scattering measurements of electron temperature (T/sub e/) and density (n/sub e/) for the Tandem Mirror Experiment (TMX). TMX operated in two modes - high and low T/sub e/. When performing in the high T/sub e/ mode (in general> 100 eV), heating the central-cell ions with neutral beams raised T/sub e/ in the end plug. We achieved a maximum T/sub e/ of 260 eV in the east end plug. Specifically, our experiments demonstrated that in the end plug, the radial T/sub e/ profiles were flat to r = 5 cm; the ratio of potential (phi/sub p/) to T/sub e/ ranged between four and six. In addition, we found that although T/sub e/ in the central cell was generally comparable to that in the plug, it was often not constant along a magnetic field line. Under some conditions a non-Maxwellian electron distribution may have been present.
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
We provide a synthesis of our Thomson-scattering measurements of electron temperature (T/sub e/) and density (n/sub e/) for the Tandem Mirror Experiment (TMX). TMX operated in two modes - high and low T/sub e/. When performing in the high T/sub e/ mode (in general> 100 eV), heating the central-cell ions with neutral beams raised T/sub e/ in the end plug. We achieved a maximum T/sub e/ of 260 eV in the east end plug. Specifically, our experiments demonstrated that in the end plug, the radial T/sub e/ profiles were flat to r = 5 cm; the ratio of potential (phi/sub p/) to T/sub e/ ranged between four and six. In addition, we found that although T/sub e/ in the central cell was generally comparable to that in the plug, it was often not constant along a magnetic field line. Under some conditions a non-Maxwellian electron distribution may have been present.
Fusion Energy Update
Author:
Publisher:
ISBN:
Category : Controlled fusion
Languages : en
Pages : 160
Book Description
Publisher:
ISBN:
Category : Controlled fusion
Languages : en
Pages : 160
Book Description
Energy Research Abstracts
Author:
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ISBN:
Category : Power resources
Languages : en
Pages : 1044
Book Description
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 1044
Book Description
A discussion of critieria for evaluating initial TMX experiments
Author: William R. Ellis
Publisher:
ISBN:
Category : Magnetohydrodynamic generators
Languages : en
Pages : 40
Book Description
Publisher:
ISBN:
Category : Magnetohydrodynamic generators
Languages : en
Pages : 40
Book Description
Proceedings of the 8th Symposium on Engineering Problems of Fusion Research
Author:
Publisher:
ISBN:
Category : Controlled fusion
Languages : en
Pages : 622
Book Description
Publisher:
ISBN:
Category : Controlled fusion
Languages : en
Pages : 622
Book Description
Government Reports Annual Index
Author:
Publisher:
ISBN:
Category : Research
Languages : en
Pages : 1300
Book Description
Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Publisher:
ISBN:
Category : Research
Languages : en
Pages : 1300
Book Description
Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.