Status of development of the 2MW, 170GHz coaxial-cavity gyrotron for ITER

Alberti, S; Albajar, F; Avramides, KA; Benin, P; Bin, W; Bonicelli, T; Bruschi, A; Cirant, S; Droz, E; Dumbrajs, O; Fasel, D; Gandini, F; Goodman, T; Hogge, J-P; Illy, S; Jawla, S; Jin, J; Kern, S; Lievin, C; Marletaz, B; Marmillod, Ph; Pagonakis, I; Perez, A; Piosczyk, B; Porte, L; Rzesnicki, T; Siravo, U; Thumm, M; Tran, MQ

dc.contributor.author	Alberti, S	en
dc.contributor.author	Albajar, F	en
dc.contributor.author	Avramides, KA	en
dc.contributor.author	Benin, P	en
dc.contributor.author	Bin, W	en
dc.contributor.author	Bonicelli, T	en
dc.contributor.author	Bruschi, A	en
dc.contributor.author	Cirant, S	en
dc.contributor.author	Droz, E	en
dc.contributor.author	Dumbrajs, O	en
dc.contributor.author	Fasel, D	en
dc.contributor.author	Gandini, F	en
dc.contributor.author	Goodman, T	en
dc.contributor.author	Hogge, J-P	en
dc.contributor.author	Illy, S	en
dc.contributor.author	Jawla, S	en
dc.contributor.author	Jin, J	en
dc.contributor.author	Kern, S	en
dc.contributor.author	Lievin, C	en
dc.contributor.author	Marletaz, B	en
dc.contributor.author	Marmillod, Ph	en
dc.contributor.author	Pagonakis, I	en
dc.contributor.author	Perez, A	en
dc.contributor.author	Piosczyk, B	en
dc.contributor.author	Porte, L	en
dc.contributor.author	Rzesnicki, T	en
dc.contributor.author	Siravo, U	en
dc.contributor.author	Thumm, M	en
dc.contributor.author	Tran, MQ	en
dc.date.accessioned	2014-03-01T02:51:49Z
dc.date.available	2014-03-01T02:51:49Z
dc.date.issued	2008	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/35670
dc.subject.other	Beam parameters	en
dc.subject.other	Coaxial cavity gyrotrons	en
dc.subject.other	Collaborative efforts	en
dc.subject.other	Depressed collectors	en
dc.subject.other	Electron beam powers	en
dc.subject.other	European fusion development agreements	en
dc.subject.other	European researches	en
dc.subject.other	High voltages	en
dc.subject.other	Power supplies	en
dc.subject.other	RF optimizations	en
dc.subject.other	RF powers	en
dc.subject.other	Short pulses	en
dc.subject.other	Single modes	en
dc.subject.other	Stand offs	en
dc.subject.other	Test phases	en
dc.subject.other	Antennas	en
dc.subject.other	Distributed computer systems	en
dc.subject.other	Electron beams	en
dc.subject.other	Electron guns	en
dc.subject.other	Electron tubes	en
dc.subject.other	Experimental reactors	en
dc.subject.other	Gyrotrons	en
dc.subject.other	Millimeter wave devices	en
dc.subject.other	Millimeter waves	en
dc.subject.other	Particle beams	en
dc.subject.other	Testing	en
dc.subject.other	Test facilities	en
dc.title	Status of development of the 2MW, 170GHz coaxial-cavity gyrotron for ITER	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1109/ICIMW.2008.4665577	en
heal.identifier.secondary	http://dx.doi.org/10.1109/ICIMW.2008.4665577	en
heal.identifier.secondary	4665577	en
heal.publicationDate	2008	en
heal.abstract	A collaborative effort between European research Associations and Thales Electron Devices (TED) has been launched by the European Fusion Development Agreement (EFDA) in 2003, aiming at the development of an industrial 170GHz/2MW/CW coaxial cavity gyrotron. The first prototype is expected to reach 2MW/1s and is presently being tested in Lausanne at a dedicated test facility. The test facility has been designed to be flexible: allowing the possible commissioning of tubes with different characteristics, as well the tests of a version of the ITER upper launcher antenna at full performances. The test facility has been commissioned during the first test phases on the gyrotron which include: high voltage stand-off, coaxial insert alignment and cathode conditioning without depressed collector power supply at a slightly reduced electron beam power of 85kV/78A/2ms. The short pulse (<5ms) operation of the gyrotron has demonstrated stable single mode operation in the designed TE-34,19 mode at RF power levels in excess of 1.4MW, at below nominal electron beam parameters (79kV/75A). Further RF optimization in view of reaching the nominal beam parameters of 90kV/75A is presently underway and the status of the short pulse (< 100ms) experimental results will be reported. ©IEEE.	en
heal.journalName	33rd International Conference on Infrared and Millimeter Waves and the 16th International Conference on Terahertz Electronics, 2008, IRMMW-THz 2008	en
dc.identifier.doi	10.1109/ICIMW.2008.4665577	en