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Overview of core diagnostics for TEXTOR
2005 (English)In: Fusion science and technology, ISSN 1536-1055, Vol. 47, no 2, 220-245 p.Article in journal (Refereed) Published
Abstract [en]

The diagnostic system of TEXTOR comprises about 50 individual diagnostic devices. Since the start of the Trilateral Euregio Cluster collaboration, part of the emphasis in the experimental program has shifted toward the study of physics processes in the plasma core. To aid these studies several new and advanced core diagnostics have been implemented, whereas a number of other core diagnostics have been upgraded to higher resolution, more channels, and better accuracy. In this paper a brief overview is given of the present set of plasma core diagnostics at TEXTOR.

Place, publisher, year, edition, pages
2005. Vol. 47, no 2, 220-245 p.
Keyword [en]
TEXTOR, diagnostics, core diagnostics
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-6689ISI: 000226876100017OAI: oai:DiVA.org:kth-6689DiVA: diva2:11468
Note
QC 20101116Available from: 2006-12-22 Created: 2006-12-22 Last updated: 2010-11-17Bibliographically approved
In thesis
1. Development of visible spectroscopic techniques for applications in plasma diagnostics
Open this publication in new window or tab >>Development of visible spectroscopic techniques for applications in plasma diagnostics
2006 (English)Licentiate thesis, comprehensive summary (Other scientific)
Abstract [en]

In this thesis visible spectroscopy is developed and used for two applications.

Studies of motional Stark effect spectra for diagnosing the current distribution in the fusion plasmas with two different spectroscopic diagnostic systems: ratiometry and interferometry. Both systems provide non-invasive method for diagnosis of the internal plasma properties, e.g. magnetic field. Pitch angle of magnetic field lines are obtained from polarisation of Stark split Hα spectral lines emitted by energetic hydrogen atoms injected into the plasma volume by neutral beam. Several methods of calibration of the systems on TEXTOR and JET are discussed. The main result of this work is the first measurement of the safety factor radial profile with new ratiometric MSE system on TEXTOR.

Studies of molecular fragmentation of free molecules CH4 and NH3 excited with synchrotron radiation by detection of the fluorescence from the fragments. The results give the decay path ways for the molecules when excited below the N and C ionisation edges.

Place, publisher, year, edition, pages
Stockholm: KTH, 2006. xi, 39 p.
Series
Trita-FYS, ISSN 0280-316X ; 2006:66
National Category
Physical Sciences
Identifiers
urn:nbn:se:kth:diva-4252 (URN)91-7178-479-9 (ISBN)
Presentation
2006-12-12, FA31, AlbaNova univ. centrum, Roslagstullsgatan 21, Stockholm, 10:00
Opponent
Supervisors
Note
QC 20101116Available from: 2006-12-22 Created: 2006-12-22 Last updated: 2010-11-17Bibliographically approved

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