Determination of the pellet parameters by image processing methods (Articolo in rivista)

Type
Label
  • Determination of the pellet parameters by image processing methods (Articolo in rivista) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.fusengdes.2010.12.052 (literal)
Alternative label
  • Teddy Craciunescu; Peter Lang; Andrea Murari; Tamás Szepesi; Sándor Kálvin; Gábor Kocsis; Arturo Alonso; Ion Tiseanu; Vasile Zoita; JET EFDA Contributors (2011)
    Determination of the pellet parameters by image processing methods
    in Fusion engineering and design; ELSEVIER SCIENCE SA, PO BOX 564, 1001 LAUSANNE (Svizzera)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Teddy Craciunescu; Peter Lang; Andrea Murari; Tamás Szepesi; Sándor Kálvin; Gábor Kocsis; Arturo Alonso; Ion Tiseanu; Vasile Zoita; JET EFDA Contributors (literal)
Pagina inizio
  • 1186 (literal)
Pagina fine
  • 1190 (literal)
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  • La rivista è pubblicata anche online con ISSN 1873-7196 (Editore: Elsevier Science SA) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.sciencedirect.com/science/article/pii/S0920379610005879 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 86 (literal)
Rivista
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  • Issues 6-8, ottobre (literal)
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  • 5 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 6-8 (literal)
Note
  • Scopu (literal)
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1 JET-EFDA Culham Science Centre, Abingdon, OX14 3DB, UK. a EURATOM-MEdC Association, Institute for Laser, Plasma and Radiation Physics, Bucharest, Romania; b Association EURATOM-IPP, Max-Planck-Institut für Plasmaphysik, Garching, Germany; c Consorzio RFX, Associazione EURATOM-ENEA per la Fusione, Padova, Italy; d RMKI KFKI, EURATOM Association, Budapest, Hungary; e Laboratorio Nacional de Fusion, EURATOM-CIEMAT, Madrid, Spain. (Teddy Craciunescu a, Peter Lang b, Andrea Murari c, Tamás Szepesi d, Sándor Kálvin d, Gábor Kocsis d, Arturo Alonso e, Ion Tiseanu a, Vasile Zoita a, JET EFDA Contributors 1) (literal)
Titolo
  • Determination of the pellet parameters by image processing methods (literal)
Abstract
  • Injection of solid, cryogenic hydrogen isotope pellets in tokamaks is used for particle fuelling as well as for ELM control. The efficiency depends on technical control variables such as pellet size, velocity, frequency and poloidal launch position. Recently developed image processing methods have been improved and adapted in order to evaluate some of these key parameters. An optical flow method has been used for the determination of the ice extrusion velocity based on the image sequences provided by a CCD camera viewing the ice at the exit of the nozzles of the extrusion cryostat. The reconstruction of pellet volume has been performed using images provided by another CCD camera, coupled to a set of optical barriers used for pellet velocity measurement. A Bayesian statistical analysis has been applied, calculating the probability distribution function of the pellet volume based on three measured parameters of the pellet shadow: area, smallest dimension, largest dimension. (literal)
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