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Neutron emission spectroscopy diagnosis of JET D and DT plasmas with the new MPRu instrument
Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Neutron Research. Department of Physics and Astronomy, Applied Nuclear Physics.
Department of Physics and Astronomy, Applied Nuclear Physics.
Department of Physics and Astronomy, Applied Nuclear Physics.
Department of Physics and Astronomy, Applied Nuclear Physics.
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2006 (English)In: 33rd EPS Conference on Plasma Phys. and Contr. Fusion, 2006, 30I P-1.071 p.Conference paper, Published paper (Refereed)
Place, publisher, year, edition, pages
2006. 30I P-1.071 p.
Identifiers
URN: urn:nbn:se:uu:diva-24830OAI: oai:DiVA.org:uu-24830DiVA: diva2:52604
Available from: 2007-02-07 Created: 2007-02-07 Last updated: 2017-01-25
In thesis
1. Neutron Spectrometry Techniques for Fusion Plasmas: Instrumentation and Performance
Open this publication in new window or tab >>Neutron Spectrometry Techniques for Fusion Plasmas: Instrumentation and Performance
2010 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Neutron are emitted from a deuterium plasma with energies around 2.5 MeV. The neutron spectrum is intimately related to the ion velocity distribution of the plasma. As a consequence, the analysis of neutron energy spectra can give information of the plasma rotation, the ion temperature, heating efficiency and fusion power.

The upgraded magnetic proton recoil spectrometer (MPRu), based on the thin-foil technique, is installed at the tokamak JET. The upgrade of the spectrometer was done to allow for measurements of deuterium plasmas. This thesis describes the hardware, the data reduction scheme and the kind of fusion plasma parameters that can be estimated from the data of the MPRu. The MPRu data from 3rd harmonic ion cyclotron resonance and beam heating are studied.

Other neutron spectrometer techniques are reviewed as well, in particular in the aspect of suitability for neutron emission spectrometry at ITER. Each spectrometer technique is evaluated using synthetic data which is obtained from standard scenarios of ITER. From this evaluation, we conclude that the thin-foil technique is the best technique to measure, e.g., the ion temperature in terms of time resolution.

Place, publisher, year, edition, pages
Uppsala: Acta Universitatis Upsaliensis, 2010. 70 p.
Series
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology, ISSN 1651-6214 ; 726
Keyword
fusion, plasma diagnostics, neutron spectrometry, neutron spectroscopy, MPRu, magnetic proton recoil spectrometer, fusion, ITER
National Category
Subatomic Physics
Research subject
Physics with specialization in Applied Nuclear Physics
Identifiers
urn:nbn:se:uu:diva-121615 (URN)978-91-554-7767-7 (ISBN)
Public defence
2010-05-12, Häggsalen, Angstrom Laboratory, Lägerhyddsvägen 1, Uppsala, 10:15 (English)
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Available from: 2010-04-20 Created: 2010-03-25 Last updated: 2011-01-12Bibliographically approved

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Andersson Sunden, EConroy, SEricsson, GGatu Johnson, MGiacomelli, LHellesen, CHjalmarsson, AKällne, JRonchi, ESjöstrand, HWeiszflog, M

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Andersson Sunden, EConroy, SEricsson, GGatu Johnson, MGiacomelli, LHellesen, CHjalmarsson, AKällne, JRonchi, ESjöstrand, HWeiszflog, M
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Department of Neutron ResearchApplied Nuclear Physics

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