Search Results - "Kuntze, M"

Development of a 140-GHz 1-MW continuous wave gyrotron for the W7-X stellarator by Dammertz, G., Alberti, S., Arnold, A., Borie, E., Erckmann, V., Gantenbein, G., Giguet, E., Heidinger, R., Hogge, J.P., Illy, S., Kasparek, W., Koppenburg, K., Kuntze, M., Laqua, H.P., LeCloarec, G., LeGoff, Y., Leonhardt, W., Lievin, C., Magne, R., Michel, G., Muller, G., Neffe, G., Piosczyk, B., Schmid, M., Schworer, K., Thumm, M.K., Tran, M.Q.

“…The development of high-power gyrotrons (118 GHz, 140 GHz) in continuous-wave (CW) operation for heating nuclear fusion plasmas has been in progress for…”
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Frequency step-tunable (114–170 GHz) megawatt gyrotrons for plasma physics applications by Thumm, M, Arnold, A, Borie, E, Braz, O, Dammertz, G, Dumbrajs, O, Koppenburg, K, Kuntze, M, Michel, G, Piosczyk, B

“…Successful gyrotron experiments at FZK employing a conventional hollow cylindrical waveguide cavity, a quasi-optical mode converter with dimple-type launcher,…”
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Coaxial cavity gyrotron- recent experimental results by Piosczyk, B., Arnold, A., Dammertz, G., Dumbrajs, O., Kuntze, M., Thumm, M.K.

“…The feasibility of fabrication of coaxial cavity gyrotrons with an output power up to 2 MW, continuous wave (CW) has been demonstrated and information…”
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Fast frequency-step-tunable high-power gyrotron with hybrid-magnet-system by Koppenburg, K., Dammertz, G., Kuntze, M., Piosczyk, B., Thumm, M.

“…The TE/sub 22,6/ 1 MW gyrotron operated at Forschungszentrum Karlsruhe (FZK) at frequencies between 114 and 166 GHz has been investigated with respect to the…”
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Towards a 2 MW, CW, 170 GHz coaxial cavity gyrotron for ITER by Piosczyk, B., Arnold, A., Budig, H., Dammertz, G., Dumbrajs, O., Drumm, O., Kartikeyan, M.V., Kuntze, M., Thumm, M., Yang, X.

“…The development work on coaxial cavity gyrotrons has demonstrated the feasibility of manufacturing of a 2 MW, CW 170 GHz tube that could be used for ITER. The…”
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Modification of virtual reality combined with a mental task stimulates cortisol in volunteers by Hemmeter, U, Stormer, R, Mager, R, Kuntze, M, Mueller-Spahn, F, Hennig, J, Amditis, A, Bekiaris, A, Bullinger, A

“…Immersive, stereoscopic virtual reality (VR) systems provide a powerful multimedia tool for a laboratory simulation of distinct scenarios including stressful…”
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Step-frequency operation of a coaxial cavity gyrotron from 134 to 169.5 GHz by Piosczyk, B., Arnold, A., Dammertz, G., Kuntze, M., Michel, G., Lamba, O.S., Thumm, M.K.

“…Experiments on frequency step tuning have been performed in a coaxial cavity gyrotron equipped with a Brewster window. In single-mode operation, 19 different…”
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Power modulation capabilities of the 140 GHz/1 MW gyrotron for the stellarator Wendelstein 7-X by Dammertz, G., Alberti, S., Fasel, D., Giguet, E., Koppenburg, K., Kuntze, M., Legrand, F., Leonhardt, W., Lievin, C., Müller, G., Neffe, G., Piosczyk, B., Schmid, M., Sterk, A., Thumm, M., Tran, M.Q., Verhoeven, A.G.A

“…In current tokamaks and, in particular, in future larger devices such as ITER, the control of neo-classical tearing modes (NTM) is essential for achieving high…”
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165 GHz, 1.5 MW-coaxial cavity gyrotron with depressed collector by Piosczyk, B., Braz, O., Dammertz, G., Iatrou, C.T., Illy, S., Kuntze, M., Michel, G., Thumm, M.

“…A further step in the development of a coaxial-cavity gyrotron operated in the transverse electric TE/sub -31,17/ mode at 165 GHz is presented. The gyrotron…”
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140-GHz gyrotron with multimegawatt output power by Dammertz, G., Borie, E., Iatrou, C.T., Kuntze, M., Piosczyk, B., Thumm, M.K.

