Validation of Joint European Torus polarimetric measurements with residual analysis (Articolo in rivista)

Type
Label
  • Validation of Joint European Torus polarimetric measurements with residual analysis (Articolo in rivista) (literal)
Anno
  • 2010-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1088/0957-0233/21/11/115704 (literal)
Alternative label
  • Gelfusa M.; Murari A.; Patane D.; Gaudio P.; Boboc A. (2010)
    Validation of Joint European Torus polarimetric measurements with residual analysis
    in Measurement science & technology (Print); IOP PUBLISHING LTD, BRISTOL BS1 6BE (Regno Unito)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Gelfusa M.; Murari A.; Patane D.; Gaudio P.; Boboc A. (literal)
Pagina inizio
  • 115704 (literal)
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  • Article Number 115704. La rivista è pubblicata anche online con ISSN 1361-6501. (literal)
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  • http://iopscience.iop.org/0957-0233/21/11/115704/ (literal)
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  • 21 (literal)
Rivista
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  • Issue 11, Article Number 115704 (literal)
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  • 11 (literal)
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  • 11 (literal)
Note
  • Scopu (literal)
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1,4: Associazione EURATOM-ENEA-University of Rome 'Tor Vergata' Italy / - 2: Consorzio RFX Associazione-EURATOM-ENEA per la Fusione, 4-35127 Padova, Italy / - 3: Dipartimento di Ingegneria Elettrica Elettronica e dei Sistemi-Università degli Studi di Catania, 95125 Catania, Italy / - 5: EURATOM/CCFE Fusion Association, Culham Science Centre, Abingdon, OX14 3DB, UK / - 6: JET-EFDA, Culham Science Centre, Abingdon, OX14 3DB, UK (literal)
Titolo
  • Validation of Joint European Torus polarimetric measurements with residual analysis (literal)
Abstract
  • Recently a complete model of JET polarimeter calibration has been developed. A specific propagation code has also been written to simulate the measurements of both the vertical and horizontal chords during plasma operation. In this paper, these two models have been checked with residual analysis methods valid for nonlinear systems. The differences between the estimates of the codes and the experimental measurements, during both calibration and plasma operation, have been calculated and analysed statistically. The distribution of the residuals confirms the quality of the model developed to interpret the calibration of the diagnostic. On the other hand, during plasma operation, the residuals do not present a Gaussian distribution and there is clear evidence of serial correlation at subsequent times. Correlation analysis with the inputs indicates that problems with the magnetic field topology, provided by an independent equilibrium code, are the source of the inadequacies in the results of the propagation model. (literal)
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