Submitted Proposal Titles for the Alcator C-Mod 2005 Ideas Forum

114 Proposals from 12 Institutions

Note: to accommodate schedule restrictions of some speakers, several talks have been assigned to sessions of an unrelated task force. For example, Snipes’ proposal for Parametric dependence of the 2nd HarmonicAlfven Cascade belongs to the MHD physics group but is presented in the session for Lower Hybrid. The MHD Physics task force still `owns’ this Idea and is responsible for prioritizing it relative to other MHD proposals. In such cases the Task Force ownership is indicated in bold italic font.

Lower Hybrid  (Randy Wilson) 6 Proposals + 5 Orphans from MHD

PPPL	Zweben	Interactions of LH with edge turbulence
MIT PSFC	Marmar	Sawtooth modification/stabilization investigations with lower hybrid current drive near the q=1 surface
MIT PSFC	Bonoli	Sawtooth Behavior Modification via LHCD
PPPL	Bernabei	Commissioning LHCD system at low power
PPPL	Wilson	Commissioning High Power LH operations
PPPL	Bernabei	Measurement of LH current drive and localization
MIT PSFC	Snipes	Parametric Dependence of 2nd Harmonic Alfven Cascades (MHD Physics)
MIT PSFC	Snipes	Parametric Dependence of Alfven Cascade Initial Frequency (MHD Physics)
MIT PSFC	Snipes	Damping Rate of Stable Alfven Cascades with low Shear (MHD Physics)
MIT PSFC	Snipes	Damping Rate of Current Rise TAEs with low Shear (MHD Physics)
MIT PSFC	Snipes	Parametric Dependence of Moderate n Alfven Eigenmode Damping Rates (MHD Physics)

Advanced Tokamak  (Amanda Hubbard) 12 Proposals

PPPL	Mikkelsen	Separating the ITB trigger from the initial transient phase of EDA H-mode plasmas
MIT PSFC	Zhurovich	ITB formation - Ti critical gradient dependence
MIT PSFC	Snipes	Driving Current Rise ITBs using Alfven Cascades
PPPL	Hosea	Early LHCD to allow transport barrier formation
MIT PSFC	Marmar	Investigate the use of off-axis lower hybrid heating to trigger and sustain Internal Transport Barriers
PPPL	Jardin	Formation and sustainment of current-hole and other very low li discharges
PPPL	Hosea	Use of LHCD to form current hole
MIT PSFC	Wukitch	High li discharges with near axis MCCD
MIT PSFC	Wukitch	High bootstrap fraction discharges with off-axis MCCD
PPPL	Kessel	High Bootstrap Fraction Plasmas with ITBs
GA	Politzer	High Bootstrap Fraction Noninductive Operation afternoon
PPPL	Kessel	Collaboration on Modeling of LH Discharges

Burning Plasma  (Steve Wolfe) 9 Proposals + 1 Orphan from MHD

Euratom	Maddison	H-mode pedestal identity experiments between Alcator C-Mod, JET, ASDEX-Upgrade and DIII-D
UKAEA	Hender	Complete identity experiments with JET on error field locked mode thresholds
PPPL	Maingi	C-MOD/NSTX/MAST small ELM regime Comparison
MIT PSFC	Marmar	Performance investigations with high-power auxiliary heating at high plasma current (1.5 to 2.0 MA)
PPPL	Meade + Kessel	Performance (beta_N, H and f_bs) of RS AT plasmas
PPPL	Meade + Gorelenkov	Fast Ion Driven Instabilities in RS AT plasmas
PPPL	Wilson	Use of LHCD to achieve ITER-like AT and Hybrid current profiles
GA	Petty	Dimensionless parameter transport studies afternoon
GA	Politzer	Burn Control Simulation with ICRH afternoon
PPPL	Meade	NTM Stability Modification using LHCD (MHD Physics)

