Lower hybrid and conventional ECCD cannot be used in high b ST plasmas, where wpe wce ... Good agreement between ray. tracing codes (CURRAY, HPRT) Full-wave ...
Ray passes ~ 5.5 times between cutoffs on the LFS and the HFS. k = -7 m-1. Ray loses ~ 90% of power in two passes (in and out) for -7 m-1. 90% power lost ...
First scheduled run for HHFW experimental proposal XP# 617 was performed on ... Much of the data desired for this experiment was obtained but some additional ...
Unfortunately, HHFW trips rt-DAQ module in NTC for PRF 300kW ... edge rotation locking is avoided in 'correcting' direction - extending pulse length at high-b ...
Conduct initial tests combining available techniques to ... HHFW/NBI compatibility desirable for attaining ultimate target objectives. Couple HHFW into high ...
1. Introduction - Gary Taylor. 2. HHFW Research Plan - Joel Hosea. 3. EBW Research Plan - Gary Taylor. 4. Fast Ion Physics Research Plan - Eric Fredrickson ...
presented. by. Gary Taylor. In collaboration with. Cynthia ... null discharge and vary inner. and outer gaps; previously studied limiter and single null ...
Heating and CD Phase Scans in L-Mode and H-mode ... often tripped the ... go into H-mode before the NBI trigger, tripping the RF due to mismatch on load ...
Data is best fit with 2 Gaussian distribution function (hot and cold components) ... Pick-up from a heterodyne network is present at 31 MHz in both spectra. ...
RF Modeling Capabilities for NSTX: Edge Plasma and Non thermal Ion ... closed loop computation between full-wave (or ray tracing) module and Fokker Planck code. ...
Pot. Time (sec) Tor., Pol., Te. LCFS. T.M. Biewer, Oct. 20th, 2003. NSTX Physics Meeting. 11 ... EHe for c.c. is balanced (tor~pol), as for EHe of Ohmic. EC of ...
Heating and CD Modeling. TRANSP Packages GENRAY / CQL3D : ... CVS repository for code modules set up. discussed plans for developing interface routines ...
Recent data shows excitation by co beam ions at low IP, possibly revealing the ... system can potentially assess anisotropy drive and induced/channeling (Heidbrink) ...
Control System Hardware. High Speed low-latency (4ms) data acquisition FPDP ... Utilization of high-speed parallelized real-time computation enables innovative ...
in the ion cyclotron range of frequencies: theory and experiment ... ln (flux / Energy1/2) beam injection. energy. at RF end 10 ms 20 ms. noise level. 108251 ...
Wed july 8: test Labview software - see no counts, trigger did not work - no gate Vin ... Fri july 10: try again with smaller aperture & thicker foil, still no good. ...
Pulse averaged approximate sus versus S (S is averaged over the same time window as ... with 100% non-inductive current using only NBICD and pressure driven currents ...
Magnetic fluctuations and electron transport in a spherical toakmak ... Properties of ... are retained, the trapped electron term is too feeble to drive ...
Y. Takase, A. Ejiri, S. Kainaga, H. Kasahara1), R. Kumazawa1), T. ... Orbit-averaged toroidal precession is co-directed for all confined orbits. (c) ctr trapped ...
assessing high-beta stability, confinement, self-consistent high ... Assess density control with Li evaporation crucible. 2006-7 Assess and integrate cryo-pump ...
For no external kink stabilization, qmin 2 appears to be most viable for ... Stabilization of the n=1 kink would yield attractive configurations (n=1 ...
A method to determine the error bars on thermal conductivities for a given NSTX ... PHOENIX upgrades now writing input data files initial runs to occur this week ...
... machine configurations developed for saddle coil, modular coil, and ' ... Result in smoother coils and lower current density for saddles and modulars. 10/4/09 ...
Tests of high k, multiple approaches for startup. Partition into startup (100-150kA) ... Results. Several areas require attention: Timely availability of MSE CIF data ( begin ...
Include 'no-avalanche' reference. NB voltage scan, NPA scan. sh#128446. R [cm] t [ms] ... shift, ii) quasi-stationary phase (only lower f's survive), during which iii) ...
Near-midplane trim' PF coil #3 produces. a follow BV profile. matched. Field null. region ... C. Bush, ORNL. Solenoid-free current-start-up scenario including PF4 ...
Fluctuation assessment through FIReTIP, MIR and high-k scattering systems (UC Davis) ... UC Davis collaborations provide optics. and detector array. 1-D. 2-D ...
Fast voltage monitoring system. March 11: Conditioned the ... March 12: First day of main XP - Inductive discharge development that had reduced CS pre-charge ...
Multi-pulse Thomson scattering (30 ch, 60 Hz) T-CHERS: Ti(R) and Vf(r) (51 ch) ... cleaning, photos to be completed, and then install the NB duct over the holidays. ...
6Columbia University, New York, NY, USA. 7General Atomics, San Diego, CA, USA ... the central solenoid simplifies the engineering design of tokamaks (Re: ARIES AT ...
... to experimental data (FY03-08) ... Work with MAST NTM experts on NTM similarity experiments (FY04-06) Measure m-numbers with new poloidal Mirnov array (FY05-06) ...
... for and how to manage the control development effort (Gates, Mueller, Bell) ... ions with large orbits; Alfven eigenmodes and turbulence with Vfast/VA 1 ...
... may indicate anisotropy in parallel v. perp. dist. func. ... 'perp.' temperature grows like sq.root PRF. Much future work remains. T. Biewer, March 3rd, 2003 ...
The NB duct will be re-installed on November 20th for a late November pump ... The cleaning of the lower divertor tiles was suggested, and the request was made ...
In the longer term we would couple with stability codes to get accurate measures ... Initial tests of non-Maxwellian conductivity METS fast ion distribution ...
Columbia University, 4/4/03. Power Plant Studies Show the Potential Benefits of Advanced Tokamaks ... L. R. Baylor, Phys. Plasmas, 2000, on DIII-D. FIRE Uses ...