TRANSP is a set of tools for time dependent analysis and simulation of tokamak plasmas. The most common use of TRANSP is to analyze the results of tokamak experiments. The major tokamak facilities, AUGD (MPIPP), CMod (MIT), DIII-D (General Atomics), JET, MAST (Culham), HL2A (China) and NSTX (PPPL) all use TRANSP, as deployed in the FusionGrid, to carry out these analyses of experimental data.
A typical TRANSP analysis run includes the following data from measurement, all functions of time:
A control namelist specifies model options, and input and output data are stored in an MDSplus tree.
The TRANSP FusionGrid service will take the above input data and compute a detailed time dependent simulation of the tokamak plasma experiment, including particle, momentum and energy balance of thermal plasma species, current diffusion, detailed information on the coupling of neutral beam or RF heating and/or current drive into the plasma, detailed information on the plasma fusion reactions, diagnostic simulations, and much much more: of the order of 1000 scalar and profile functions altogether.
Generally, TRANSP operates best in conjunction with a tokamak experiment containing a fairly mature diagnostic set and diagnotic data analysis capability. A certain amount of site-specific capability is needed to be able to prepare the input data.
TRANSP can be and is also used for predictive simulations, ranging from mild perturbations of experimentally known plasma conditions to whole plasma simulations of devices not yet built.
Researchers interested in utilizing the TRANSP code should visit the TRANSP web page at http://w3.pppl.gov/transp/.
Request for a FusionGrid authorization to run TRANSP and questions about TRANSP should be addressed to Doug McCune of PPPL at dmccune@pppl.gov.
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