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Neutron emission spectroscopy diagnosis of JET D and DT plasmas with the new MPRu instrument
Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Fysiska sektionen, Institutionen för neutronforskning. Institutionen för fysik och astronomi, Tillämpad kärnfysik.
Institutionen för fysik och astronomi, Tillämpad kärnfysik.
Institutionen för fysik och astronomi, Tillämpad kärnfysik.
Institutionen för fysik och astronomi, Tillämpad kärnfysik.
Vise andre og tillknytning
2006 (engelsk)Inngår i: 33rd EPS Conference on Plasma Phys. and Contr. Fusion, 2006, s. 30I P-1.071Konferansepaper, Publicerat paper (Fagfellevurdert)
sted, utgiver, år, opplag, sider
2006. s. 30I P-1.071
Identifikatorer
URN: urn:nbn:se:uu:diva-24830OAI: oai:DiVA.org:uu-24830DiVA, id: diva2:52604
Tilgjengelig fra: 2007-02-07 Laget: 2007-02-07 Sist oppdatert: 2017-01-25
Inngår i avhandling
1. Neutron Spectrometry Techniques for Fusion Plasmas: Instrumentation and Performance
Åpne denne publikasjonen i ny fane eller vindu >>Neutron Spectrometry Techniques for Fusion Plasmas: Instrumentation and Performance
2010 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
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.

sted, utgiver, år, opplag, sider
Uppsala: Acta Universitatis Upsaliensis, 2010. s. 70
Serie
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology, ISSN 1651-6214 ; 726
Emneord
fusion, plasma diagnostics, neutron spectrometry, neutron spectroscopy, MPRu, magnetic proton recoil spectrometer, fusion, ITER
HSV kategori
Forskningsprogram
Fysik med inriktning mot tillämpad kärnfysik
Identifikatorer
urn:nbn:se:uu:diva-121615 (URN)978-91-554-7767-7 (ISBN)
Disputas
2010-05-12, Häggsalen, Angstrom Laboratory, Lägerhyddsvägen 1, Uppsala, 10:15 (engelsk)
Opponent
Veileder
Tilgjengelig fra: 2010-04-20 Laget: 2010-03-25 Sist oppdatert: 2011-01-12bibliografisk kontrollert

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

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