Plasma for Nuclear Fusion

The following research lines concern thermonuclear controlled fusion and in particular the most ambitious energy projects in the world today, ITER.

Fusion reactor materials

Determination by means of theoretical methods of structural properties and thermal properties of the materials of interest for nuclear fusion reactors.

Negative ion source for neutral beam injection

High power negative ion sources are used as Neutral Beam Injectors (NBI) to heat and drive current in thermonuclear fusion reactor. A negative ion source is required for the production of a high energy neutral beam because the neutralization efficiency for positive ions at 1MeV is negligibly small (compared to a  60% neutralization rate for negative ions).

Different particle-based models have been developed to simulated and optimize ion production, transport, extraction and acceleration through RF-inductive plasma discharge. In particular, electron transport across magnetic filter and negative ion extraction through the grid system is studied considering also alternative configuration in collaboration with RFX consortium and INFN

Plasma boundary physics

One of the characteristic features of the transition between plasma and an absorbing wall is the build-up of an electric space-charge potential at the plasma edge. In tokamaks, this boundary layer is interspersed with a magnetic field hitting wall at some angle. Thereby, the sheath has been shown to be composed of ‘magnetic’ and ‘Debye’ regions. The relatively large width of the magnetic sheath (hundreds of Debye lengths) permits particle interactions with surface-emitted material to be potentially significant and affecting particle, heat transport and the sheath parameters themselves. An adequate reduction of plasma heat and particle fluxes deposited on the plate can be achieved by means of the impurity radiation loss and recombination mechanisms. The present research activity studies by mean of particle-based models the plasma-wall transition region in tokamaks.

Facilities & Labs

P.LAS.M.I. Lab @ Bari

People

Fracnesco_tacccognaFrancesco

Taccogna

CNR Researcher

Pierpaolo_minelliPierpaolo

Minelli

CNR Researcher

Domenico_brunoDomenico

Bruno

CNR Researcher

Publications

  1. F. Taccogna , P. Minelli , and N. Ippolito, Particle model of full-size ITER-relevant negative ion source, Rev. Sci. Instr., 87, 02B306, (2016) ISNN: 0034-6748; doi: 10.1063/1.4932396
  2. F. Taccogna, P. Minelli, S. Longo, Three-dimensional structure of the extraction region of a hybrid negative ion source, Plasma Sources Sci. and Technol., 22, 045019, (2013) ISNN: 0963-0252; doi: 10.1088/0963-0252/22/4/045019
  3. F. Taccogna, P Minelli, P Diomede, S Longo, M Capitelli, R Schneider, Particle modelling of the hybrid negative ion source, Plasma Sources Sci. Technol. 20, 024009 (2011) DOI: 10.1088/0963-0252/20/2/024009
  4. F. Taccogna, P. Minelli, S. Longo, M. Capitelli, R. Schneider, Modeling of a negative ion source III. Two-dimensional structure of the extraction region, Phys. Plasmas 17, 063502, (2010) ISNN: 1070-664X; doi: 10.1063/1.3431635
  5. D. Tskhakaya, S Kuhn, Y Tomita, K Matyash, R Schneider, F Taccogna, Self-Consistent Simulations of the Plasma-Wall Transition Layer, Contributions to Plasma Physics 48 (1‐3), 121-125 (2008) DOI: 1002/ctpp.200810021
  6. F. Taccogna, R Schneider, S Longo and M Capitelli, Modeling of a negative ion source. II. Plasma-gas coupling in the extractionregion, Physics of Plasmas 15 (10), 103502 (2008) DOI: 10.1063/1.2985854

