Alcator C-Mod Campaign 2007 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)

Date of Runs


Status
FY07
Priority

Research RunDays

Startup Days

ITPA/
ITER

RF

BT

Edge/Divertor











Phase Space of the SOL 409
LaBombard



H
1-2

ITPA
DSOL-3
none 8T
Retention with pumping
2007-805
Whyte


H
1




Blob characterization
2007-801
Terry


H
pb

ITPA


Fueling opacity
2007-806
Whyte


H,M
0.5-1




Window frame experiments
2007-803
Whyte


M
1




Lyman opacity
2007-808
Reinke


H
0.5

ITPA


WASP probe
465 Smick
1070404

H
1-2
1



WASP: topology effect on total flow vector
480 Smick









Scaling comparison of time-averaged transport and underlying turbulence
411
Lipschultz




H
pb


none

SOL turbulence in limited plasmas 429
+2007-815
Zweben 1070504


H
0.5-1




Co-current fluctuations
2007-813,487 Cziegler


M
0.5(pb?)




Broadband b-tilde in edge
2007-812
Greenwald


M
0-1




ELM ablation
2007-802
Whyte


M
0-0.5 (pb?)

ITPA


Transport











Reverse field, Slow evolution L-H transitions and enhanced L-mode
2007-311
McDermott


H
1



Reverse field
OH H-modes and L-H transitions
2007-308
LaBombard


H
1


none

Pedestal scalings and ion physics
2007-304,
312,316
483
Marr


H
1




Pedestal scaling/Magnetic shear
2007-314
(316)
Hughes


H
1




Particle transport in low-collisionality H-modes
2007-1102
(313,317,1005)
Greenwald


H
1




Effects of magnetic shear on edge transport
2007-307
479
LaBombard


H
1




Effect of magnetic shear on core transport
2007-1103
Greenwald


H
1




Electron transport via transient transport analysis
2007-1101
Marmar


H
1




Electron transport in low-density (neo-Alcator) ohmic plasmas
2007-1015
(MP400a)
472
L. Lin


H
1




Impurity transport
2007-1101
Reinke


H
1




ITB comparison of fluctuation measurements with simulation - saturated phase
2007-1106
(1002; 1005,1011,1012)
Fiore


H
1


70,80MHz

ITB fluctuations during formation phase- using reflectometer at low density
2007-1007
(1005,1011,1012)
Dominguez


H
1


70,80MHz

ICRF power scan-Impurity poloidal rotation
2007-306
(1010)
Bespamyatnov


M
1




SSEP sweep (rotation)
2007-303
MP405
Marr


M
1




Pedestal scaling in hydrogen H-modes
MP457 Greenwald


M
1




Study transport during reverse shear (current rise)
Rational q effect on transport
1104
(409,410,205,
701,702,703)
Austin


M
1




Balooning structure of turbulence (small bore R-sweep)
2007-1008
Ernst


M
1




Stereo imaging of Li pellet ablation (to diag?)
2007-1109
(1014)
Bose (L. Lin)


M
1




ITB formation/trigger - Bt scan with Ti profiles
2007-1004,
MP445
Rice


M
1




Momentum transport from L-H and H-L transitions
2007-301
Ince-Cushman



pb




XGC gyrokinetic simulation
2007-305
Chang



0




Edge particle transport from neutral transport analysis
2007-315
Hughes



pb




Er profiles from all relevant diagnostics
2007-1003
Rice



pb




Momentum transport and rotation studies
2007-1009
Ernst



0




Turbulence studies in LHCD plasmas
2007-1013
L. Lin



pb




High k, high frequency fluctuations in electron transport dominated regimes
400a
Greenwald


H
pb




Formation of Ohmic H-Mode ITB with Improved Diagnostic Set
401
477
Redi
Rowan


M





Separating ITB formation from initial transient phase of EDA H-modes
428 Mikkelsen, Ernst






70MHz (or 50?)

Poloidal Rotation: Field reversal experiments
437 Ince-Cushman



1





Radial Structure and Phase of QCM 476 P. Phillips








Identify cause of large rotation variation in ohmic plasmas
469 Mikkelsen








RF Heating & Current Drive Physics











RF Conditioning
355
Wukitch




N+1
SU


FFT commissioning and ELM effects on RF
2007-601
488
Y. Lin
1070501
1070503

H
0,pb
?



