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Study of Electric Field and Turbulence using Heavy Ion Beam Probe (HIBP)

Study of Electric Field and Turbulence using Heavy Ion Beam Probe (HIBP). Proposal of International Cooperation for Transport Study. Shoichi Okamura, Akihide Fujisawa National Institute for Fusion Science. Joint stuty is planned based on the

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Study of Electric Field and Turbulence using Heavy Ion Beam Probe (HIBP)

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  1. Study of Electric Field and Turbulence using Heavy Ion Beam Probe (HIBP) Proposal of International Cooperation for Transport Study Shoichi Okamura, Akihide Fujisawa National Institute for Fusion Science Joint stuty is planned based on the 'Agreement on Scientific Exchange and Cooperation between NIFS and PPPL' Available Components (Hardwares) Three complete sets of HIBP systems High energy beam sources (1 x 500 keV, 2 x 200 keV) Three sets of energy analyzer system (beam detectors) 32 computer-controlled high voltage power supplies (for steering and guiding beams)

  2. Physics Objectives Electric Field Physics Study • Roles of electric field for improved confinement • Dynamics of electric field in the formation of transport barriers • Mechanism of electric field formation in the intermediate configuration between axisymmetric and non-axisymmetric ones Turbulence Transport Study • Turbulence induced particle flux measurements • Turbulence suppression with the foramtion of transport barriers • Zonal flow structure in the quasi-axisymmetric configuration • Effect of helical ripples on zonal flow

  3. FY- 06 FY- 07 FY- 08 FY- 09 FY- 10 FY- 11 FY- 12 FY- 13  Fabrication Project   4     3   1 2 Phase 1 & 2 Equipment  1st Plasma Phase 2 Equipment Full field, more diags. Full PFCs & divertor Time Schedule Discussion starts System Installation Operation Starts First Data Advanced Study on Transport

  4. Necessary Works (Tasks) to start the Cooperation Organize research teams (both Japanese side and U.S. side) Beam trajectory calculation. Determine basic primary and secondary beam orbits. Allocate HIBP ports (for primary beam and secondary beam) Design attachements for installation of HIBP system Various administrative negotiation for making relatively long stay of Japanese team in PPPL possible

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