Thank you, I am glad this information is helpful. The data from that sample was acquired from the undergraduate plasma laboratory course at UCLA (PHYS 180E). There is a photograph of the plasma device here, https://davidpace.com/ucla-physics-featured-in-physics-today/

In order to get data from a tokamak, you would have to contact the appropriate research team (typically a university) and ask for some. You might find a suitable group close to you by searching online.