Transport  (Martin Greenwald) 30 Proposals

PPPL	Synakowski	Flow perturbations and impact on ITB formation & sustainment
MIT PSFC	LaBombard	Further Studies of Flows, Topology, and L-H Transition Physics
MIT PSFC PPPL	Rice Synakowski	L-mode Momentum Confinement Time Determined from Fast SSEP Change
MIT PSFC	Greenwald	Reduced L/H threshold with balanced double null topology
PPPL	Zweben	Spatial propagation of L-H transition
NYU	Chang	Test of neoclassical scaling law for density pedestal width in H-mode
MIT PSFC	Ernst	Role of H-Mode transition in ITB formation
PPPL	Redi	Formation of Ohmic H-mode ITB with Improved Diagnostic Set
MIT PSFC	Greenwald	Turbulence spreading and barrier destruction/propagation
MIT PSFC	Basse	Core turbulence in low density ITB plasmas
MIT PSFC	Ernst	Direct evidence of TEM turbulence with PCI in ITBs
MIT PSFC	Ernst	Turbulent momentum pinches in core and edge
GA	Degrassie	Torque-less toroidal rotation in a discharge dimensionlessly similar to DIII-D
PPPL	Kramer	Investigation of core localized Alfven Eigenmode activity between giant sawteeth
MIT PSFC	Ernst	Turbulent particle pinches in steady state LH-heated discharges
MIT PSFC	Ernst	Anomalous poloidal rotation
UTexas	Rowan	Poloidal Rotation in EDA H-Mode Discharges and Comparison with Neoclassical Prediction
MIT PSFC	Fiore	Feasibility of using visible Bremsstrahlung emission at the sawtooth crash to study particle transport in ITBs
MIT PSFC	Greenwald	Looking for electron transport in low density ohmic discharges.
UTexas	Gentle	RF modulation to measure direct coupling to electrons
MIT PSFC	Marmar	Use of modulated lower hybrid electron heating for transient transport studies
MIT PSFC	Hubbard	Explore and document "Type I" ELM regime
MIT PSFC	Terry	Investigation of the spatial structure of Type I ELMs on C-Mod
MIT PSFC	Basse	Controlled confinement transitions with low magnetic shear at the edge
MIT PSFC	Hubbard	Effect of error fields on pedestals and ELMs
MIT PSFC	Hutchinson	Radiation loss profile evolution in ITB discharges
MIT PSFC	Hutchinson	Radiation profiles with different impurity species, effects on confinement
UTexas	Phillips	ECE Mid-Radius fluctuation in 4.5T ITB Discharges
MIT PSFC	Rice	Rotation and H-mode Power Thresholds for LSN, DN and USN at 1.0 and 0.6 MA
UTexas	Bravenec	Nonlinear Benchmarks of GYRO and GS2 in C-Mod plasmas including ITB's
UTexas	Bravenec	QC mode measurements using the new high-resolution BES system afternoon?

ICRF Physics  (Steve Wukitch) 7 Proposals

MIT PSFC	Wukitch	Summary of Old & New ICRF Experiments - 1
MIT PSFC	Wukitch	Summary of Old & New ICRF Experiments - 2
MIT PSFC	Wukitch	Summary of Old & New ICRF Experiments - 3
MIT PSFC	Lin	Comparison of Mo and BN protection tiles on antenna power handling and plasma performance
PPPL + PSFC MIT	Schilling	Performance of Modified Antennas including BN tiles, Mo tiles, and edge neutral pressure
MIT PSFC	Parisot	Vertically shifted plasma targets for MCCD experiments
PPPL	C.K. Phillips	TORIC simulations of energetic particle modes in CMod discharges

