Zobrazeno 1 - 10 of 72 pro vyhledávání: '"J.P. Hogge"'
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Experimental investigation of a 140-GHz coaxial gyrotron oscillator
Autor: Richard J. Temkin, J.P. Hogge, K.E. Kreischer, R. Advani, M. Pedrozzi, Jagadishwar R. Sirigiri, Michael Read
Publikováno v: IEEE Transactions on Plasma Science. 29:943-950
We report experimental results on a megawatt power level, 140-GHz coaxial gyrotron oscillator. The gyrotron has an inverted magnetron injection gun (IMIG) designed for operation at up to 95 kV and 88 A. The IMIG has an inner grounded anode which exte
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e76e28a50c59beb12a76026f700447d4
https://doi.org/10.1109/27.974983
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Design of a 3-MW 140-GHz gyrotron with a coaxial cavity
Autor: Gregory S. Nusinovich, Michael Read, G. Bird, M. Blank, Olgierd Dumbrajs, K.E. Kreischer, J.P. Hogge
Publikováno v: IEEE Transactions on Plasma Science. 24:586-595
A design for a 3-MW 140-GHz gyrotron based on the use of a coaxial cavity is given. The cavity mode is TE/sub 21,13/, chosen so that the ohmic heating on both the inner and outer conductors would be low enough for CW operation. The mode selection pro
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5d9a5e9080baa83dc8a83f3fff881e80
https://doi.org/10.1109/27.532941
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4
An overview of the ITER electron cyclotron H&CD system
Autor: M. Henderson, F. Albajar, S. Alberti, U. Baruah, T. Bigelow, B. Becket, R. Bertizzolo, T. Bonicelli, A. Bruschi, J. Caughman, R. Chavan, S. Cirant, A. Collazos, C. Darbos, M. deBaar, G. Denisov, D. Farina, F. Gandini, T. Gassman, T.P. Goodman, R. Heidinger, J.P. Hogge, O. Jean, K. Kajiwara, W. Kasparek, A. Kasugai, S. Kern, N. Kobayashi, J.D. Landis, A. Moro, C. Nazare, J. Oda, I. Paganakis, P. Platania, B. Plaum, E. Poli, L. Porte, B. Piosczyk, G. Ramponi, S.L. Rao, D. Rasmussen, D. Ronden, G. Saibene, K. Sakamoto, F. Sanchez, T. Scherer, M. Shapiro, C. Sozzi, P. Spaeh, D. Strauss, O. Sauter, K. Takahashi, A. Tanga, R. Temkin, M. Thumm, M.Q. Tran, H. Zohm, C. Zucca
Publikováno v: 34th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2009), pp. 898–901, Busan, SOUTH KOREA, SEP 21-25, 2009
info:cnr-pdr/source/autori:M. Henderson; F. Albajar; S. Alberti; U. Baruah; T. Bigelow; B. Becket; R. Bertizzolo; T. Bonicelli; A. Bruschi; J. Caughman; R. Chavan; S. Cirant; A. Collazos; C. Darbos; M. deBaar; G. Denisov; D. Farina; F. Gandini; T. Gassman; T.P. Goodman; R. Heidinger; J.P. Hogge; O. Jean; K. Kajiwara; W. Kasparek; A. Kasugai; S. Kern; N. Kobayashi; J.D. Landis; A. Moro; C. Nazare; J. Oda; I. Paganakis; P. Platania; B. Plaum; E. Poli; L. Porte; B. Piosczyk; G. Ramponi; S.L. Rao; D. Rasmussen; D. Ronden; G. Saibene; K. Sakamoto; F. Sanchez; T. Scherer; M. Shapiro; C. Sozzi; P. Spaeh; D. Strauss; O. Sauter; K. Takahashi; A. Tanga; R. Temkin; M. Thumm; M.Q. Tran; H. Zohm; and C. Zucca/congresso_nome:34th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2009)/congresso_luogo:Busan, SOUTH KOREA/congresso_data:SEP 21-25, 2009/anno:2009/pagina_da:898/pagina_a:901/intervallo_pagine:898–901
This Paper reviews the design and functionality of the 24MW 170GHz electron cyclotron heating and current drive system being planned for the ITER Tokamak. The sub-systems (power supplies, gyrotrons, transmission lines and launcher antennas) are descr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=cnr_________::5debe990b058b3522758c9757e0da8b4
http://www.cnr.it/prodotto/i/260849
