DBS¶
Contacts: Quinn Pratt
Short Description¶
Multi-Channel Doppler Back-Scattering (DBS) diagnostic analysis
Long Description¶
The OMFIT - DBS module has been developed as an integrated approach to visualizing and analyzing data from the DIII-D Multi-Channel Doppler Back-Scattering (DBS) diagnostic. Data from both V-band systems (one at the 60-deg port, another at the 240-port) and the W-band system at the 240-port can be used in analysis. Analysis over ranges of times is a primary feature of this module. DBS quadrature spectrum fitting is used for Doppler shift calculation. Ray tracing (GENRAY) is used to calculate scattering parameters. DBS outputs include: scattering wavenumbers, turbulent flow velocity, radial electric field, omega_E, turbulent dimensionless parameter k-theta * rho-s.
Typical workflows¶
Fetch raw DBS data
DBS spectrum analysis and visualization
Doppler shift calculation from the DBS quadrature spectrum
GENRAY setup with EFIT and Profiles
Run GENRAY with DBS parameters
Calculate derived quantities and plot
Supported devices¶
DIII-D
Contributors¶
List of contributors sorted by number of lines authored:
8224 Quinn Pratt
1004 Fusion Bot
166 Orso Meneghini
4 David Eldon
2 Sterling Smith
Submodules¶
None