Alcator C-Mod Ideas Forum

December 12-13, 2001

Agenda

Wednesday, December 12 Session #1: Advanced Tokamak, Internal Transport Barriers

Session #2: Divertor Shaping and Pressures, Edge Turbulence, Edge Fueling, Edge Flows, Impurities

Session #3: DNB Transport Expts, Perturbations Expts, and New Transport Diagnostics

Session #4: H-Mode Pedestal and ELMs

Thursday, December 13 Session #5: Burning Plasma Support Expts; and RF

Session #6: MHD Issues

Session #7: Advanced Tokamak Issues (Long Pulses, Density Control, and j(r) measurement); and Transport Expts.

Session #8: Summaries and Overviews of Task-force areas


To download a .pdf version of a desired presentation, please duble-click on the link of the # associated with the  presentation. If you use the link to the presentation itself you may not get a .pdf file.
 

12/12/01   9:15-10:30 Advanced Tokamak, Internal Transport Barriers    
  Welcome      
         
Session 1   Session Chair: Steve Wolfe    
Presenter First Author Topic  # (pdf file) Time
Rice, J. Rice, J. High(er) Performance ITB Plasmas 001 9:30
Porkolab, M.  Porkolab, M.  ITB Formation with Two-Frequency ICRF in Optimized Shear Plasmas with Current Ramp 002 9:37
Rice, J. Rice, J. ITB Behavior during Ip Ramping 003 9:44
Greenwald, M. Greenwald, M. Marginal Stability and Critical Gradients in Off-axis ICRF Heated ITB Plasmas 004 9:51
Rice, J. Rice, J. ITB Threshold/Trigger Studies 005 9:58
Kramer, G.T.* Kramer, G.T. (PPPL) Density Turbulence at the C-Mod Internal Transport Barrier 006 10:05
Rice, J. Rice, J. ITB Foot Location Movement via IP Scan 007 10:12
Wukitch, S. Wukitch, S. Heat Pulse Propagation Studies in ITB Discharges 008 10:19
Fiore, C. Fiore, C. Injection of RF into Ohmic H-Mode ITB-s at 4.8-5 T 009 10:26
Lee, W.D. Lee, W.D. Toroidal Field Scans with High Power ICRF 010 10:33
         
 10:40   Coffee Break (10 Minutes)   10:40
         
12/12/01   10:50 -12:07 Divertor Shaping and Pressures, Edge Turbulence, Edge Fueling, Edge Flows, Impurities    
Session 2   Session Chair: M. Greenwald    
Presenter First Author Topic # Time
Pitcher, C.S. Pitcher, C.S. The Effect of the Inner Divertor Modification on Discharges 011 10:50
Zweben, S. Zweben, S. (PPPL) Systematic Comparison of Experiment vs. Theory of Edge Turbulence in Alcator C-Mod 012 10:57
Terry, J. Terry, J. Two-Color Imaging of Gas-puffs for SOL Turbulence Studies 013 11:04
Terry, J. Terry, J. Views of the Inner SOL for Inner/Outer SOL Turbulence Comparison 014 11:11
Boswell, C. Boswell, C. Inner Wall Fueling Efficiency 015 11:18
Lipschultz, B. Lipschultz, B. Why is There Screening of Impurities from the Inner Wall? 016 11:25
Pitcher, C.S. Pitcher, C.S. Large Scale Poloidal Flows in the Boundary 017 11:32
Terry, J. Griem, H. (UMd) Univ. of Maryland Measurements of Flow Velocities in the Divertor  018 11:39
LaBombard, B. Lisgo, S. (U. Tor) Simple-As-Possible Diverted Plasma Experiments 019 11:46
LaBombard, B. LaBombard, B. Instrumented Divertor Leakage Experiments 020 11:53
Lipschultz, B. Lipschultz, B. Towards Understanding the Effects of Boronization 021 12:00
         
