European 1 MW, 170 GHz CW Gyrotron Prototype for ITER - long-pulse operation at KIT -

Rzesnicki, T.; Albajar, F.; Avramidis, K. A.; Chelis, I; Gantenbein, G.; Hogge, J-P; Illy, S.; Ioannidis, Z. C.; Jelonnek, J.; Jin, J.; Leggieri, A.; Legrand, F.; Pagonakis, I. Gr; Sanchez, F.; Thumm, M.

doi:10.1109/IRMMW-THz50927.2022.9896073

Rzesnicki, T.; Albajar, F.; Avramidis, K. A.; Chelis, I; Gantenbein, G.; Hogge, J-P; Illy, S.; Ioannidis, Z. C.; Jelonnek, J.; Jin, J.; Leggieri, A.; Legrand, F.; Pagonakis, I. Gr; Sanchez, F.; Thumm, M.

2022

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Résumé

The upgraded EU 1 MW, 170 GHz continuous wave (CW) industrial prototype gyrotron (TH1509U) for Electron Cyclotron Resonance Heating and Current Drive (ECRH&CD) in ITER was tested at the Karlsruhe Institute of Technology (KIT). The gyrotron surpassed the performance of the previous TH1509 tube. In particular, TH1509U delivered (i) 0.9 MW in 180 s pulses (max. pulse length of the KIT test stand) and (ii) more than 1 MW at a pulse length limited to 40 s, due to a problem with the test stand cooling circuit at that time. In addition, it was possible to demonstrate gyrotron operation at (iii) 0.5 MW in 1600 s pulses.