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Experimental Results on the 140 GHz, 1 MW, CW Gyrotrons for the Stellarator W7-X
Autor: G. Dammertz, S. Alberti, J.P. Hogge, M.Q. Tran, A. Arnold, M. Thumm, H. Braune, V. Erckmann, G. Michel, H. Laqua, P. Brand, G. Gantenbein, W. Kasparek, G. Muller, D. Bariou, E. Giguet, F. Legrand, C. Lievin, E. Borie, S. Illy, K. Koppenburg, W. Leonhardt, G. Neffe, B. Piosczyk, M. Schmid, R. Heidinger
Publikováno v: 2005 Joint 30th International Conference on Infrared and Millimeter Waves and 13th International Conference on Terahertz Electronics.
The development of high power gyrotrons (118 GHz, 140 GHz) in continuous wave operation (CW) has been in progress for several years in a joint collaboration between different European research institutes and industrial partners. In this frame, two 14
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c16c39a9aa4852bbe2bc693312528327
https://doi.org/10.1109/icimw.2005.1572495
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High power operation of a 17 GHz photocathode RF gun
Autor: M. Khusid, S. Trotz, W.J. Brown, Richard J. Temkin, Michael Shapiro, B.G. Danly, K.E. Kreischer, J.P. Hogge
Publikováno v: The seventh workshop on advanced accelerator concepts.
We report the first operation of a 17 GHz RF photocathode electron gun. This is the first photocathode electron gun to operate at a frequency above 2.856 GHz. Such electron guns have the potential for achieving record high values of electron beam qua
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8af5f2251e9c8c6f0dd1245f25223ac5
https://doi.org/10.1063/1.53073
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Testing of a 3 MW, 140 GHz coaxial cavity gyrotron
Autor: Michael Read, Olgierd Dumbrajs, K.E. Kreischer, Gregory S. Nusinovich, J.P. Hogge
Publikováno v: International Conference on Plasma Science (papers in summary form only received).
Summary form only given. A gyrotron designed to produce 3 MW at 140 GHz has been realized and tested. The cavity is coaxial with a desired operating mode of TE/sub 21, 13/. The coaxial cavity was designed to have peak ohmic heating of 2.9 kW/cm/sup 2
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::81275efe6d4a2dffe0f630c0f6278dbe
https://doi.org/10.1109/plasma.1995.531459
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Development of a high-power THz radiation source for plasma diagnostics
Autor: J.P. Hogge, Henrik Bindslev, M.R. Siegrist, R. Raguotis, Ph. Moreau, R. Brazis, D. Guyomarc'h
Publikováno v: Infrared Physics & Technology, 40, 247-259
A high power radiation source in the THz range with long pulse and narrow line width is required for diagnosing fusion type plasmas by collective Thomson scattering. Gyrotrons currently meet the requirements concerning power, pulse length and line wi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d707964bc21f80abeac1421c1a966df1
https://infoscience.epfl.ch/record/121170
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10
Third-Order Susceptibility of Silicon Crystals Measured with Millimeter-Wave Gyrotron
Autor: R. Brazis, R. Narkowicz, M.R. Siegrist, R. Raguotis, Ph. Moreau, J.P. Hogge
We investigate experimental dependence of the third harmonic generation efficiency in the n-type Si crystals on the geometrical dimensions of the sample, polarization and power of the fundamental wave. The efficiency increases monotonically with the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e5c0e547dd83cfc0c7f30b06f3ea7070
https://infoscience.epfl.ch/record/171623
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