Divertor / Edge  (Jim Terry) 17 Proposals

MIT PSFC	LaBombard	Phase Space of the Near SOL
UCSD	Antar	Scaling of far SOL turbulence as a function of the average density, plasma current and Toroidal magnetic field afternoon?
MIT PSFC	Terry	The effect of magnetic configuration on blob dynamics
MIT PSFC	Terry	Main chamber recycling and blobs at low collisionality
IPP	Grulke	Dependence of blobs on Collisionality
PPPL	Zweben	Parallel structure of edge turbulence
PPPL	Zweben	Turbulence imaging with impurity ions
MIT PSFC	Lipschultz	Scaling comparison of time-averaged transport and underlying turbulence
MIT PSFC	Lipschultz	Testing of prototype Tungsten brush tiles
LANL	Furno	Study of heating of Tungsten brushed tiles and comparison with Molybdenum tiles late morning or afternoon?
LANL	Furno	Study of Power deposition on divertor tiles under different conditions of IRCF power tiles late morning or afternoon?
PPPL	Biewer	Comparison of magnetic configuration dependent flows in Alcator and NSTX (must be presented Dec 2)
PPPL	Strachan	Methane screening of the C-MOD SOL in the ELM mitigated phases of the EDA regime
Wisconsin	Whyte	SOL transport & main-wall plasma interactions using an axisymmetric "window-frame"
Wisconsin	Whyte	Improved hydrogen-to-deuterium changeover using radiative terminations and disruptions
MIT PSFC	LaBombard	Upper Divertor Pressures with Simulated Cryopump Baffle
LLNL	Umansky	Fluctuations on the high field side SOL

MHD Physics  (Bob Granetz) 13 Proposals + 2 Orphans from Transport

Wisconsin	Whyte + Granetz	Gas jet diagnosis & disruption mitigation
GA	Lao	Effects of 3D error fields on magnetic surfaces must move to afternoon
MIT PSFC	Wolfe	Locked mode studies at different toroidal phase
MIT PSFC	Wolfe	Locked mode thresholds in H-mode plasmas
MIT PSFC	Granetz	B-field scaling of error threshold at constant Greenwald parameter
MIT PSFC	Wolfe	Feedback control of error fields using the A-coils and DPCS
MIT PSFC	Wolfe	Error field studies with unequal A-coil currents (two supplies)
MIT PSFC	Wolfe	Reverse helicity error field study
MIT PSFC	Sears	Real-time tracking of the Alfven Eigenmode frequency via B and n measurements
MIT PSFC	Sears	Effect of ICRF heated fast particles on Alfven Eigenmode Damping Rates
MIT PSFC	Porkolab	Alfven cascade studies during ramp-up with deep reverse shear assisted by MCCD or LH
MIT PSFC	Edlund	Alfven cascade studies during ramp-up with early ICRF heating and n-number measurements
MIT PSFC	Lin	Localized discrete Alfven eigenmodes in the 2nd ballooning stable regime on the H-mode pedestal
MIT PSFC	Liang Lin	Further Studies of ITG and TEM Modes with the Upgraded PCI Diagnostic in Alcator C-Mod (Transport Task Force)
MIT PSFC	Liang Lin	Search for ETG Modes with the Upgraded PCI Diagnostic in Alcator C-Mod (Transport Task Force)

Basic Science, Diagnostic Development, & DPCS  (Bill Rowan) 13 Proposals Note: Must schedule for Thu-Fri

MIT  PSFC	Bose	Stereoscopic Pellet Imaging
MIT  PSFC	Hutchinson	High and low density comparisons of foil and axuv bolometers
GA	Petty	Current drive profile determination using internal magnetic measurements afternoon
LLNL	Holcomb	RF enhanced glow for MSE beam-into-plasma calibration
UTexas	Rowan	Er measurement and application to analysis of fluctuation data and to our understanding of transport
MIT PSFC	Smick	New Probe Diagnostic for the High-Field Side: The WASP (Wall-Acutated Scanning Probe)
MIT PSFC	LaBombard	Next Generation Scanning Probes in C-Mod
MIT	Marr	Development and Evaluation of Gas Puff CXRS in the Edge and Pedestal Regions
UTexas	Rowan	Impurity distribution in the foot of ITB discharges
UTexas	Bravenec	Comparisons of GYRO computations of turbulence and transport near the plasma edge with BES measurements and TRANSP analysis
MIT PSFC	Ferrera	First operation of C-Mod using the Digital Plasma Control
MIT PSFC	Stillerman	New PCS User Interface and Data Structures
MIT PSFC	Wolfe	Non-linear and adaptive control schemes using DPCS