Plans for 2015 Clause Samples
Plans for 2015.
1) The Heliotron group will participate in next international stellarator/heliotron workshop which is planned to be held at Greifswald, Germany in 2015.
2) Gavin Weir (Univ. Wisconsin) will join the Heliotron J group from January, 2015 for one year as a post-doctoral fellow, supported by JSPS. He will be engaged in experimental study on anomalous electron heat transport using an ECE radiometer.
3) Francesco Volpe and his PhD student plan to visit Kyoto University for collaboration research on the EBE diagnostic. He will develop a polarizer to measure the polarization of O-mode emitted from a Heliotron J plasma.
4) Manuel Garcia-Munõz (University of Sevilla, Spain) plan to visit at Kyoto University for research collaboration on the energetic ion driven MHD instabilities and their effect on energetic ion confinement in both tokamaks and stellarator/heliotron plasmas.
5) Plasma fluctuations and structural formation at core and edge regions will be continued to be measured with using diagnostics including a beam emission spectrometer, a reflectometer, SX array, Langmuir probes and fast CCD cameras under collaboration with CIEMAT, IPP and Stuttgart University and domestic universities.
6) Confinement improvement of particle, momentum and energy, especially the role of toroidal and poloidal rotation, will be investigated by controlling particle fuelling method and magnetic field configuration under collaboration with Kharkov Institute and CIEMAT.
7) Confinement control of high-energy particles by using the optimized field configuration based on the quasi-isodynamic concept will be examined through Heliotron J NBI/ICRF experiments.
8) Internal transport barrier will be experimentally investigated in Heliotron J, which is observed in low-density ECH plasmas. The necessary conditions for forming the internal transport barrier will be clarified, and will be compared with
9) MHD instabilities such as interchange instabilities and Alfven Eigenmode instabilities in low-magnetic shear configurations will be studied from the viewpoint of magnetic island control and suppression of energetic-ion loss under collaboration with CIEMAT and IPP.
10) Research on NBI start-up using 2.45GHz microwaves will be continued for high-beta experiments and physics study of plasma production under collaboration with IPP.
11) ECCD experiments using 2nd harmonic 70GHz X-mode will be performed for control of MHD instabilities through rotational transform modification under collaboration wit...
Plans for 2015. The 20th International Stellarator–Heliotron Workshop will take place in Greifswald 05.10. – 09.10.2015 with an expected 150 participants from across the world. Planning stellarator/heliotron theory
1) ▇. ▇▇▇▇▇▇ plans to go to NIFS to work on 3D MHD equilibrium problems 2) ▇. ▇▇▇▇▇ plans visit PPPL to collaborate on gyrokinetic theory for stellarators
Plans for 2015.
1) Stellarator physics: confinement data-base, neoclassical transport, magnetic topology, stellarator optimization and magnetic configuration effects on confinement. These activities are carried out within the framework of the Implementing Agreement for Co-operation in Development of the Stellarator-Heliotron Concept.
2) Plasma diagnostic development and engineering: Diagnostic developments for TJ-II will continue and in a wider context for ITER (with emphasis on reflectometry, VIS-IR spectroscopy) and W7-X (reflectometry, impurity transport physics, fuelling and interplay between large and short scale radial electric fields) as well a supersonic He beam for Ti edge profile measurements in LHD.
3) Plasma heating (NBI, ECRH) and their role on fast particles driven modes.
4) Physics of advanced confinement scenarios: transport barrier physics, isotope effect, impurity transport and stability (including the role of magnetic well and density limit).
5) Theory and modelling of plasma transport, stability and equilibrium with emphasis on island dynamics and breaking of nested surface topology (3-D effects) and Gyrokinetic theory.
6) Validation activities of stellarator-specific transport models will continue at TJ-II in collaboration with NIFS and IPP Greifswald.