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Radial profiling using local and line integrated spectroscopic measurements
KTH, School of Engineering Sciences (SCI), Physics, Atomic and Molecular Physics.
2005 (English)Licentiate thesis, comprehensive summary (Other scientific)
Place, publisher, year, edition, pages
Stockholm: KTH , 2005. , xiv, 34 p.
Series
Trita-FYS, ISSN 0280-316X ; 2005:25
Keyword [en]
Atomic and molecular physics
Keyword [sv]
Atom- och molekylfysik
National Category
Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:kth:diva-346ISBN: 91-7178-047-5 (print)OAI: oai:DiVA.org:kth-346DiVA: diva2:9261
Presentation
2005-05-20, Sal FB51, AlbaNova, Roslagstullbacken 21, Stockholm, 10:00
Supervisors
Note
QC 20101207Available from: 2005-08-01 Created: 2005-08-01 Last updated: 2010-12-07Bibliographically approved
List of papers
1. A Spectroscopic Method To Determine Changes In The Temperature Profile
Open this publication in new window or tab >>A Spectroscopic Method To Determine Changes In The Temperature Profile
2003 (English)In: 30th EPS Conference on Contr. Fusion and Plasma Phys / [ed] R. Koch, S. Lebedev, Mulhouse: European Physical Society , 2003Conference paper, Published paper (Refereed)
Place, publisher, year, edition, pages
Mulhouse: European Physical Society, 2003
Series
Europhysic Conference Abstracts, Volume 27A
National Category
Atom and Molecular Physics and Optics
Identifiers
urn:nbn:se:kth:diva-27159 (URN)2-914771-11-8 (ISBN)
Conference
30th EPS Conference on Contr. Fusion and Plasma Phys., St. Petersburg, 7-11 July 2003
Note
QC 20101207Available from: 2010-12-07 Created: 2010-12-07 Last updated: 2010-12-07Bibliographically approved
2. First mirror contamination studies for polarimetry motional Stark effect measurements for ITER
Open this publication in new window or tab >>First mirror contamination studies for polarimetry motional Stark effect measurements for ITER
2004 (English)In: Review of Scientific Instruments, ISSN 0034-6748, E-ISSN 1089-7623, Vol. 75, 3446-3448 p.Article in journal (Refereed) Published
Abstract [en]

The motional Stark effect (MSE) diagnostic on the International Thermonuclear Experimental Reactor will need to guide the light through a labyrinth of mirrors to provide neutron shielding. Knowledge of how the mirrors change the polarization is essential for accurate determination of the q profile. The optical properties of the plasma facing mirror are also expected to change with time due to deposition/erosion. For the purpose of examining this experimentally a detector system, identical to the JET MSE system, using twin photoelastic modulators was constructed. Measurements have been performed on freshly prepared mirrors, on mirrors after exposure to plasmas in Tore Supra, and labyrinth designs. The result shows a significant effect on the optical properties and demonstrate the need for in situ monitoring. The measured properties of the labyrinth closely follow the Mueller matrix formalism. With a correct choice of material the angle change introduced by the four mirrors furthest away from the plasma will be below 1 degrees.

National Category
Atom and Molecular Physics and Optics
Identifiers
urn:nbn:se:kth:diva-6553 (URN)10.1063/1.1779615 (DOI)000224755900020 ()2-s2.0-9944234666 (Scopus ID)
Note
QC 20100906Available from: 2006-12-11 Created: 2006-12-11 Last updated: 2017-12-14Bibliographically approved
3. Oxygen impurity profile studies in the EXTRAP T2R reversed field pinch
Open this publication in new window or tab >>Oxygen impurity profile studies in the EXTRAP T2R reversed field pinch
Show others...
2005 (English)In: 32nd EPS Conference on Plasma Physics 2005, EPS 2005, Held with the 8th International Workshop on Fast Ignition of Fusion Targets: Europhysics Conference Abstracts, 2005, 413-416 p.Conference paper, Published paper (Refereed)
Series
Europhysics Conference Abstracts, 29C
National Category
Atom and Molecular Physics and Optics
Identifiers
urn:nbn:se:kth:diva-27162 (URN)2-s2.0-84873399614 (Scopus ID)978-162276332-0 (ISBN)
Conference
32nd European Physical Society Conference on Plasma Physics and Controlled Fusion combined with the 8th International Workshop on Fast Ignition of Fusion Targets; Tarragona, Spain, 27 June - 1 July, 2005
Note

QC 20101207

Available from: 2010-12-07 Created: 2010-12-07 Last updated: 2014-08-12Bibliographically approved
4. Ion and mode rotation in the EXTRAP T2R device during discharges with and without the application of feedback control
Open this publication in new window or tab >>Ion and mode rotation in the EXTRAP T2R device during discharges with and without the application of feedback control
Show others...
2005 (English)Conference paper, Published paper (Refereed)
Series
Europhysics Conference Abstracts, 29C
National Category
Atom and Molecular Physics and Optics
Identifiers
urn:nbn:se:kth:diva-8960 (URN)2-s2.0-84873366278 (Scopus ID)978-162276332-0 (ISBN)
Conference
32nd European Physical Society Conference on Plasma Physics and Controlled Fusion combined with the 8th International Workshop on Fast Ignition of Fusion Targets; Tarragona; Spain; 27 June 2005 through 1 July 2005
Note

QC 20101207

Available from: 2005-12-23 Created: 2005-12-23 Last updated: 2014-09-24Bibliographically approved
5. Accurate polarization measurements with a dual photoelastic modulator
Open this publication in new window or tab >>Accurate polarization measurements with a dual photoelastic modulator
2005 (English)In: Applied Optics, ISSN 1559-128X, E-ISSN 2155-3165, Vol. 44, no 28, 5899-5904 p.Article in journal (Refereed) Published
Abstract [en]

Measurements of the polarization effects in multimirror experiments by using a dual photoelastic modulator are described. The effect of single and multiple mirrors in polarization measurements in two and three dimensions is discussed, and experimental results show how symmetrical placement of mirrors in three-dimensional geometry can eliminate changes in the polarization. Calibration procedures for a dual photoelastic modulator and potential error sources such as misalignment of analyzer, signal dc offset, and neglect of aperture size are presented. Mirror-surface evolution and how it can disturb the polarization measurement are also addressed.

National Category
Atom and Molecular Physics and Optics
Identifiers
urn:nbn:se:kth:diva-6554 (URN)10.1364/AO.44.005899 (DOI)000232186200007 ()2-s2.0-28044470968 (Scopus ID)
Note
QC 20100906Available from: 2006-12-11 Created: 2006-12-11 Last updated: 2017-12-14Bibliographically approved
6. First Results The Radial 5-Channel Spectrometer On EXTRAP T2R
Open this publication in new window or tab >>First Results The Radial 5-Channel Spectrometer On EXTRAP T2R
Show others...
(English)Manuscript (preprint) (Other academic)
National Category
Atom and Molecular Physics and Optics
Identifiers
urn:nbn:se:kth:diva-27165 (URN)
Note
QC 20101207Available from: 2010-12-07 Created: 2010-12-07 Last updated: 2010-12-07Bibliographically approved

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