“…The operational features of a 140-GHz, transverse electric TE/sub 22,6/ mode gyrotron oscillator with an advanced quasi-optical mode converter, a Brewster…”
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Advanced high-power gyrotrons by Kuntze, M., Alberti, S., Dammertz, G., Giguet, E., Illy, S., Heidinger, R., Koppenburg, K., LeCloarec, G., LeGoff, Y., Leonhardt, W., Piosczyk, B., Schmid, M., Thumm, M.K., Tran, M.Q.

“…Gyrotrons at high frequency with high-output power are mainly developed for microwave heating and current drive in plasmas for thermonuclear fusion. For the…”
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Design and experimental operation of a 165-GHz, 1.5-MW, coaxial-cavity gyrotron with axial RF output by Iatrou, C.T., Braz, O., Dammertz, G., Kern, S., Kuntze, M., Piosczyk, B., Thumm, M.

“…The development of a coaxial-cavity gyrotron operating in TE/sub 31,17/ mode at 165 GHz is presented. The selection of the operating frequency and mode are…”
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Carriage of Staphylococcus aureus Among Injection Drug Users: Lower Prevalence in an Injection Heroin Maintenance Program Than in an Oral Methadone Program by Bassetti, Stefano, Wolfisberg, Lea, Jaussi, Barbara, Frei, Reno, Kuntze, Marcus F., Battegay, Manuel, Widmer, Andreas F.

“…To compare the prevalence of Staphylococcus aureus and methicillin-resistant S. aureus (MRSA) carriage among injection drug users (IDUs) treated in an…”
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Long-pulse operation of a 0.5 MW TE10.4 gyrotron at 140 GHz by Dammertz, Gunter, Braz, Oliver, Iatrou, Christos T, Kuntze, M

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Mutation induction by continuous low dose rate gamma irradiation in human cells by Kiefer, J, Kohlpoth, M, Kuntze, M

“…Human teratocarcinoma cells P3 were subjected to 60Co-gamma-rays in continuous exponential growth using a “chemostat” set-up. Mutations at the HPRT-locus were…”
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Long-pulse operation of a 0.5 MW TE(10.4) gyrotron at 140 GHz by Dammertz, G, Brat, O, Iatrou, C T, Kuntze, M, Mobius, A, Piosczyk, B, Thumm, M

“…The operation features of a TE(10.4)-mode gyrotron oscillator with a quasi-optical mode converter and a single-stage depressed collector at 140 GHz with an…”
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Development of gyrotrons with 2 MW output power by Kuntze, M, Arnold, A, Borie, E, Dammertz, G, Illy, S, Koppenburg, K, Piosczyk, B, Thumm, M

“…A TE 22,6 gyrotron with conventional hollow cylindrical resonator has attained a maximum output power of 2.1 MW at 140 GHz and an efficiency of 34% (53% with…”
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Coaxial cavity gyrotron with dual RF beam output by Piosczyk, B., Braz, O., Dammertz, G., Iatrou, C.T., Illy, S., Kuntze, M., Michel, G., Mobius, A., Thumm, M., Flyagin, V.A., Khishnyak, V.I., Pavelyev, A.B., Zapevalov, V.E.

“…A 140-GHz, 1.5-MW, TE/sub 28,16/-coaxial cavity gyrotron with a dual RF beam output has been designed, built, and tested. For the first time, the generated RF…”
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Recent results of the 1-MW, 140-GHz, TE/sub 22,6/-mode gyrotron by Dammertz, G., Braz, O., Chopra, A.K., Koppenburg, K., Kuntze, M., Piosczyk, B., Thumm, M.

“…The TE/sub 22,6/-mode gyrotron operated at Forschungszentrum Karlsruhe at a frequency of 140 GHz has been investigated with respect to the behavior of…”
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Analysis of sealing ability of endodontic cements apical plugs by Cechella, Bruna, de Almeida, Josiane, Kuntze, Morgane, Felippe, Wilson

“…It is unknown whether the bioactivity of Biodentine characterized by the precipitation of hydroxyapatite and formation of tags into the dentinal tubules…”
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