http://www.cnr.it/ontology/cnr/individuo/prodotto/ID272626
Interaction between plasma edge properties and 3D magnetic fields (Abstract/Poster in atti di convegno)
- Type
- Label
- Interaction between plasma edge properties and 3D magnetic fields (Abstract/Poster in atti di convegno) (literal)
- Anno
- 2013-01-01T00:00:00+01:00 (literal)
- Alternative label
M. Agostini; P. Scarin; G. Spizzo; N. Vianello; L. Carraro; C. Rea; A. Scaggion (2013)
Interaction between plasma edge properties and 3D magnetic fields
in Joint 19th ISHW and 16th IEA-RFP workshop, Padova, Italy, September 16-20, 2013
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- M. Agostini; P. Scarin; G. Spizzo; N. Vianello; L. Carraro; C. Rea; A. Scaggion (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni
- http://www.igi.cnr.it/ish_rfp_ws2013/sites/default/files/attachments/poster%20list-webLinks.pdf; Poster number C9. (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
- http://www.igi.cnr.it/ish_rfp_ws2013/sites/default/files/attachments/12_BookOfAbstracts.pdf (literal)
- Note
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Consorzio RFX, Associazione Euratom-ENEA sulla fusione, C.so Stati Uniti 4, Padova, Italy (literal)
- Titolo
- Interaction between plasma edge properties and 3D magnetic fields (literal)
- Abstract
- At high plasma current operation, the edge of RFX-mod reversed field pinch device is characterized
by a magnetic topology which is spontaneously threedimensional, with a magnetic deformation
characterized by a n = -7 modulation. This peculiaredge topology influences the main properties of
the plasma edge, giving them a spatial modulation with the same periodicity. The spatial
modulation of the plasma-wall interaction (PWI) hasbeen characterized, measuring the influxes of
the main gas and of various impurities in differenttoroidal locations of the torus, showing that the
PWI footprint follows the magnetic field one. Usingmeasurements located in different poloidal
positions it is also possible to show that the PWI has a clear m=1 component. PWI is then
correlated with the spatial behaviour of the electron density, temperature and with their gradients
measured at the edge with the thermal helium beam diagnostic; all these quantities are modulated
with the same periodicity of the magnetic field. Then, the influence of the spatial modulation of
these gradients on the high frequency turbulent fluctuations and blobs is shown, allowing to study
the effect of the 3D edge magnetic topology on particle transport.
The strong analogies with the similar edge magnetictopology obtained in Tokamak RMP
experiments make the results here described quite general , proving the beneficial effects of cross-device comparison of similar physical problems. (literal)
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