Experimental tasks

• Spectra

Extend to small scale; wavenumber dependence (Taylor hyp.); density, flow

• Verify existence of inertial range

• Determine if decorrelation rate has dependence on B0

Bispectrum in small scales, response to perturbation

• Measure anisotropy in small scales or B2(k, k| |, )

• Physics of two high frequency subranges

Dissipation? two-fluid effects? kinetic Alfvén wave?

• Driving sources besides tearing

High k in PPCD, electrostatic, edge localized

• MRX: b/B ~ 1 region - effect of guide field on Alfvén waves, anisotropy, etc.

• MRX, SSPX, SSX: decaying turbulence - validity of Kulsrud magnetogenesis

• Transport: /| |?. is there any resonant particle transport?

Theory

• Properties of turbulence under variation of mean field strength in spectra that peak at low k, and high k

• Measurement of spectral energy transferCorrelation to wave physics

• Effect of collisionless damping on spectrum; effect of anisotropy on dissipation• Analytic theory for anisotropic spectrum in RMHD (a la quasi geo turb)• Inverse cascade analysis closure theory - do Alfvénic interactions induce inverse

energy cascade?• Compressible turbulence - issues?

Magnetic fluctuations, density distribution• Thermal conductivity

Braginskii, stochastic field• Two fluid (Hall effects)

• Explanation of large for cosmic rays• Thermal conductivity vs. electron diffusivity in chaotic field?

Theory continued

• Mirror spectrum

• Diffusion in multi-scale tangled field - firmer footing?

• Use of MHD turbulence measurements in transport theories?

• Checking of diffusion and heat conduction theories with experiments?

MST, MRX

• Full 3D simulations of heat transport (collisions, e-e energy exchange, etc.)