A5024039192- Particle accelerators and beam dynamics
- Laser-Plasma Interactions and Diagnostics
- Magnetic confinement fusion research
- Plasma Diagnostics and Applications
- Ion-surface interactions and analysis
- Particle Accelerators and Free-Electron Lasers
- Pulsed Power Technology Applications
- Nuclear Physics and Applications
- Superconducting Materials and Applications
- Aquaculture Nutrition and Growth
- Metal and Thin Film Mechanics
- Fusion materials and technologies
- Laser-induced spectroscopy and plasma
- Fish Biology and Ecology Studies
- Gamma-ray bursts and supernovae
- Electrostatic Discharge in Electronics
- Advanced Topology and Set Theory
- Vacuum and Plasma Arcs
- X-ray Spectroscopy and Fluorescence Analysis
- Fish Ecology and Management Studies
- Mass Spectrometry Techniques and Applications
- Gyrotron and Vacuum Electronics Research
- Electron and X-Ray Spectroscopy Techniques
- Laser Design and Applications
- Electromagnetic Launch and Propulsion Technology
Los Alamos National Laboratory
1988-2022
Parks Canada
2021
National Metallurgical Laboratory
2003-2017
Lawrence Berkeley National Laboratory
2006-2015
University of Michigan
2015
National Dairy Research Institute
2015
University of California, Berkeley
2005-2008
Institute for Marine Biosciences
2002-2007
National Research Council Canada
2002-2007
Rutgers, The State University of New Jersey
2006
Longitudinal compression of a velocity-tailored, intense neutralized ${\mathrm{K}}^{+}$ beam at 300 keV, 25 mA has been demonstrated. The takes place in 1--2 m drift section filled with plasma to provide space-charge neutralization. An induction cell produces head-to-tail velocity ramp that longitudinally compresses the beam, enhancing peak current by factor 50 and producing pulse duration about 3 ns. This measurement confirmed independently two different diagnostic systems.
(w(j), S(j)w(j))k 0 such that S(j)wCj) =Xw(j). Hence Sw=Xw+p, where p is a nonnegative n-vector for which (p, w) = 0. If w not characteristic vector of S then (p,p) >0 and it easy to verify, using the symmetry S,
Oxynticopeptic cells of fish stomach are thought to secrete less acid than the specialized parietal mammalian stomach. Gastric acidity, however, has not been directly compared between and mammals. We therefore fed rainbow trout rats same meal, found that lowest postprandial pH was 2.7, which only transiently sustained for 1 h, whereas rat 1.3, 3 h. Postprandial small intestine slightly higher in (approximately 8.0) 7.6), but large similar 8.0). Addition acids feeds, an attempt aid weak...
PRABIR ROY(l)Introduction.There are three classical set-theoretic notions of dimension; they [2, p. 153]
Experimental techniques to provide active neutralization for space-charge-dominated beams as well prevent uncontrolled ion beam by stray electrons have been demonstrated. Neutralization is provided a localized plasma injected from cathode arc source. Unwanted secondary produced at the wall halo particle impact are suppressed using radial mesh liner that positively biased inside drift tube. Measurements of current transmission, spot size function axial position, energy, and source conditions...
In preparation for the high luminosity upgrade of Large Hadron Collider (LHC), LHC Accelerator Research Program (LARP) is developing a new generation large aperture high-field quadrupoles based on Nb <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> Sn technology. One meter long and 120 mm diameter HQ are currently produced as step toward eventual 150 mm. Tests first series coils revealed necessity further optimization coil design...
In heavy-ion inertial-confinement fusion systems, intense beams of ions must be transported from the exit final-focus magnet system through chamber to hit spots on target with radii about 2 mm. For heavy-ion-fusion power-plant scenarios presently favored in U.S., a substantial fraction ion-beam space charge neutralized during this final transport. The most effective neutralization technique found numerical simulations is pass each beam low-density plasma after focusing. To provide...
As a technique for heating matter to high energy density, intense beams of heavy ions are capable delivering precise and uniform beam deposition relatively large sample. The US ion fusion science program has developed techniques diagnosing warm dense (WDM) targets. We have WDM target chamber suite diagnostics including fast multi-channel optical pyrometer, streak camera, VISAR, high-speed gated cameras. Initial experiments heat targets by both the compressed uncompressed parts NDCX-I beam,...
The macro and trace mineral composition of vertebrae muscle in wild cultured haddock Melanogrammus aeglefinus was determined. Results indicated that deposit c . 10% higher amounts than salmonids. Based on distribution between the analysed tissues as well concentration differences, minerals were divided into four categories: (1) As, Mn, Na, S Zn did not show any significant ( P > 0·05) variation both vertebrae; (2) Cr, Co, Mg, Mo Si concentrations culture stocks vary but showed differences...
Significant experimental and theoretical progress has been made in the U.S. heavy ion fusion program on high-current sources, injectors, transport, final focusing, chambers targets for high energy density physics (HEDP) inertial (IFE) driven by induction linac accelerators. One focus of present research is beam associated with quadrupole focusing intense, space-charge dominated heavy-ion beams, including gas electron cloud effects at currents, study long-distance-propagation such as...
Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation C. Thoma, D. R. Welch, S. Yu, E. Henestroza, P. K. Roy, Eylon, Gilson; Comparison of experimental data three-dimensional simulations ion beam neutralization from the Neutralized Transport Experiment. Phys. Plasmas 1 April 2005; 12 (4): 043102. https://doi.org/10.1063/1.1854174 Download citation file: Ris...