Zobrazeno 1 - 10
of 331
pro vyhledávání: '"R Behrisch"'
Autor:
D. E. Post, R. Behrisch
Controlled thermonuclear fusion is one of the possible candidates for long term energy sources which will be indispensable for our highly technological society. However, the physics and technology of controlled fusion are extremely complex and still
Publikováno v:
Journal of Nuclear Materials. :388-392
For a next-step fusion device the erosion at the vessel walls during normal operation caused by the bombardment with different species from the plasma is estimated. The wall fluxes are calculated for a given ‘burning’ plasma with the computer cod
Autor:
Stefan Lindig, E. Oyarzabal, M. Balden, J. Echeberria, Carmen García-Rosales, N. Ordás, R. Behrisch
Publikováno v:
Journal of Nuclear Materials. :1282-1288
The possibilities for optimization of doped fine grain graphites with high thermal conductivity and high thermal shock resistance are demonstrated at laboratory scale. A mixture of MCMB powder and different carbides (B4C, TiC, VC, ZrC and WC) was use
Autor:
L. Rohrer, Eckehart Nolte, V. Lazarev, R. Behrisch, P. Hartung, J. Roth, F. Kubo, C. Stan-Sion
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 192:331-338
At the Accelerator Laboratory of Ludwig Maximilian University (LMU) and Technical University Munich (TUM) Garching, Germany, the ultra-clean injector of the accelerator mass spectrometry facility was upgraded in order to permit depth profiling of sam
Autor:
R. Behrisch
Publikováno v:
Contributions to Plasma Physics. 42:431-444
In high temperature plasma experiments several processes contribute to erosion and loss of material from the vessel walls. This material may enter the plasma edge and the central plasma where it acts as impurities. It will finally be re-deposited at
Publikováno v:
Fusion Engineering and Design. :325-330
Doping of carbon leads to a reduction of chemical erosion. This reduction is more effective if dopants are in the form of sub-μm precipitates with a very homogeneous distribution. However, dopants should not degrade but rather improve the thermal co
Publikováno v:
Journal of Nuclear Materials. :52-56
Several carbide-doped (SiC, TiC, V 8 C 7 , WC, ZrC) graphites have been produced. The erosion of these materials at low-energy (eV) hydrogen ion bombardment has been investigated using the weight-loss method, mass spectroscopy, ion beam analysis, and
Publikováno v:
Journal of Nuclear Materials 275 (1999) 158-163
13th international conference on plasma surface interactions in controlled fusion devices, San Diego, USA, 18.-22. Mai, 1998
13th international conference on plasma surface interactions in controlled fusion devices, San Diego, USA, 18.-22. Mai, 1998
The interaction of nitrogen ions with carbon films is investigated in view of the nitrogen recycling behavior on carbon divertor targets during plasma operation with nitrogen gas puffing. Nitrogen ion implantation is carried out in the energy range b
Autor:
Ch. Edelmann, Carmen García-Rosales, R. Behrisch, P. Franzen, Wolfram Knapp, James Becker, D. Schleussner, D. Rosler
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 17:2785-2790
An experimental setup that allows quantitative measurements of the temperature programmed desorption of different gases from any sample is described. The samples to be analyzed are uniformly heated to temperatures up to 2100 K by electron bombardment
Autor:
D Schleußner, H Maier, P Franzen, R Behrisch, M Balden, null The ASDEX-Upgrade Team, M Perl, W Knapp, Chr Edelmann
Publikováno v:
Journal of Nuclear Materials. :1296-1302
The total hydrogen isotope inventories in the tungsten coated divertor tiles of ASDEX-Upgrade were measured by thermal desorption spectroscopy (TDS) and - in the near surface region - by nuclear reaction analysis (NRA). The highest amounts of deuteri