1 Roger Raman for the NSTX Research Team University of Washington, Seattle Update on the NSTX Run Plan PPPL, Princeton, NJ, 15 May, 2006 Supported by Office of Science College W&M Colorado Sch Mines Columbia U Comp-X General Atomics INEL Johns Hopkins U LANL LLNL Lodestar MIT Nova Photonics New York U Old Dominion U ORNL PPPL PSI Princeton U SNL Think Tank, Inc. UC Davis UC Irvine UCLA UCSD U Colorado U Maryland U Rochester U Washington U Wisconsin Culham Sci Ctr U St. Andrews York U Chubu U Fukui U Hiroshima U Hyogo U Kyoto U Kyushu U Kyushu Tokai U NIFS Niigata U U Tokyo JAERI Hebrew U Ioffe Inst RRC Kurchatov Inst TRINITI KBSI KAIST ENEA, Frascati CEA, Cadarache IPP, Jülich IPP, Garching ASCR, Czech Rep

2 NSTX has completed 40 days involving machine operations 22 Experimental Proposals and 3 machine proposals run –31 days of effective run usage Shots with no coil currents filtered out –4 days for enabling activities Good progress in all ET areas –ET Leaders to provide input on: Tasks accomplished with respect to milestone and ITPA Work remaining from on-going experiments New experiments for consideration

3 Progress with Experiments in Base Run Plan

4 Run Plan breakdown by Experimental Task Groups (based on 41 scheduled days) Boundary Physics8 days Transport and Turbulence6.5 days MHD Physics8 days Wave Particle Physics4.5 days Integrated Scenario Development5 days Solenoid-free plasma startup4 days Enabling activities5 days Contingency14 days: To be determined at mid-run assessment

5 MHD and Boundary group run usage MHD [Total 64 hours in base plan]: hours used XPAuthorHours usedBase plan (Hr) 615Sabbagh Menard Strait5.554 XMP45Sontag Sontag08 623Gates08 Boundary [Total 64 hours]: hours used (6-days for non-Li) 601Kugel Kugel Soukhanovskii Boedo Soukhanovskii Hubbard Maingi Bush04

6 Transport & Turbulence and Wave Particles group run usage Transport and Turbulence [Total 52 hours]: hours used 612Stutman Levinton Tamura Smith Delgado08 532Kaye08 Wave Particles [Total 36 hours]: hours used XMP 26Hosea Hosea Diem Heidbrink Fredrickson08

7 ISD and Solenoid-free plasma startup group run usage ISD [Total 40 hours]: hours used 603 Gates Menard Kessel Kaye Soukhanovskii04 628Leuer04 Sol-Free Plasma Startup [32 hours]: hours used 533Mueller Raman

8 Unallocated time for base plan experiments (7-3/4 days) MHD3 days Wave Particles1-1/4 days Transport & Turbulence2-1/2 days Boundary0 days ISD0 days Solenoid Free Plasma Startup1 day

9 Two weeks run time available for balance of FY06 Focus on completing important missing results from present experiments related to Milestones –Try to do as good a job we can with the Milestones –Finish on-going ITPA related experiments New experiments that would be particularly timely for execution during FY06

10 Priorities for XPs for the remainder of the NSTX Run MHD: 615 Sabbagh1RWM 614 Menard1/2EFC 619 Sontag1 RWM stabilization models 623 Gates1High-beta [end of run] Menard0Low density locked mode (defer to 07) 526 Kaye0.5ELM and Confinement scaling with elongation 602 Menard0.5Long pulse SN 603 Gates[0.5/1]Long pulse DN [After Li tests] 627 KesselHHFW current drive 628 LeuerNSTX/DIII-D control system collaboration ISD:

11 Priorities for XPs for the remainder of the NSTX Run Transport and Turbulence 613 Delgado (Thesis)1Z-scaling of imp. transport 532 Kaye1/2B T and Beta scaling of confinement Smith (Thesis)1Dedicated High-k XP (to be written) 612 Levinton Stutman0.5 Wave Particles: 608 Fredrickson1TAE/EPM impact of fast ions 607 Heidbrink2 hoursFishbone impact on fast ions 625 Diem (Thesis)0.5/1EBW emission and coupling 617 Hosea0.5HHFW power balance BernabeiMissing RF power

12 Priorities for XPs for the remainder of the NSTX Run Boundary: 601 Kugel1.5/2.5Li Evaporator 621 Hubbard6 hoursCMOD/MAST/NSTX collaboration on ELMs 529 Maingi2 hoursPedestal dependence on Aspect Ratio XMP46 Bush2 hoursDivertor Langmuir probe commissioning Maqueda/BoedoEdge Turbulence and Transport TritzType 1 ELM heat pulse propagation EvansELM suppression with resonant magnetic pert 609 MaingiELM type on magnetic balance WilliamsRole of turbulence in density limits (0.5 days) 605 SoukhanovskiiDetachment in high triangularity (piggy back?) Sol-free plasma startup : 606 Raman1/2Transient CHI 533 MuellerNeed to do PCS development

13 About 23 days remain in FY06 NSTX Run days required to complete priority 1 XPs - Milestone related - ITPA related New XPs from list being considered - Those that are particularly important for FY06