Zobrazeno 1 - 10
of 505
pro vyhledávání: '"M. Pedroni"'
Autor:
A. Lahtinen, A. Hakola, J. Likonen, M. Balden, K. Krieger, S. Gouasmia, I. Bogdanovic Radovic, G. Provatas, M. Kelemen, S. Markelj, M. Pedroni, A. Uccello, E. Vassallo, D. Dellasega, M. Passoni
Publikováno v:
Nuclear Materials and Energy, Vol 33, Iss , Pp 101266- (2022)
Net erosion of plasma-facing materials was investigated at the low-field-side (outer) strike-point area of the ASDEX Upgrade (AUG) divertor during H-mode discharges with small and frequent ELMs. To this end, Au and Mo marker samples with different su
Externí odkaz:
https://doaj.org/article/09a4f26159984452a9f04c7469b10779
Autor:
R. Arredondo, M. Oberkofler, T. Schwarz-Selinger, U. von Toussaint, V.V. Burwitz, A. Mutzke, E. Vassallo, M. Pedroni
Publikováno v:
Nuclear Materials and Energy, Vol 18, Iss , Pp 72-76 (2019)
The influence of surface roughness on the sputter yield was investigated as a function of the angle of incidence. In this work, nm-smooth and rough samples with roughnesses on the µm length scale were produced by depositing thin Fe and W films on sm
Externí odkaz:
https://doaj.org/article/aa4a40d7c33c42359ef92e79235ecd83
Autor:
P. Tolias, M. De Angeli, G. Riva, S. Ratynskaia, G. Daminelli, L. Laguardia, M. Pedroni, D. Ripamonti, A. Uccello, E. Vassallo
Publikováno v:
Nuclear Materials and Energy, Vol 18, Iss , Pp 18-22 (2019)
The adhesion of tungsten dust is measured on plasma-exposed and non-exposed tungsten substrates with the electrostatic detachment method. Tungsten substrates of comparable surface roughness have been exposed to the deuterium plasmas of the GyM linear
Externí odkaz:
https://doaj.org/article/d2079bed9366439c97909205eec55680
Autor:
A. Cremona, E. Vassallo, E. Alves, F. Causa, S. De Iuliis, R. Dondè, G. Giacomi, G. Gervasini, G. Granucci, M. Iafrati, G. Maddaluno, R. Mateus, D. Minelli, V. Mellera, A. Nardone, M. Pedroni, D. Ricci, V. Rigato, N. Rispoli, A. Uccello
Publikováno v:
Nuclear Materials and Energy, Vol 17, Iss , Pp 253-258 (2018)
The use of tin (Sn) as a liquid metal for plasma facing components has been recently proposed as a solution to the high heat load issue on the divertor target plates in nuclear fusion reactors. Due to its low vapor pressure, low reactivity with hydro
Externí odkaz:
https://doaj.org/article/430e3105f57a4f68b1c36a7aac443f5d
Autor:
P. Tolias, M. De Angeli, S. Ratynskaia, G. Riva, P. Bassani, D. Ripamonti, A. Nardone, M. Pedroni, D. Ricci
Publikováno v:
Nuclear Materials and Energy, Vol 24, Iss , Pp 100765- (2020)
High temperature excursions have the potential to strongly enhance the room temperature adhesion of tokamak dust. Planar tungsten substrates containing adhered nearly monodisperse spherical tungsten dust have been exposed to linear plasmas and vacuum
Externí odkaz:
https://doaj.org/article/953bb7e553a8467482e612b924a8bae5
Publikováno v:
Nuclear Materials and Energy, Vol 24, Iss , Pp 100779- (2020)
In this work, we discuss the exposures of polycrystalline tungsten (W) and nanostructured W coatings to high energy (~30÷300eV) medium-flux D (~1020m-2s-1) deuterium plasmas of the linear machine GyM at an overall fluence of 1024m-2. The energy and
Externí odkaz:
https://doaj.org/article/1e437c9387294e9a8b2430d35f74cc72
Autor:
G. Riva, P. Tolias, S. Ratynskaia, G. Daminelli, R. Donde, M. De Angeli, E. Vassallo, M. Pedroni
Publikováno v:
Nuclear Materials and Energy, Vol 12, Iss , Pp 593-598 (2017)
The first experimental determination of the pull-off force for tungsten dust adhered to tungsten surfaces is reported. Dust deposition is conducted with gas dynamics methods in a manner that mimics sticking as it occurs in the tokamak environment. Ad
Externí odkaz:
https://doaj.org/article/71817135d4b341e3984cefae43c4bcf6
Influence of He and Ar injection on ammonia production in N2/D2 plasma in the medium flux GyM device
Autor:
L. Laguardia, R. Caniello, A. Cremona, G. Gatto, G. Gervasini, F. Ghezzi, G. Granucci, V. Mellera, D. Minelli, R. Negrotti, M. Pedroni, M. Realini, D. Ricci, N. Rispoli, A. Uccello, E. Vassallo
Publikováno v:
Nuclear Materials and Energy, Vol 12, Iss , Pp 261-266 (2017)
Nitrogen used to reduce the power load onto the divertor in tokamak fusion devices (JET, AUG) has the drawback of ammonia formation. Non-negligible quantity of tritiated ammonia could be a serious concern for ITER, since it cannot be reduced through
Externí odkaz:
https://doaj.org/article/2b8f442c7484494da32b2570bf785d7a
Autor:
R. Caniello, A. Uccello, F. Ghezzi, D. Minelli, I. Bogdanović Radović, Z. Siketić, A. Cremona, F. Dell'Era, G. Gittini, V. Mellera, F. Pallotta, M. Pedroni, D. Ricci, N. Spinicchia, E. Vassallo
Publikováno v:
Nuclear Materials and Energy, Vol 10, Iss C, Pp 9-16 (2017)
Iron-tungsten (Fe-W) mixed films were exposed to the low flux deuterium plasma of GyM in order to study the behavior of the sputtering yield with the ion fluence and temperature of the samples. From literature, it is known that an increase of the for
Externí odkaz:
https://doaj.org/article/74302450c6424daa96657303e5e322a8
Publikováno v:
Drinking Water Engineering and Science, Vol 7, Iss 2, Pp 93-97 (2014)
Pump speed, input power, pressure and discharge data are analyzed for evaluating functioning conditions of Casale pumping station in Mantova, Italy, managed by TeaAcque. A model based on the affinity laws is used to simulate the behavior of the insta
Externí odkaz:
https://doaj.org/article/d9faeb71c07942d18a1f840fa0a51101