Latest News

Technology Trasfer in Nanotechnology

Technology Transfer in Nanotechnology: Challenges and Opportunity

Lecce, 18/19 ottobre 2018

CNR NANOTEC c/o Campus Ecotekne

JRC in collaboration with the National Research Council (Cnr) is organising a workshop on Technology Transfer in Nanotechnology,

which will take place in CNR Nanotec (Lecce, Italy) on 18 and 19 October. This workshop is organised in the framework of the TTO-CIRCLE initiatives.   The aim of this event is to explore how technology transfer activities can be used as a mechanism to help EU industry, particularly Start-ups and SMEs, and Government in deploying and adopting Nano-technology. Practical examples will be presented to illustrate the potential of technology transfer in this area.   The workshop will gather technology providers, industry executives, technology transfer officers, policy makers and financial intermediaries to share experiences and lessons learned. One of the key objectives is to discuss policy implications at all levels that could help accelerating the adoption of Nanotechnology by the European manufacturing industry. More informations: https://ec.europa.eu/jrc/communities/community/european-tto-circle/event/technology-transfer-nanotechnology Download Locandina

Nanotechnology Transfer Day

26 Luglio 2018 - Lecce

CNR NANOTEC c/o Campus Ecotekne Siglato l’accordo lo scorso maggio tra CNR NANOTEC e Pairstech Capital Management, ha preso il via la collaborazione con PhD TT per la valutazione della ricerca

E’partita la collaborazione con PhD TT per la valorizzazione della ricerca sulla base dell’accordo siglato lo scorso Maggio tra CNR NANOTEC e Pairstech Capital Management, società di gestione patrimoniale che fornisce agli investitori istituzionali e privati un insieme di veicoli di investimento, al fine di valorizzare i risultati della ricerca svolta all'interno dell'Istituto.

Giovedì 19 Luglio dalle ore 11 alle ore 14 nella sede del CNR Nanotec di Lecce si è tenuto un incontro sul trasferimento tecnologico nel settore delle nanotecnologie applicate al settore biomedicale.

L’evento è stato organizzato dall’ufficio di Trasferimento Tecnologico del CNR Nanotec che ha inaugurato con questa giornata un ciclo di eventi mirato a presentare agli attori dell’ecosistema dell’innovazione nel settore delle nanotecnologie i vari modelli e alcune best practice di trasferimento tecnologico. In questa prima giornata il dott. Heber Verri e la dott.ssa Paola Urbani hanno presentato il nuovo modello di trasferimento tecnologico PhD TTãIndex Model.

PhD TT è una realtà italiana completamente indipendente specializzata in trasferimento tecnologico, è un acceleratore organizzato per il Go to Venture Practice, orientata al mondo delle Lifes Sciences.

PhD TT ha sviluppato un nuovo modello di trasferimento tecnologico: il PhD TT©INDEX MODEL dedicato alla generazione di valore dell'innovazione, focalizzato alla riduzione dei rischi delle opportunità di investimento a sostegno della ricerca.

I ricercatori intervengono attivamente nell'analisi iniziale di fattibilità e nella costituzione della futura società (start-up), con l'obiettivo di attrarre capitale di rischio utile a sostenere la fase del trasferimento tecnologico nella visione della "Research for go-to-market".

Il modello PhD TT nasce da un bisogno del mercato, quello di far dialogare due mondi estremamente diversi tra loro: il mondo della ricerca e il mondo degli investimenti.

PhD TT supporta tutte le attività in collaborazione con il TTO - CNR Nanotec con un team di lavoro esperto e grazie a un comitato scientifico-economico qualificato.

In occasione dell'evento del 19/7 u.s. al CNR Nanotec di Lecce, PHD TT ha presentato il proprio track record, dove si sono potuti valutare in dettaglio i casi di successo di intervento del PhD TT©INDEX MODEL.

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Disordered serendipity: a glassy path to discovery

A workshop in honour of Giorgio Parisi’s 70th birthday

September 19-21, 2018 - Roma

Sapienza University

With the occasion of celebrating Giorgio Parisi 70th birthday, the conference "Disordered serendipity: a glassy path to discovery" brings to Rome many among the world-leading experts in the field of complex systems. In order to properly represent the many fields of research where Giorgio Parisi gave a relevant contribution in his studies of disordered systems, the conference covers a broad spectrum of topics: from  fundamental and rigorous analysis of the statistical mechanics of disorder systems to applications in biology and computer science. These subjects are deeply interconnected since they are characterized by the presence of glassy behavior.

 

https://sites.google.com/site/disorderedserendipity/