Large scale simulations, Data management, Data Visualization

Using NERSC (National Energy Research Scientific Computing Center) to conduct linear and nonlinear large scale (up to 1,000,000 core hours) gyrokinetic simulations for fluctuations in the pedestal of magnetic confined thermal nuclear fusion device – DIII-D national fusion facility.
Information such as the equilibrium profile provided by experimentalists is not always in a standard format. A series of pre-processing tools are constructed to create a standardized data frame that can be read by the simulation packages and other reduced models.
The results of simulations have up to 30TB of data per simulation. A series of post-processing tools are constructed and revised to extract the information such as mode of instabilities, frequency and growth rate, transport-level etc.
A synthetic diagnostic was constructed to mimic the experimental diagnostic tool. The results have been published in 3 journal articles.

Using NERSC (National Energy Research Scientific Computing Center) to conduct linear and nonlinear large scale (up to 1,000,000 core hours) gyrokinetic simulations for fluctuations in the pedestal of magnetic confined thermal nuclear fusion device – DIII-D national fusion facility.
Information such as the equilibrium profile provided by experimentalists is not always in a standard format. A series of pre-processing tools are constructed to create a standardized data frame that can be read by the simulation packages and other reduced models.
The results of simulations have up to 30TB of data per simulation. A series of post-processing tools are constructed and revised to extract the information such as mode of instabilities, frequency and growth rate, transport-level etc.
A synthetic diagnostic was constructed to mimic the experimental diagnostic tool. The results have been published in 3 journal articles.

Slab-like micro-tearing mode (SLiM)

A reduced model for Slab-Like Microtearing mode (SLiM) is created to rapidly assess the high-frequency magnetic fluctuations in the pedestal region with 0.001% of the simulation cost. Such work has been published in 4 journal articles and presented in the 2 invited talks.
The model has been used to study discharges across different fusion devices across the world, which has good agreement with experiments.
The reduced model has a wide range of applications. A user-friendly GUI is developed, and such GUI is currently publicly available.

High power (3Watt) infrared laser was tested and mounted for the polarized Helium 3.
Polarimeter was constructed using a surface mount high gain op-amp, a low noise environment is needed for a useable signal-noise ratio. The printed circuit board (PCB) was designed using KiCAD with reducing cross talk and impedance in mind.
All the optics and the circuits are placed in the metal box to be shielded from the high-intensity radio-frequency wave which will be turned on during the experiment. The mounts are printed using a 3D printer designed by Sketchup.

The lead (Pb) lead collision creates the heated quark-gluon plasma that provides insight into the early stage after the Big Bang.
Monte Carlo simulations using PYTHIA and JEWEL are performed to be compared with the Pb-Pb collision at 2.8TeV conducted in the European Organization for Nuclear Research (CERN) A prediction was made on 5TeV collision for future experiments. the results have been presented in a poster in the American Physical Society (APS) Division of Nuclear Physics (DNP) annual meeting.
The dataset is managed using ROOT to visualize the ratio of the photon and jet momentum to be compared to the experiment.

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