Zobrazeno 1 - 10
of 174
pro vyhledávání: '"Bernhard Piosczyk"'
Autor:
Konstantinos A. Avramidis, Bernhard Piosczyk, John Jelonnek, Gerd Gantenbein, Ioannis Gr. Pagonakis, T. Kobarg, Tomasz Rzesnicki, Manfred Thumm, Zisis C. Ioannidis, Stefan Illy
Publikováno v:
IEEE transactions on electron devices, 65 (6), 2321-2326
Single-stage depressed collector systems are widely used in high-power gyrotrons in order to increase the overall efficiency. The position where the deceleration of the beam takes place influences the collector efficiency. In this paper, several dece
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5d04f0f8ab439ec03d3d27a907b11f94
https://doi.org/10.1109/ted.2017.2784185
https://doi.org/10.1109/ted.2017.2784185
Autor:
Stefan Illy, Gerd Gantenbein, Bernhard Piosczyk, Andrey Samartsev, Konstantinos A. Avramidis, Tomasz Rzesnicki, Ioannis Gr. Pagonakis, A. Malygin, Sebastian Ruess, Manfred Thumm, John Jelonnek, Günter Dammertz, Jianghua Zhang
Publikováno v:
IEEE Transactions on Electron Devices. 64:1315-1322
In order to evaluate the emission inhomogeneity of thermionic gyrotron cathode emitters, a novel definition of emission inhomogeneity and evaluating method from the current–voltage characteristics is described in this paper. Results for three diffe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d50411e7231b8381897d671366f4cd9b
https://doi.org/10.1109/ted.2017.2655147
https://doi.org/10.1109/ted.2017.2655147
Autor:
G. Dammertz, Bernhard Piosczyk, H.U. Nickel, M. Kuntze, G. Gantenbein, Manfred Thumm, Arnold Moebius, Edith Borie
Publikováno v:
18th International Conference on Infrared and Millimeter Waves.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::919ae681c6dbfe6e09d264d565ab003e
https://doi.org/10.1117/12.2298694
https://doi.org/10.1117/12.2298694
Autor:
Manfred Thumm, Ioannis Gr. Pagonakis, Bernhard Piosczyk, K.A. Avramides, David Marsden, Stefan Illy, George Collins, John Jelonnek, Robert Lawrence Ives, A. Malygin, Joerg Weggen, Stefan Kern
Publikováno v:
IEEE Transactions on Plasma Science. 41:2717-2723
In this paper, the design of a 10-kW/28-GHz gyrotron is presented. The main characteristic of the new gyrotron is the emitter ring, which is assembled from twelve individually supplied emitters based on controlled-porosity reservoir (CPR) technology.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::99c40b625f8f5a4eba9b9700bad1c08e
https://doi.org/10.1109/tps.2013.2255069
https://doi.org/10.1109/tps.2013.2255069
Autor:
Bernhard Piosczyk, Stefan Illy, Ioannis Gr. Pagonakis, Jianghua Zhang, Guenter Dammertz, Gerd Gantenbein, Manfred Thumm, John Jelonnek
Publikováno v:
2016 41st International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz).
Manufacturing tolerances at the emitter ring region of a high power gyrotron cathode structure can have a dramatic effect on the electron beam quality, and, finally, are determining the gyrotron performance which will be achieved. A sensitivity analy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0dfeb9d3992663365f04395036e6ecd8
https://doi.org/10.1109/irmmw-thz.2016.7758525
https://doi.org/10.1109/irmmw-thz.2016.7758525
Autor:
Andreas Schlaich, Jens Flamm, George P. Latsas, Stefan Illy, Manfred Thumm, Andrey Samartsev, Bernhard Piosczyk, Günter Dammertz, Gerd Gantenbein, Ioannis G. Tigelis, Stefan Kern, Tomasz Rzesnicki
Publikováno v:
IEEE Transactions on Plasma Science. 38:1168-1177
Megawatt gyrotrons are found to suffer from various parasitic oscillations, in particular, RF oscillations in the beam tunnel prior to the desired interaction zone (the cavity). This paper describes the experimental results from a gyrotron experiment
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39c71356b7d4fb5fce5225247d1dcb9b
https://doi.org/10.1109/tps.2010.2041366
https://doi.org/10.1109/tps.2010.2041366
Autor:
Bernhard Piosczyk, Andreas Schlaich, Stefan Illy, Andrey Samartsev, Jianbo Jin, Manfred Thumm, Tomasz Rzesnicki, Stefan Kern
Publikováno v:
IEEE Transactions on Plasma Science. 38:1141-1149
A 2-MW continuous-wave (CW) 170-GHz coaxial-cavity gyrotron for electron cyclotron heating and current drive in the International Thermonuclear Experimental Reactor (ITER) is under development within the European Gyrotron Consortium (EGYC1), a cooper
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77ea7b769a493d3bbc4cc1458e4d16aa
https://doi.org/10.1109/tps.2010.2040842
https://doi.org/10.1109/tps.2010.2040842
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 57:1661-1668
A numerical method for the analysis of the fields in highly oversized waveguides is proposed in this paper. This method allows the simulation of the fields on waveguide walls with arbitrary surface deformations in the case that the waveguide is highl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8d066511df5820888aa42a94a0673cf
https://doi.org/10.1109/tmtt.2009.2021878
https://doi.org/10.1109/tmtt.2009.2021878
Publikováno v:
Fusion Engineering and Design. 84:1734-1738
The high voltage/high power DC-cathode power supply for the Gyrotron Test Facility at the Forschungszentrum in Karlsruhe consists of a 12-pulse thyristor star-point-controller, a 130 kV capacitor-bank followed by a tetrode regulator. Originally desig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af5b4877d14e7b72e388c19d94f9434e
https://doi.org/10.1016/j.fusengdes.2009.01.059
https://doi.org/10.1016/j.fusengdes.2009.01.059
Autor:
Sudheer Jawla, Bernhard Piosczyk, S. Alberti, T. Goodman, Jean-Philippe Hogge, Tomasz Rzesnicki
Publikováno v:
IEEE Transactions on Plasma Science. 37:414-424
We report the experimental results of the infrared measurements of output RF beam of the European 2-MW 170-GHz coaxial cavity gyrotron for ITER. The output beam profile is measured by the infrared thermographic technique using an infrared camera and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::47a8b1b8bb31b92808ae3a44c06f5548
https://doi.org/10.1109/tps.2008.2011488
https://doi.org/10.1109/tps.2008.2011488