ICRF sheath study using marked tiles
2007-606
486
Wukitch


H
2
?



MCCD to shorten monster sawteeth
2007-605
Wukitch


H
1

ITPA MDC-5
50MHz

Investigate dependence of D(3He) minority heating and transition to mode conversion on 3He concentration, plasma temperature and density, and antenna phasing
390 Wukitch


H
1


50MHz
ICRF MC heating and LHCD synergy
2007-603
Y. Lin


M
1


50 or 78
5.4 or 7
ICCD for sawtooth contol
2007-604
Wukitch


M
1

ITPA MDC-5
78

2nd harmonic minority heating and fast ion spectra
2007-607
Porkolab


M
1


78

Heating and CD below all cyclotron resonances
2007-608
C. Phillips


M
0.5


43

MHD











LHCD effect on tearing mode stability
2007-404
Wolfe


H
1




NTM Stability at low collisionality
2007-405
Snipes


H
1




Measurement of LHCD effects on q(r) from Alfven eigenmodes in current rise
2007-408
Snipes


H
1




LHCD effects on q(r) from Alfven eigenmodes in current flattop
2007-409
Snipes


H
1




Evolution of AT target plasmas and Alfven cascades during the current ramp and beyond with LHCD q-profile control 2007-410
Porkolab


H
1




Studies of Alfvén eigenmode excitation during the sawtooth cycle in low density plasmas  2007-411
Edlund


H
1




Damping rate of Toroidal Alfven Eigenmodes at the threshold of stability in the presence of ICRF heated fast ions  2007-412
489
Sears


H
1.5




Try using FRCECE to see TAE mode structure  2007-413
Granetz


H
0,pb




Real-time detection and gas jet mitigation of locked mode disruptions  2007-414
Granetz


H
1




Determine minimum amount of gas required with Ar/He mixed gas jet disruption mitigation  2007-415
Granetz


H
1




Disruption mitigation & opacity studies using D2 massive gas injection  2007-418
Whyte


H
0.5




Joint experiments with JET on non-resonant n=2 magnetic braking
2007-910
478
Howell,
Hender


H
1




ffect of non-resonant non-axisymmetric fields on locked mode threshold  2007-401
Wolfe


M
1




Sensitivity of Stable TAE Damping to Profile Effects  2007-407
Snipes


M
2




Using fast, 2D bolometry to diagnose disruption mitigation radiation  2007-417
Reinke


M
0.5




Locked mode studies at different toroidal phase
402
Wolfe


M
2




Effects of 3D Error Fields on Magnetic Surfaces
407
Lao


M
.5




C-Mod/DIII-D/Jet Comparison of Neoclassical Tearing Modes 395
LaHaye, Granetz


M
1

ITPA


TAEs and RF tail losses
432 Granetz


M
1




Parametric Dependence of Moderate n Alfvén Eigenmode Damping Rates 404a Snipes


?

0.5




Integrated Scenarios - H-mode Baseline












Evaluation of integrated performance at high current (>1.5MA) and high power (>5MW)
2007-901
Marmar


H
1




Scaling of L-H transition at low density
2007-903
Snipes


H
1




H-mode density control and pedestal response to cryo-pumping
2007-904
485
Hughes


H
1




Effect of plasma shape and collisionality on ELMs
2007-906
(2007-908)
Terry
(Whyte)


H
1




ELM structure and energetics
2007-907
Terry


H
1




B-field scan for intrinsic rotation database
2007-911
Ince-Cushman


H
0.5


50
3.5
Torque-less toroidal rotation
DIII-D similarity
425 Degrassie

H
1




Comparison of small ELM regimes on C-Mod,NSTX, MAST
448 Maingi


H
1




Extension of pedestal scalings 410 Hughes


H
0.5



8
Gas fueling at ITER neutral opacity
2007-904
Greenwald


M
1




C-Mod/JET dimensionless identity at high field/current
382
Hubbard (Mossessian)


