Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Ch. Nieswand"'
Publikováno v:
Plasma Physics and Controlled Fusion. 40:2073-2080
Combined interferometer and polarimeter systems, using a single detecting element per line of sight, are susceptible to perturbation of the interferometric phase when modulation of the polarization vector is applied. This issue has been investigated
Autor:
H. Weisen, J-M Moret, Ch. Nieswand, S. Franke, Y. R. Martin, B. Joye, F. Hofmann, B. P. Duval, Z.A. Pietrzyk, R. Behn, W. van.Toledo, M. Anton
Publikováno v:
Physical Review Letters. 79:2057-2060
The energy confinement time of TCV Ohmic, L-mode discharges is observed to depend strongly on the plasma shape, improving slightly with elongation and degrading strongly as triangularity is increased from zero to positive values. The thermal conducti
Autor:
A. Perez, B. Joye, Jean-Marc Moret, A. Favre, G. Tonetti, J.-C. Magnin, René Chavan, D. J. Ward, Y. R. Martin, Z.A. Pietrzyk, F. Hofmann, R. Behn, M. Anton, B. Marletaz, M.J. Dutch, R.A. Pitts, J.-M. Mayor, F. Troyon, P. Lavanchy, B. P. Duval, W. van.Toledo, X. Llobet, P. F. Isoz, Minh Quang Tran, Damien Fasel, A. Hirt, H. Weisen, P. Mandrin, F. Buhlmann, Olivier Sauter, Ph. Marmillod, S. Franke, G. Besson, J.B. Lister, Ch. Nieswand, P. J. Paris, A. Pochelon
Publikováno v:
Plasma Physics and Controlled Fusion. 38:1137-1148
The TCV tokamak has obtained ohmic H-modes in virtually all diverted plasmas with the ion del B drift directed towards an X-point and in several elongated limiter plasmas. Troyon factors (beta(tor)aB/l(p)) up to 2 and line average densities up to 2.2
Publikováno v:
Review of Scientific Instruments. 67:1814-1817
On many tokamaks the reconstruction of the magnetic field structure in the plasma is supported by polarimetric measurements. Recent proposed and realized methods are based on a far‐infrared laser beam with a rotating polarization ellipse. The same
Autor:
H. Weisen, B. Marletaz, B. Joye, W. van.Toledo, S. Bernel, F. Hofmann, J.B. Lister, R. Behn, F. Troyon, Olivier Sauter, A. Heym, Ch. Nieswand, M.J. Dutch, Ch. Hollenstein, S. Franke, R.A. Pitts, A. Favre, F. Buhlmann, A. Perez, P. J. Paris, M. Anton, René Chavan, G. Tonetti, Jean-Marc Moret, P. F. Isoz, X. Llobet, Y. R. Martin, B. P. Duval, Minh Quang Tran, A. Pochelon, Damien Fasel, Ph. Marmillod, D. J. Ward, Z.A. Pietrzyk
Publikováno v:
Czechoslovak Journal of Physics. 45:1095-1110
During the first two years of operation, the TCV tokamak has produced a large variety of plasma shapes and magnetic configurations, with 1.0 less than or equal to B-tor less than or equal to 1.46T, I-p less than or equal to 800kA, kappa less than or
Publikováno v:
Journal of Applied Physics. 77:981-984
The third‐harmonic generation of far‐infrared (FIR) laser radiation in n‐doped silicon was measured with full temporal resolution of the power fluctuations during the FIR laser pulse. Thus, the intensity dependence of the nonlinear coefficient
Publikováno v:
Infrared Physics & Technology. 36:407-414
In future fusion-oriented plasma devices alpha-particle diagnostics will be of great importance. It is generally recognized that collective Thomson scattering techniques show great potential in this field. For ion temperature measurements as well as
Autor:
A. Pochelon, J. Hackmann, B.P. Duval, B. Joye, M.R. Siegrist, G. Soumagne, J.B. Lister, D. Dicken, D.C. Yuan, R. Behn, Ch. Nieswand
Publikováno v:
Journal of Applied Physics. 69:1993-1998
Collective Thomson scattering, using a high-power pulsed D2O laser at 385-mu-m and a heterodyne receiver system, has provided local ion temperature (T(i)) measurements of the plasma in the tokamak chauffage Alfven (TCA) tokamak. Recent improvements i
Autor:
A. Pochelon, Z.A. Pietrzyk, Ch. Nieswand, Olivier Sauter, Jean-Marc Moret, Timothy Goodman, Francesco Porcelli, H. Weisen, K. A. Razumova, J. Rommers, Jean-Philippe Hogge, Minh Quang Tran, R. Behn, H. Reimerdes, M. A. Henderson, W. van.Toledo, Ivo Furno
Publikováno v:
Politecnico di Torino-IRIS
During initial studies of ECRH in the TCV tokamak, non-standard central MHD activities, such as humpbacks and saturated and inverted sawteeth, have been observed while changing the heating location, the ECRH power, the plasma shape and the safety fac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9d6d4290d0e545bd2123c8f9e78c5395
http://hdl.handle.net/11583/1404272
http://hdl.handle.net/11583/1404272
Autor:
S. E. Segre, Ch. Nieswand, A. J. H. Donné, T. Edlington, P. E. Stott, Chris Walker, H. R. Koslowski, E. Joffrin
Publikováno v:
Review of scientific instruments 70, 2622-2627 (1999).
Review of Scientific Instruments, 70, 726-729
Review of Scientific Instruments, 70, 726-729
The polarimeter system for ITER features 10 viewing chords covering almost the full poloidal cross section of the plasma in a fan-like arrangement. The 10 laser beams all enter the plasma via 150 mm diam penetrations through the diagnostic plug at th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4940ee1005ba47cea5317da97d8c5d65
https://hdl.handle.net/2128/2320
https://hdl.handle.net/2128/2320