  12:07 - 13:30   Lunch (not provided)     12:07
         
12/12/01  13:30 -15:30 DNB Transport Expts, Perturbations Expts, and New Transport Diagnostics    
Session 3  Session Chair: R. Granetz    
Presenter First Author Topic  # Time
Bravenec, R. Rowan, W. (FRC-UTx) DNB Assisted Impurity Transport in C-Mod 023 13:30
Yuh, H. Yuh, H. Measuring the Core and Edge Magnetic Shear with MSE 024 13:37
Sampsell, M.* Sampsell, M. (FRC-UTx) BES Measurements of the Quasi-Coherent Mode 025 13:44
Sampsell, M.* Sampsell, M. (FRC-UTx) Attenuation and Excitation of the DNB from Source to Separatrix 026 13:51
Lynn, A.* Lynn, A. (FRC-UTx) Testing Transport with Temperature Pertubations 027 13:58
Bravenec, R. Gentle, K. (FRC-UTx) Particle Transport Coefficients for Density Peaking in ITBs 028 14:05
Bravenec, R. Gentle, K. (FRC-UTx) Cold Pulse Effects in C-Mod 029 14:12
In, Y. In, Y. Proposed High Resolution ECE Edge Diagnostic 030 14:19
Terry, J. May, M. (LLNL) Edge Toroidal Rotation Measurements with Fast Time Resolution 031 14:26
       
       
  14:33 Coffee Break (15 Minutes)     14:33
         
12/12/01 14:50-15:46 H-Mode Pedestal and ELMs    
Session 4 Session Chair: B. Lipschultz    
Presenter First Author Topic  # Time
Leonard, A.* Leonard, A. (GA) ELM and Pedestal Characteristics versus Collisionality 032 14:50
Mahdavi, M.A.* Mahdavi, M.A. (GA) Determination of Neutrals Role on the H-mode Pedestal Structure 033 14:57
Perkins, F.W.* Perkins, F.W. (GA) Effect of Energetic Particles on the H-mode Transition and Pedestal 034 15:04
Whyte, D.* Whyte, D. (UCSD/GA) Measurement of Global Codeposition Rate and Wall Pumping on Alcator C-Mod 0341 15:11
Moyer, R.* Moyer, R. (UCSD/GA) Study scaling of the onset of Type I ELMs in DIII-D and C-Mod using wider range of power scan 035 15:18
Moyer, R.* Moyer, R. (UCSD/GA) Controlled Density Scan During H-Mode (gas puffing into H-Mode) in both EDA and ELMing regimes 036 15:25
Mossessian, D. Mossessian, D. Run Low Density H-mode to Shift the Fueling Sources Towards X-point 037 15:32
Mossessian, D. Mossessian, D. Scan Outer Gap to Study the Related Changes in the Pedestal Characteristics 038 15:39
Mossessian, D. Mossessian, D. Inner Wall Limited H-mode 039 15:46
         
12/13/01 9:30 -10:30 Burning Plasma Support Expts. and RF    
Session 5  Session Chair: R. Parker    
Presenter First Author  Topic  # Time
Granetz, R. Granetz, R. High Performance Operation at 2MA and 8 Tesla 040 9:30
Wolfe, S. Perkins, F.W. (GA) Demonstration Discharges for Burning Plasma Experiments 041 9:37
Marmar, E. Meade, D. (PPPL) Assess Potential of a Double Null Divertor Configuration for Next Step Burning Plasma Experiments 042 9:44
Snipes, J. Bombarda, F. Pellet Injection Experiments 043 9:51
Sugiyama, L. Sugiyama, L. Particle and Thermal Transport at High Density 044 9:58
Greenwald, M. Greenwald, M. Turbulent Transport and the Density Limit in Limiter Plasmas 045 10:05
Pitcher, C.S. Pitcher, C.S. The Effect of Inner Gap on H-Mode Threshold Power 046 10:12
Schilling, G. Schilling, G. (PPPL) ICRF Physics at 60 MHz 047 10:19
Marmar, E. Cecil, E. (Colo. Sch. Mines) Proposed Thin Foil Faraday Collector as a Lost Energetic Ion 048 10:26
         
