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10Th International Conference and School on Plasma Physics and Controlled Fusion UA0500657 10th International Conference and School on Plasma Physics and Controlled Fusion Alushta (Crimea), Ukraine, September 13-18, 2004 i Alushta Ukraine Organized by National Science Center 'Kharkov Institute of Physics and Technology 10th International Conference and School on Plasma Physics and Controlled Fusion Alushta (Crimea), Ukraine, September 13-18, 2004 BOOK OF ABSTRACTS Alushta Ukraine Organized by National Science Center 'Kharkov Institute of Physics and Technology' International Advisory Committee: C.Alejaldre - CIEMAT, Spain M.I.Pergament-TRINITI, Russia V.Astashynski - 1MAF of Belarus MJ.Sadowski - SINS, Poland Acad. of Sci. V.P.Smirnov - RRC "Kurchatov I.G.Brown - LBNL, USA Inst.", Russia T.Dolan - INEEL, USA P.E.Stott - CEA, Cadarache, France Ya.B.Fainberg-NSC KIPT, Ukraine F.Wagner - IPP, Germany A.Hassanein - ANL, USA K. Yamazaki - NIFS, Japan L.M.Kovrizhnykh -GPI of RAS, Russia K.A.Yushchenko - Paton Inst. of E.P.Kruglyakov - INF, Russia Welding, NAS of Ukraine V.I.Lapshin - NSC KIPT, Ukraine A.G.Zagorodny - Bogolyubov Inst. J.Lyon - ORNL, USA for Theoretic Phys., NAS of Ukraine Program Committee: V.I.Lapshin (IPP NSC KIPT) - Chairman K.N.Stepanov (IPP NSC KIPT) - Vice Chairman I.E.Garkusha (IPP NSC KIPT) - Scientific Secretary N.A.Azarenkov (Karazin National Univ., Kharkov) Yu.I.Chutov (T.Shevchenko National Univ., Kiev) T.A.Davydova (INR of NAS of Ukraine, Kiev) G.S.Kirichenko (INR of NAS of Ukraine, Kiev) I.N.Qnishchenko (IPENMA NSC KIPT) O.S.Pavlichenko (IPP NSC KIPT) O.B.Shpenyk (IEP of NAS of Ukraine, Uzhgorod) I.A.SoIoshenko (IP of NAS of Ukraine, Kiev) V.S.Taran (IPP NSC KIPT) V.I.Tereshin (IPP NSC KIPT) V.T.Tolok (Karazin National Univ., Kharkov) V.S.Voitsenya (IPP NSC KIPT) E.D.Volkov (IPP NSC KIPT) A.M.Yegorov (IPENMA NSC KIPT) I.I.Zalyubovski (Karazin National Univ., Kharkov) K.A.Yushchenko (Paton Inst. for Welding of NAS of Ukraine, Kiev) A.G.Zagorodny (ITP of NAS of Ukraine, Kiev) Local Organizing Committee: V.I.Lapshin (IPP NSC KIPT) - Chairman V.I.Tereshin (IPP NSC KIPT) - Vice Chairman A.M.Yegorov (IPENMA NSC KIPT) - Vice Chairman I.E.Garkusha (IPP NSC KIPT) - Scientific Secretary M.E.Maznichenko (IPP NSC KIPT) L.K.Tkachenko (IPP NSC KIPT) CONTENTS Preface Invited Lectures 3 Contributed Papers 28 Topics: 1. Magnetic confinement systems: Stellarators, Tokamaks, Alternative conceptions 28 2. ITERand Fusion Reactor Aspects 68 3. Basic Plasma Physics 81 4. Space Plasma 102 5. Plasma Dynamics and Plasma-Wall Interaction 107 6. Plasma Electronics 138 7. Low Temperature Plasma and Plasma Technologies 169 8. Plasma Diagnostics 214 Index of authors 228 10th International Conference and School on Plasma Physics and Controlled Fusion is sponsored by Ministry of Education and Science of Ukraine, National Academy of Sciences of Ukraine, Science and Technology Center in Ukraine (STCU), Bogolyubov Institute for Theoretical Physics and National Science Center "Kharkov Institute of Physics and Technology". This Conference-School succeeds the International and Ukrainian National Conferences and Schools on Plasma Physics, which were organized by National Science Center "Kharkov Institute of Physics and Technology". The previous conferences and schools were held in Alushta in 1998, 2000, 2002. About 240 abstracts by Ukrainian and foreign authors submitted to 10th International Conference on Plasma Physics and Controlled Fusion have been considered by Conference Program Committee members. All the abstracts have been divided into 8 groups according to the topics of Conference Program. Since the abstracts presented in this volume were prepared in camera-isady form, and the time for the technical editing was very limited, the Editors and the Publishing Office do not take responsibility for the content and style of contributions. Hence, all the questions referring to the context or numerical data should be addressed to the authors directly. We hope that the contributed papers and invited talks, to be given at the Conference, will supply new valuable information about the present status of plasma physics and controlled fusion research. We also hope' that the Conference will promote a further development of plasma physics and fusion as well as the scientific collaboration among different plasma research groups in Ukraine and abroad. The texts of invited lectures and contributed papers will be published after the Conference in journal "Problems of Atomic Science and Technology" Series: Plasma Physics. The papers for publication will be selected on the base of reviewing. Program and Local Organizing Committees INVITED LECTURES I t.01 UA0500658 DIVERTOR FLOW AND FAST PARTICLE BEHAVIORS IN SPONTANEOUS CHANGE OF PLASMA CONFINEMENT STATE IN THE URAGAN-3M TORSATRON V.V. Chechkin, L.I. Grigor'eva, EL. Sorokovoy, A.S. Slavnyj, Ye.D. Volkov, Ye