The Department of Energy sponsors a laboratory that is currently working on magnetic fusion devices based on what principle?
National Spherical Torus Experiment The National Spherical Torus Experiment (NSTX) is an innovative magnetic fusion device based on the "spherical tokamak" concept. It was constructed by the Princeton Plasma Physics Laboratory (PPPL) in collaboration with the Oak Ridge National Laboratory, Columbia University, and the University of Washington at Seattle.
ETH Laboratory of Ion Beam Physics The ETH Laboratory of Ion Beam Physics (LIP) traces isotopes for archaeological applications such as radiocarbon dating, geology, and pharmaceutical applications The major focus is accelerator mass spectrometry (AMS), and ion beam applications in materials sciences. Included in this focus are novel applications of ion beam based techniques as they can be applied to emergent fields within archeology, earth sciences, life sciences, and fundamental physics. Another part of this focus is participation in the development of the next generation, accelerator mass spectrometry machines. It also serves as an available laboratory for users interested in applying the techniques of ion beam analysis.