  10:33 Coffee Break (10 Minutes)     10:33
         
12/13/01 10:45 - 12:00  MHD Issues    
Session 6  Session Chair: A. Hubbard    
Presenter First Author  Topic  # Time
Wolfe, S. Wolfe, S. Development of Increased Triangularity Equilibria in the new C-Mod Divertor Geometry 050 10:45
Snipes, J. Snipes, J. Beta Limiting MHD 051 10:52
Mossessian, D. Mossessian, D. Do ELMs Limit Pedestal Growth?  Power and Density Scans During ELMy H-mode at Different Triangularity 052 10:59
Mossessian, D. Mossessian, D. Shape and Power Scans to Study Possibility of Access to Type I ELMy H-mode 053 11:06
Mossessian, D. Mossessian, D. Dependence of Grassy ELMs Characteristics (Frequency, Amplitude) on Input Power/Pedestal Temperature 054 11:13
Porkolab, M. Nevins, W. (LLNL) Nonlinear Coupling to Quasi-Coherent Mode 055 11:20
Snipes, J. Snipes, J. Fast Scanning Double Magnetic Probe 056 11:29
Snipes, J. Snipes, J. Active MHD Spectroscopy of Alfven Eigenmodes 057 11:36
Snipes, J. Snipes, J. Active MHD Spectroscopy of MHD Instabilities 0571 11:43
In, Y. In, Y. Experimental Distinction between Tearing Modes and NTM in High Beta Plasmas 058 11:50
Granetz, R. La Haye, R.J. (GA) C-Mod/DIII-D/Jet "Wind Tunnel" Comparison of Neoclassical Tearing Modes 059 11:57
         
  12:04 Lunch (not provided)     12:04
       
12/13/01 13:30 - 15:30 Advanced Tokamak Expts. and Transport    
Session 7  Session Chair: J. Terry    
Presenter First Author  Topic  # Time
LaBombard, B. LaBombard, B. Scoping Density Control Options for Long-Pulse AT 061 13:30
Wolfe, S. Wolfe, S. Extended Pulse Length Opeation at Moderate Density with Increased ICRF Power 062 13:37
Marmar, E. Marmar, E. Use of an Upgraded Ultrafast CCD Camera to Image Ablation Trails from Lithium Pellets for Internal Magnetic Field Profile Measurements 063 13:44
Hosea, J. Bernabei, S. LHCD Target Plasma Development 0631 13:51
Perkins, F.W.* Perkins, F.W. (GA) 100% Bootstrap Fraction, Steady-State Tokamak Discharges 0632 13:58
Hubbard, A. Hubbard, A. Low Current and Density H-Modes 064 14:05
Hubbard, A. Hubbard, A. L-modes with High RF Power 065 14:12
Hughes, J.W. Hughes, J.W. Effects of Plasma Shape on H-mode Pedestal Characteristics 066 14:19
Hughes, J.W. Hughes, J.W. Effects of Shape on access to Grassy ELMs regime 067 14:26
Greenwald, M. Greenwald, M. Extension of EDA Boundary Studies to High Triangularity 068 14:33
Hubbard, A. Hubbard, A. L-H Threshold Studies 069 14:40
         
  14:47 Break      14:47
         
12/13/01 15:00 - Task-force Summaries and Overviews     
Session 7      
Presenter Task-force     Time
Hubbard, A. AT Issues AT Summary   15:00
Parker, R. Burning Plasma Support Burning Plasma Support Summary   15:15
Greenwald, M. Transport Transport Summary    15:30
Lipschultz, B.  Divertor/Edge Divertor/Edge Summary   15:45
Wolfe, S.  MHD MHD Summary   16:00
Schilling, G. RF Physics     16:15



Session #1: Advanced Tokamak, Internal Transport Barriers  
Session #2: Divertor Shaping and Pressures, Edge Turbulence, Edge Fueling, Edge Flows, Impurities

Session #3: DNB Transport Expts, Perturbations Expts, and New Transport Diagnostics

Session #4: H-Mode Pedestal and ELMs

Session #5: Burning Plasma Support Expts; and RF

Session #6: MHD Issues

Session #7: Advanced Tokamak Issues (Long Pulses, Density Control, and j(r) measurement); and Transport Expts.

Session #8: Summaries and Overviews of Task-force areas


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This page last updated  10/12/01 by Jim Terry