Observation of Non-Circular Cross-Section for q=1 Magnetic Surface in Very Low-q Discharge (q a \lesssim2) of DIVA Tokamak

Non-circular cross-section for q =1 magnetic surfaces were experimentally shown in stable very low- q discharge ( q a \lesssim2; q a is the safety factor at the plasma surface) of DIVA tokamak with and without a divertor. Heat flux to the first wall due to the sawtooth disruption in low- q discharge...

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Published in:Japanese Journal of Applied Physics 1980-01, Vol.19 (7), p.L413
Main Authors: Yamamoto, Shin, Sengoku, Seio, Matsuda, Tosiaki, Matsumoto, Hiroshi, Ohasa, Kazumi, Odajima, Kazuo, Kimura, Haruyuki, Yamauchi, Toshihiko, Kumagai, Katsuaki, Sugie, Tatsuo, Kasai, Satoshi, Maeda, Hikosuke, Shimomura, Yasuo
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cited_by cdi_FETCH-LOGICAL-c431t-8ea463767b8ac52fcd78bc444130bbc0b848546c3e120109eddba6d8ef074f053
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container_issue 7
container_start_page L413
container_title Japanese Journal of Applied Physics
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creator Yamamoto, Shin
Sengoku, Seio
Matsuda, Tosiaki
Matsumoto, Hiroshi
Ohasa, Kazumi
Odajima, Kazuo
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Kumagai, Katsuaki
Sugie, Tatsuo
Kasai, Satoshi
Maeda, Hikosuke
Shimomura, Yasuo
description Non-circular cross-section for q =1 magnetic surfaces were experimentally shown in stable very low- q discharge ( q a \lesssim2; q a is the safety factor at the plasma surface) of DIVA tokamak with and without a divertor. Heat flux to the first wall due to the sawtooth disruption in low- q discharge will become a serious problem in future large tokamak if sawtooth disruption cannot be suppressed.
doi_str_mv 10.1143/JJAP.19.L413
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title Observation of Non-Circular Cross-Section for q=1 Magnetic Surface in Very Low-q Discharge (q a \lesssim2) of DIVA Tokamak
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