M
1

ITPA

8
Dimensionless parameter studies (rho* scan)
423
Petty


M
1

ITPA


C-Mod/JET Identity nu* Scan at High beta
392
Snipes


M
1

ITPA


Burn Control Simulation with ICRF
2005-116 Politzer



1




Reverse field pedestal studies
452 Hughes


M
1



Reverse
Shaping and control development for high elongation, I_N
362 Wolfe


H

.5



    Integrated Scenarios - Advanced Scenarios











Producing "hybrid scenario" on C-Mod with LHCD
2007-701
Hubbard


H
1




Lower Ip long pulse L- and H-mode scenario development
2007-702
466
Kessel
1070412

H
1




LHCD (j-profile) effect on ITBs
2007-705
Fiore


H
1


70MHz

Dynamic Modification of j(r) through H/ITB cycle
454 Kessel


H
1




Development of reverse shear scenario

Wolfe/Kessel


H
1




Divertor Power Handling for AT Plasmas, combined with Extended Pulse Length Operation at Moderate Density with Increased RF Power 435 Terry


M
1


78+80MHz (preferred),
50+80MHz possible

ITB control with LH heating
2007-707
Ernst, Marmar


M
1




Lower Ip long pulse H+ITB scenario development
2007-703
Kessel, Hubbard


M
1




Feedback control of ITBs
?
Wolfe,Hubbard


M
pb




Power Absorption in ITBs
341
Fiore


H
1


70/80 MHz

Lower Hybrid












Parametric dependence of LHCD
2007-201
Wilson


H

As much as possible



Optimizing plasma density and shape for LH coupling
2007-202
464
Wallace
1070329
1070330
1070413
1070427

H

??? as much as possible



Lower Hybrid Coupling studies with ICRF, Cryopump and H-mode
2007-203
Wallace


H
2?
as much as possible



Reaching zero or negative loop voltage for multiple tau_cr
2007-205
463
Parker


H
1
? (development)



Comparision of hard X-Ray and ECE measurements with synthetic code predictions during LHCD 2007-210
467
Schmidt


H
2?
1 (establish modulation waveform)



LH-driven fast electron diffusion time measurement
468 Schmidt
1070427
1070503







Lower Hybrid plus ICRF
High Te experiments
2007-201,206,208,
211
?


H
?




LHCD in H-mode
2007-203,205,211
?


H
?




Lower hybrid system checkout and initial operation
473 Wilson
1070328
1070329
1070330
1070411
1070413
1070426







Operations











Cryopump experiments
2007-101
475
LaBombard


H
2-3
4



Tungsten lamellae tiles
2007-102
Lipschultz


H
1.5-2




Maximize boronization through shape
2007-103
484
Lipschultz


H
1




Optimize control gains of fast vertical channel
471 Ferrara
1070406

H

1



Vloop=0 for 100% non-inductive current drive
461 Wolfe
1070410
1070425

H

0.5



Improved hydrogen-to-deuterium changeover using radiative terminations and disruptions
412a
Whyte
1070405
1070501

H

1-2



Fiducial wall pumping measurements for comparing operating conditions
419
Lipschultz


M
0.5




DPCS for density control
2007-108
Whyte


M
0.5




Localization of ECDC flux profiles and boron film growth using vertical fields
470 Whyte



ECDC/boronization





Diagnostics











Boron dust diagnostic
462 Bader
1070426


H
0.5
0.5



2D bolometer calibration
2007-507
Reinke


H
0.5




Kr VUV spectrometer calibration
459 Reinke


H
0.5




CXRS development
2007-509
482
McDermott


H
0.5-1




MSE calibration III
394 Scott


H

0.5-1



MSE edge sweeps
2007-1114
Ko


H

1



MSE polarization fraction
2007-1113
Ko


H

0.5



Li pellet imaging
2007-1109
Bose


H
1




Limited reverse pitch
2007-1115
Whyte


M
1




Measurement of Faraday rotation in MSE optics using invessel polarimeter
431 Scott, Ko


M
0.5


none

Pellet Imaging 353 ?
481
Bose

H 1+pb



Proof of principles test of BES for broadband fluctuations
474 Bravenec
1070405







Notes

1.  Listing is based on output from the post-forum task force prioritization meetings, not on the initial allocations from the EPC. Therefore the number of high priority tasks in each group will generally exceed the initial allocation to that group.

Last Updated 5/9/2007

Please sent comments and corrections regarding this page to Steve Wolfe