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In this talk, we will discuss the progress towards ignition on the National Ignition Facility (NIF) at Lawrence Livermore National Laboratory (LLNL) in Northern California. We will cover the some of the setbacks encountered during the progress of the research at NIF, but also cover the great advances that have been made including the achievements of greater than unity fusion ‘fuel gain’ and alpha-heating...
The Indian Test Facility (INTF) for Neutral Beams is designed with the objective to not only test the performance of an ion source but also to characterize the transmission of the Neutral Beam to a length of 20.66 m and thereby generate adequate database on the quality of the beam that is required for the CXRS diagnostics for measurement of Helium ash content in the fusion plasma.
Recent experiments and simulations of proton generation and focusing in cone geometries have led to a better understanding of the important effects of the electric fields in and around the focused beam.1 The surrounding cone structure is shown to improve the focusing significantly, resulting in beam fluence diameters ≈ 55µm for protons with energies Ep >3 MeV. PIC-hybrid simulations predict that...
This paper reports a design modification of a biochip microchannel plasma blood separator. Among the three geometric characteristics, i.e. bifurcation, constriction and bending channel, which have been widely used in promoting biofluid separation, the original separator (Figure 1) has put the focus on the bifurcation effect and also adopts a constriction at the inlet end to implement some constriction...
The characteristics of relativistic electrons generated in short-pulse laser plasma interactions are important for evaluating the success of the fast ignition concept. The important parameters include the spectrum, laser to electron conversion efficiency, and divergence angle of the electrons at the interface. Simulation results using 3-D particle-in-cell (PIC) techniques in fast ignition geometries...
An astrophysically relevant experiment is compared to the output of a multidimensional radiation transfer code in which populations and radiation are self-consistently treated. Experimental Al Ly α spectra obtained with a very high-resolution spectrometer are presented as quantitative evidence of dot plasma non-planar expansion. Analysis of these spectra using the code is performed, in particular...
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