caa a22 4500 445305584 CHVBK 20180317142612.0 cr unu---uuuuu 170323e20110301xx s 000 0 eng 10.1007/s10762-010-9706-0 doi (NATIONALLICENCE)springer-10.1007/s10762-010-9706-0 The Multiple Gyrotron System on the DIII-D Tokamak [Elektronische Daten] [John Lohr, Mirela Cengher, John Doane, Yuri Gorelov, Charles Moeller, Dan Ponce, Ron Prater] The electron cyclotron heating and current drive complex on the DIII-D tokamak presently comprises six gyrotrons injecting rf power from the low field side at 110GHz, the 2f ce resonance at the center of the vacuum chamber. Typical injected rf power is 600-650kW per gyrotron. The launched rf can be directed over ±20° toroidally to create both co- and counter-current drive and scanned over 40° poloidally to permit the injected rf beams to intersect, and be absorbed at, the second harmonic resonance anywhere in the tokamak upper half plane. The elliptical polarization is controlled so that the desired extraordinary or ordinary modes are excited for any injection geometry. The maximum injected energy on a single plasma shot has been 16.6MJ for six gyrotrons injecting a total of 3.4MW for 5 seconds. Springer Science+Business Media, LLC, 2010 Multiple gyrotron nationallicence rf sources nationallicence Electron cyclotron heating nationallicence DIII-D tokamak nationallicence Lohr John General Atomics, PO Box85608, 92186-5608, San Diego, CA, USA aut Cengher Mirela General Atomics, PO Box85608, 92186-5608, San Diego, CA, USA aut Doane John General Atomics, PO Box85608, 92186-5608, San Diego, CA, USA aut Gorelov Yuri General Atomics, PO Box85608, 92186-5608, San Diego, CA, USA aut Moeller Charles General Atomics, PO Box85608, 92186-5608, San Diego, CA, USA aut Ponce Dan General Atomics, PO Box85608, 92186-5608, San Diego, CA, USA aut Prater Ron General Atomics, PO Box85608, 92186-5608, San Diego, CA, USA aut Journal of Infrared, Millimeter, and Terahertz Waves Springer US; http://www.springer-ny.com 32/3(2011-03-01), 253-273 1866-6892 32:3<253 2011 32 10762 https://doi.org/10.1007/s10762-010-9706-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10762-010-9706-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lohr John General Atomics, PO Box85608, 92186-5608, San Diego, CA, USA aut NATIONALLICENCE 700 1- Cengher Mirela General Atomics, PO Box85608, 92186-5608, San Diego, CA, USA aut NATIONALLICENCE 700 1- Doane John General Atomics, PO Box85608, 92186-5608, San Diego, CA, USA aut NATIONALLICENCE 700 1- Gorelov Yuri General Atomics, PO Box85608, 92186-5608, San Diego, CA, USA aut NATIONALLICENCE 700 1- Moeller Charles General Atomics, PO Box85608, 92186-5608, San Diego, CA, USA aut NATIONALLICENCE 700 1- Ponce Dan General Atomics, PO Box85608, 92186-5608, San Diego, CA, USA aut NATIONALLICENCE 700 1- Prater Ron General Atomics, PO Box85608, 92186-5608, San Diego, CA, USA aut NATIONALLICENCE 773 0- Journal of Infrared, Millimeter, and Terahertz Waves Springer US; http://www.springer-ny.com 32/3(2011-03-01), 253-273 1866-6892 32:3<253 2011 32 10762 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer