Alcator C-Mod Campaign 2003 Experiments

The following table is based on the tabulation of high priority Physics experiments generated following the C-Mod Ideas Forum and subsequent submissions.


 

Topic/Experiment

MP#

Proposer(s)

Dates

 Complete

Run Days

RF

BT

DNB

Edge/Divertor

  

B. Lipschultz (coordinator)
         
 Turbulence Imaging near density limit. Experiment/Theory Comparison 319
 Terry, Zweben
 1020919
  
1
 none -5.4
  
Edge Turbulence Statistics
(piggyback-
Inner/outer SOL comparison
Effect of Inner Divertor mod.
Poloidal flows in SOL
 311
 LaBombard,Carreras, et al.
 1020809
1030522
  
1
 none
 -5.4  
Fiducials to characterize boronization
Lipschultz

(0.7)
 78/80 MHz
 -5.4
Instrumented Divertor Leakage Experiments
 313
 LaBombard
 1020725
1
 none
 -5.3
New approach to study of turbulent edge plasma fluctuations
 332
 Grulke
 1030603
1030604(1/2d)
1030613(1/2d)
0.5pb
1+
 a) none
b) none
c)>2MW
 -5.4
Edge plasma flows in upper vs lower x-point discharges
 335
 LaBombard
 1030619
1030630(1/2d)
1
 none
 -5.3

Transport

  

M. Greenwald (coordinator)
         
Neutral/Plasma effects on pedestal widths
 320 321
 Mossessian
 1021030
  
2
 78/80 MHz
 -5.4  
Triggering ELMs with current ramps
 282
 Mossessian
 1030612(1/2d)
1030613(1/2d)

78/80 MHz
 -5.4
Phase Space for ELMy/EDA regimes
 304
 Greenwald
 1020930
1021008(1/2d)
1021009
1021031
  
2
 78/80 MHz -5.4  
Density Limits, Transport and Turbulence
 306 Greenwald, Labombard
 1021107(1/2d)




Local L-H threshold study using new diagnostics 137B or Rev. Hubbard
 
1
  78/80 MHz  -5.4  
Faraday Rotation Diagnostic development
Tejero, Irby
 1021112(1/2d)

none
 -5.4
Ohmic H-modes (rotation profile)
 312
 Lee
 1020801
1020815
1021016
1
 none
 -4.3
Developing shape for C-Mod/JET identity experiment
 315
 Mossessian
 (1020719)
1020904
1021104
1030606
1
 1-3MW
80MHz
 -5.4
MSE Calibration
 259, 322
 Yuh
 1020627
1021004
1021107(.5pb)
1030521
1
 none
 -5.4
 x
CXRS Commissioning
 265
 Rowan
 1021017
1
 none
 -5.3
 x
TF Scan rotation profile
 325
 Lee
 1021105
1
 80MHz
 -4 : -6.1
Edge Minority Heating for H-mode Control
 330
 Zweben,Terry
 1030604(1/2d)
1+
 78-80MHz
2MW
 -3.4:-6.8
Density Limits and Turbulence
 333
 Greenwald
 1030523
1+
 none
 -6
QC Mode-Radial Extent and High frequency companions
 334A
 Greenwald
 1030703
1
 none
 -5:-2.5
Measurements of 80 kHz mode observed during off-axis RF ITB's
 336
 Lynn

1(pb?)
 70,80MHz
 -5.5
 x
Temperature scale length measurements using Btor sweeps
 337
 P. Phillips

1
 none
 -5.4
Lots of Measurements of the QC mode
 338
 Sampsell

2
 1 ohmic
1-5MW 78-80MHz
 -5.2
-5.6:5.7
 x
Investigation of fast edge response at the L-H transition
 340
 Hubbard
 1030620
1
 <4MW
 -6.2
Density pedestals in L- and H-mode plasmas
 342
 Hughes
 1030630(1/2d)
.5
 1-3MW
 -5.4
L-Mode Performance Evaluation
 347
 Greenwald
 1030701
   1
 3-4MW
 -5.4
Measurements of ECE Broadband fluctuations
 352
 Lynn
 1030702(.5pb)
3shots


Study of striations in Li pellet ablation clouds 353 Bose
 1030709(pb)
.5+pb
 3MW
 -5.4
Hydrogen tail studies using deuterium DNB
 354
 Scott
 1030715
1
 ?
 -5.4,-4.1
 x

RF Heating & Current Drive Physics

  

G. Schilling (coordinator)
         

Engineering & Operations (as long as it takes)

    
         
D, E, and J-port Antenna Evaluation and Comparison
High Power RF
 326
 Wukitch
 1021029(1/2d)
1021107(1/2d)
1030528
1030605
?
 70/80 MHz
78/80 MHz
 -5.2?
ICRF Mode Conversion Poloidal Flow Drive
 343
 Lin
 1030711
1
 78/80MHz
1-4MW
 -5.1,-7.3
Antenna Evaluation
 349
 Wukitch
 1030708(1/2d)
1030710(1/2d)
1
 3MW+
 -5.4
Initial MCCD Experiments
 345
 Wukitch
 1030710(1/2d)
1030716
1
 3MW
 -5.7,-8

MHD

   S. Wolfe (coordinator)
         
Core MHD : distinction between classical TM and NTM
   308 In
 
1
 78/80 MHz
 -5.4
  
Initial Active MHD TAE Experiments
 316
 Snipes
 1021003
1031107(.5pb)
1030520
1
 none
 -3.5:-6
Plasma Initiation without commutation
 329
 Hutchinson
 1030515
1+
 none
 -5.4
Initial Locked Mode studies with non-axisymmetric control coils
 331
 Wolfe
 1030507
 X
 1
 none
 -5.4
Mode Locking Studies at Lower Current
 339
 Hutchinson
 1030618
1
 none
 -4.0
PF Error Field Evaluation
 346
 Wolfe
 1030717(1/2d)
 X
 .5
 none
 0

Burning Plasma Support

  

S. Wolfe (coordinator)
         
High Performance at 5.4T/1.5MA D(H)
comp. to 8T/2MA D(He3)
Marmar, Granetz

2
 78/80 MHz
 -5.4
-8
2MA Operation of C-Mod
 328a
 Marmar
 1021108




High Performance Operations at 5.0T
 318
 Marmar
 1020903
1030529
1030611
1030617
1+
 70/80 MHz
 -5.0
FIRE-relevant DN assessment
Meade

1.5
 78/80 MHz
 -5.4?
Current Rise optimization

(combined with Hi-performance ohmic 8T plasma)
247b Snipes, Sugiyama.et al.
  1.5
 78/80MHz 

4-7MW

 -5.4, 8T  
H-mode threshold for inner-wall limited discharges
Pitcher

0.5
 78/80 MHz
 -5.4

Advanced Tokamak

   A. Hubbard (coordinator)
         
H-mode fueling/pumping unbalanced DN
323
 Labombard/ Whyte
 1021002
1
 78/80 MHz
 -5.4
ITB Barrier location - Ip scan
 301
 Rice
 1020823
1020827
1020925
1020927
1021001
1021010
1
 78/80 MHz
 -4.5?
ITB Barrier location - RF into ohmic ITB
 299
 Fiore
 1020816
1020926
1
 70/80 MHz
 -4?

ITB - Access Conditions and Hysteresis
 305
 Greenwald
 1020828
1
 70/80 MHz
 -4.5?
ITB threshold/trigger via Bt ramps
 300
 Rice, Lee

1
 78/80 MHz
 ?
High power off-axis ITB
 303
 Rice
 1030610
1030702(1/2d)
0.5
 78/80 MHz
 -6.1
Density Control via Hi-power L-mode
Hubbard

0.5
 78/80 MHz
 -5.4
Current profile modification using Ip startup &
via Ip ramp after ITB formation
302
 Porkolab

Rice

1.5
 78/80 MHz
 -4.5?
ITB Formation with 2 freq ICRF in Optimized shear plasmas with Ip ramp (startup)
 324a
 Porkolab
 1021022
1021023
1021025
 1-2
 70/80MHz
 -4.5
High Bootstrap Fraction Regimes
 307
 Parker
 1021101
1
 70/80 MHz
 -5.4
ITB Study with Expanded Diagnostic Set
 317
 Fiore
 1021011
1021018
1021024
1
 70/80 MHz
 -4.3: -6.3
Developing low ne EDA H-mode targets for LHCD
 327
 Hubbard
 1021106
1030530
1 or 2
 80MHz
 -5.4
Power Absorption in ITBs
 341
 Fiore

1
 70/80 MHz
 -5.4 ?
100% bootstrap fraction plasmas
 344
 Politzer,Perkins
 1030702(1/2d)
3x1/2+1
 80, 70/80 >4MW
 -4:-7
q-profile control nd ELMy H-mode studies with Ip ramp and ICRF Heating
 351
 Porkolab
 1030709
1
 >4MW
 -5.4,-4.5
J-profile modification by off-axis heating of PEP mode
Marmar

0.5
 78/80 MHz
 ?
Long pulse with High power RF
Wolfe

1
 78/80 MHz

Operations







Initial tests of the Boron Injector
 348
 Irby, Rosati
 1030715(pb)
1
 none
 any

Notes:

  1. Experiments shown in Green were submitted in FY03
Last Updated 07/18/2003

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