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Search: WFRF:(Garcia Carrasco Alvaro 1989 ) > (2016) > Classification of J...

Classification of JET Neutron and Gamma Emissivity Profiles

Craciunescu, T. (author)
EUROfus Consortium, JET, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England.;Natl Inst Laser Plasma & Radiat Phys, Str Atomistilor,409 POB MG-36, Bucharest 077125, Romania.;Natl Inst Laser Plasma & Radiat Phys, Magurele, Romania.
Bergsåker, Henric (author)
KTH,Fusionsplasmafysik
Bykov, Igor (author)
KTH,Fusionsplasmafysik
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Elevant, Thomas (author)
KTH,Fusionsplasmafysik
Frassinetti, Lorenzo (author)
KTH,Fusionsplasmafysik
Garcia Carrasco, Alvaro, 1989- (author)
KTH,Fusionsplasmafysik
Hellsten, Torbjörn (author)
KTH,Fusionsplasmafysik
Ivanova, Darya (author)
KTH,Fusionsplasmafysik
Johnson, Thomas (author)
KTH,Fusionsplasmafysik
Menmuir, Sheena (author)
KTH,Fusionsplasmafysik
Petersson, Per (author)
KTH,Fusionsplasmafysik
Rachlew, Elisabeth, 1944- (author)
KTH,Atom- och molekylfysik
Rubel, Marek (author)
KTH,Fusionsplasmafysik
Ström, Petter (author)
KTH,Fusionsplasmafysik
Tholerus, Simon, 1986- (author)
KTH,Fusionsplasmafysik
Weckmann, Armin (author)
KTH,Fusionsplasmafysik
Zychor, I. (author)
Inst Plasma Phys & Laser Microfus, PL-01497 Warsaw, Poland.
Andersson Sundén, Erik (author)
Uppsala universitet,Tillämpad kärnfysik
Asp, E. (author)
Uppsala universitet,Tillämpad kärnfysik
Binda, Federico, 1987- (author)
Uppsala universitet,Tillämpad kärnfysik
Cecconello, Marco (author)
Uppsala universitet,Tillämpad kärnfysik
Conroy, Sean (author)
Uppsala universitet,Tillämpad kärnfysik
Dzysiuk, Nataliia (author)
Uppsala universitet,Tillämpad kärnfysik
Ericsson, Göran (author)
Uppsala universitet,Tillämpad kärnfysik
Eriksson, Jacob, Dr, 1985- (author)
Uppsala universitet,Tillämpad kärnfysik
Hellesen, Carl, 1980- (author)
Uppsala universitet,Tillämpad kärnfysik
Hjalmarsson, Anders (author)
Uppsala universitet,Tillämpad kärnfysik
Possnert, Göran, 1951- (author)
Uppsala universitet,Tillämpad kärnfysik
Sjöstrand, Henrik, 1978- (author)
Uppsala universitet,Tillämpad kärnfysik
Skiba, Mateusz, 1985- (author)
Uppsala universitet,Tillämpad kärnfysik
Weiszflog, Matthias (author)
Uppsala universitet,Tillämpad kärnfysik
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EUROfus Consortium, JET, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England;Natl Inst Laser Plasma & Radiat Phys, Str Atomistilor,409 POB MG-36, Bucharest 077125, Romania.;Natl Inst Laser Plasma & Radiat Phys, Magurele, Romania. Fusionsplasmafysik (creator_code:org_t)
Institute of Physics (IOP), 2016
2016
English.
In: Journal of Instrumentation. - : Institute of Physics (IOP). - 1748-0221 .- 1748-0221. ; 11
Related links:
https://urn.kb.se/re...
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https://doi.org/10.1...
https://urn.kb.se/re...
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  • Journal article (peer-reviewed)
Abstract Subject headings
Close  
  • In thermonuclear plasmas, emission tomography uses integrated measurements along lines of sight (LOS) to determine the two-dimensional (2-D) spatial distribution of the volume emission intensity. Due to the availability of only a limited number views and to the coarse sampling of the LOS, the tomographic inversion is a limited data set problem. Several techniques have been developed for tomographic reconstruction of the 2-D gamma and neutron emissivity on JET. In specific experimental conditions the availability of LOSs is restricted to a single view. In this case an explicit reconstruction of the emissivity profile is no longer possible. However, machine learning classification methods can be used in order to derive the type of the distribution. In the present approach the classification is developed using the theory of belief functions which provide the support to fuse the results of independent clustering and supervised classification. The method allows to represent the uncertainty of the results provided by different independent techniques, to combine them and to manage possible conflicts.

Subject headings

NATURVETENSKAP  -- Fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences (hsv//eng)
NATURVETENSKAP  -- Fysik -- Acceleratorfysik och instrumentering (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Accelerator Physics and Instrumentation (hsv//eng)

Keyword

Data processing methods
Nuclear instruments and methods for hot plasma diagnostics
Pattern recognition
cluster finding
calibration and fitting methods

Publication and Content Type

ref (subject category)
art (subject category)

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