L. Sorokovoy, N.I. Nazarov, P.Ya. Burchenko, S.A. Tsybenko, A.V. Lozin, A.Ye. Kulaga, A.P. Litvinov, Yu.K. Mironov, V.S. Romanov, S. Masuzaki", K. Yamazaki* Institute of Plasma Physics, National Science Center 'Kharkov Institute of Physics and Technology", Kharkov, Ukraine 'National Institute for Fusion Science, Toki, Japan In the Uragan-3M torsatron with a natural helical divertor (U-3M; / = 3, m = 9, R<, = 1 m, a =» 0.1 m, i( a )/2it « 0.3, Bt = 0.7 T), the plasma is produced and heated by RF fields in the co aoc, frequency range. An essential feature of the diverted plasma flow is a strong up-down asymmetry of its distribution, where the predominant traction of the flow always outflows on the ion toroidal drift side [1], This effect was related to the asymmetry of angular distribution of direct (non-diffusive) fast ion loss. In particular, such an explanation agrees with the ion energy spectrum in the plasma, where in typical conditions, with the temperature of the major ion group of T,i < 100 eV, two minor groups of high energy ions, TQ ~ 300 eV and To ~ 1000 eV, are observed [2]. With a sufficiently high RF power injected into the plasma, a spontaneous increase of electron density and temperature, stored energy and some other changes in confined plasma parameters occur, these being treated as a transition to the improved confinement mode [3]. It is shown in the paper presented that this transition is also accompanied by appreciable changes in the value and the degree of vertical asymmetry of plasma divertor flow components outflowing into the spacings between the helical coils. In general, these changes pass over two time phases, "fast" and "slow" ones. At the fast phase, which lasts for several ms, a decrease of the divertor flow is always observed, thus confirming an improvement of plasma confinement at this phase. The fast phase is interrupted by a sharp rise of the divertor flow and by a rise of its up-down asymmetry. At the same time, a decrease of high energy ion content in the confinement volume and an increase of fast ion flux in the divertor flow on the ion toroidal drift side occur. The data having been obtained confirm the existence of improved confinement mode in the U-3M torsatron and allow one to estimate the quality of suprathermal ion confinement and the contribution of these ions to the formation of divertor flow vertical asymmetry. [ 1 ] Chechkin V.V., Grigor'eva L.I., Sorokovoy E.L. et al 2002 Nucl. Fusion 42 192 [2] Chechkin V.V., Grigor'eva L.I., Sorokovoy E.L. et al 2003 Nucl. Fusion 43 1175 [3] Volkov ED., Berezhnyj V.L., Bondarenko V.V. et al 2003 Problems of Atomic Science and Technology, Series "Plasma Physics " No. 1 p 3 UA0500659 1-02 RECENT PROGRESS ON PARTICLE CONFINEMENT STUDY AND ION HEATING EXPERIMENTS IN LHD S.Morita, M.Goto, T.Morisaki, Y.Takeiri, K.Tanaka, S.Masuzaki, J.Miyazawa, S.Murakami1, S.Muto, T.Mutoh, K.Narihara, H.Nozato2, M.Osakabe, S.Sakakibara, R.Sakamoto, K.Yamazaki, M Yokoyama, N.Ashikawa, H.Funaba, K.Ida, KJkeda, S.Inagaki, O.Kaneko, K.Kawahata, S.Kubo, R.Kumazawa, K.Nagaoka, Y.Nagayama, Y.Nakamura, Y.Narushima, K.Nishimura, S.Ohda'chi, ICOhkubo, N.Ohyabu, Y.Oka, T.Ozaki, B.J.Peterson, K.Saito, K Sato, T.Seki, T.Shomizuma, M.Shoji, N.Tamura, K.Toi, T Tokuzawa, K..Tsumori, K.Y.Watanabe, T.Watari, H.Yamada, I.Yamada, Y.Yoshimura, M.Yoshinuma, A.K.omori, O.Motojima and LHD experimental group National Institute for Fusion Science, Toki 509-5292, Gifu, Japan 'Department of Nuclear Engineering, Kyoto University, Kyoto 606-8501, Japan Science and Technology Center for Atoms, Molecules and Ions Control, Osaka University, Osaka 565-0871, Japan Experimental efforts have been extensively done in Large Helical Device (LHD) to find the key for confinement improvement like H-mode and ITB seen in tokamaks. In the H-mode- rype transition the ergodic layer surrounding the core plasma and the edge rotational transform become important in LHD. In outwardly shifted configuration (RaX=4.00m) having an m/n=l/l rational surface at the ergodic layer an H-mode-like transition was obtained with rapid density rise and appearance of ELM-like H-alpha bursts, when the neutral beam input power was decreased from 8 to 5MW. A density window of 4-8xl0l3cm 3 existed for the H- mode-like transition. The ELM-like H-alpha bursts can be drived by a pressure gradient at the 1/1 position. In the ITB-type discharge, on the other hand, a peaking of densities and toroidal rotation play an important role in addition to a necessary ion heating power. For the purpose Ne and Ar discharges were adopted to increase the ion heating power per ion and to perform the density peaking after Ne and Ar glow discharge cleanings. High ion temperatures up to lOkeV were obtained from ArXVII Doppler broadening measurement with a large enhancement of toroidal rotation (~40km/s).
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