Major NSTX Program Topics of Interest, Feb 2004

1
Major NSTX Program Topics of Interest, Feb 2004

• NSTX PAC-15th Meeting, Jan 12 14, 2004
• FY04-06 Research Milestones
• FY04 Research Coordination Among DIII-D, C-Mod,
  and NSTX (on-going discussion)

2
NSTX PAC-15th Meeting

• Three charges
• Due to funding reality, effectiveness of
• Updated plan for 04-08
• 04 run plan
• 05-06 research facility plan (for FWP)
• in addressing the goals of the 5-Year Plan

3
NSTX PAC-15th Meeting Results

• PAC was impressed gave many positive comments
• Congratulations on TF repair
• More better analysis, integration scenario
  development
• Aggressive RWM upgrade and research plans
• Progress toward ?i resolution
• FY04 run planning, and run-week contingency
• Tests of high k, multiple approaches for startup
• Partition into startup (100-150kA), rampup (to
  500kA), sustainment (to 1MA)
• Exemplary effort in international collaboration
• General approval of facility plan

4
NSTX PAC-15th Meeting Results

• Several areas require attention
• Timely availability of MSE CIF data (? begin
  quarterly review and update)
• Global confinement study, for projection to
  future devices
• Systematic linear and nonlinear m-turbulence
  calculations as part of research, for ion and
  electron diffusivities
• HHFW modeling benchmarking with experimental
  measurements
• Schedule for lithium vs. cryo decisions, critical
  for future scenarios
• Schedule and criteria for EBW frequency MAST
  collaboration, 06 decision
• Investigation of CTF scenarios
• Coordination of US ST programs
• MW EBW source development schedule and funding
• ? Work on these as part of preparation of FWP

5
FY05-06 Research Milestones, Arrived at on Feb
10, 2004, to Address Overarching Fusion
Scientific Issues
FY04
FY06
FY05
Exp. Run-Weeks
18
12
14
1) Transport Turbulence What causes electron
ion transport? (04-2) Measure (05-1) Measure
hi-k low-k turbulence turbulence
2) MHD How are plasma pressure bootstrap
current limited? (05-2) Study plasmas
near with-wall limit
3) Wave-Plasma How do energetic particles RF
power sustain plasmas? (04-3) Measure ?J
(05-3) Demonstrate (06-1) Assess EBW from RF,
NBI ?p JNI 100 for tskin HCD
requirements (04-4) Characterize EBW
emission, est. HCD
4) Start-up How to convert externally directed
energies to plasma magnetic flux? (04-5) Test
current (06-2) Solenoid-free initiation ramp-u
p to high bp
5) Boundary How do plasmas interact with
materials? (06-3) Characterize edge of
H-mode plasmas
6) Integration of ST plasma science into
attractive regimes (04-1) Assess hi tE
(05-4) Assess combined (06-4) Demonstrate hi
bT H-mode for gtgt tE RF NBI effectiveness JNI
100 for gtgt tskin