TRANSP 2305


Run Information

Run Time: t=0.14-1.0s
ICRF Module: TORIC (New nl Controls)
ICRF Power: 3MW @80MHz (Simulated)
ICRF Duration: 0.14-1.0s
LH Module: LSC
LH Power: 2.0MW @n0=2.75,4.0
LH Duration: 0.15-1.0s
Density Profile: Actual density barrier set at t=0.2s from 1001220016
Chi Modification: Yes, NKEMOD=0,-1 and TKEMOD=0.15

Noteworthy Switches: NZONES=20, LEVGEO=6(VMEC6),
QLIM0=15.0, NBOOSM=2, NJSMBOOT=2, NJSMLH=4,
NRAYSLH=50,hLH=0.002,DTMAXG=0.002
* Duplicate of 2277 with reload and newer namelist*
* Duplicate of 2279 with n=n*1.5 *
* Duplicate of 2300 with n-> 1001220016*

Comments:

This run uses an experimental double barrier from C-Mod shot 1001220016. The high density near the edge keeps the LH current from penetrating very far. The high density also means less total LH current to shap the J profile. Shear reversal is quickly lost. The overall temperature for this run is low which lowers the amount of bootstrap current. This may be interesting to try with specifying the chi profiles to see if the bootstrap fraction may be increased. The average fbs=0.44 while peaking at fbs=59%. May try increasing LH power. The temperature experiences an odd decrease at around 0.8s. For more information about the run see the input namelist.


The image below plots the total current vs time.

Integrated Current with Central Density
Legend:
Total Current: 		White
Lower Hybrid: 		Red
Ohmic Current: 		Green
Bootstrap Current: 	Blue

The figure below shows the actual power spectrum from the TRANSP output.
Power Spectrum
The figure below shows the inputl power.
Power Spectrum