The ideal in situ plasma facing component (PFC) diagnostic for magnetic fusion devices would perform surface element and isotope composition measurements on a shot-to-shot (∼10 min) time scale with ∼1 μm depth and ∼1 cm spatial resolution over large areas of PFCs. To this end, the experimental adaptation of the customary laboratory surface diagnostic--nuclear scattering of MeV ions--to the Alca...

during the first operation phase at Wendelstein 7-X K. Rahbarnia1, T. Andreeva1, A. Cardella2, B.B. Carvalho3, M. Endler1, D. Hathiramani1, J. Geiger1, O. Grulke1, S. Lazerson4, U. Neuner1, J. Svensson1, H. Thomsen1, A. Werner1 and Wendelstein 7-X Team 1 Max-Planck Institute for Plasma Physics, Wendelsteinstr. 1, 17489 Greifswald, Germany 2 Fusion for Energy, Boltzmannstr. 2, 85748 Garching, Ge...

Plasmas have a broad field of applications, such as air-breathing hypersonic vehicles (plasma control for scramjet engine), spacecraft atmospheric entries (influence of precursor electrons and prediction of blackout phenomenon), high-enthalpy wind tunnels (plasmatron, arc-jet, and shock tube facilities), lightning phenomena, discharges at atmospheric pressure, laboratory nuclear fusion and astr...

gyrokinetic particle and continuum simulation D. R. Ernst, J. Lang, W. M. Nevins, M. Hoffman, Y. Chen, W. Dorland, and S. Parker Plasma Science and Fusion Center, Massachusetts Institute of Technology, 167 Albany Street, NW16-258, Cambridge, Massachusetts 02139, USA Center for Integrated Plasma Studies, University of Colorado, Boulder, Colorado 80309, USA Lawrence Livermore National Laboratory,...

For many years, astronomers interested in white dwarf stars have promised that the study of these relatively simple compact objects would ultimately lead to useful information about the physics under extreme conditions of temperature and pressure. We are finally ready to make good on that promise. Using the observational techniques of the Whole Earth Telescope developed over the past decade, an...

Fusion of apposed nuclear envelopes is frequently seen at telophase during postmitotic reorganization of the nucleus, but only rarely at other times in the cell cycle. We attempted to define an experimental system for studying changes in the nuclear envelope related to the cell cycle by varying the time of pronuclear apposition in fertilized Lytechinus variegatus eggs. This approach was based o...

59 IMR KINKEN Research Highlights 2012 IMR KINKEN Research Highlights 2012 A new framework of bidirectional collaborative research program has been started in 2010 for the study of nuclear fusion reactor materials. By utilizing the environment of the research center at each university, joint research is conducted interactively between the centers and the National Institute of Fusion Science (NI...

During yeast mating, cell fusion is followed by the congression and fusion of the two nuclei. Proteins required for nuclear fusion are found at the surface (Prm3p) and within the lumen (Kar2p, Kar5p, and Kar8p) of the nuclear envelope (NE). Electron tomography (ET) of zygotes revealed that mutations in these proteins block nuclear fusion with different morphologies, suggesting that they act in ...

An unavoidable category of molecular species in large-scale tritium applications, such as nuclear fusion, are tritium-substituted hydrocarbons, which form by radiochemical reactions the presence (circulating) and carbon (mainly from steel vessels tubing). Tritium-substituted methane species, CQ4 (with Q = H,D,T), often precursor for higher-order reaction chains, thus particular interest. Here w...