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The dynamics of relativistic uranium-ion beams stripped by foils from Be to Au is investigated in the 100–500 MeV/u energy range. Calculations of the charge-state distributions of uranium fractions as a function of foil thickness are performed using the BREIT code, based on the analytical solution of the balance rate equations for the ion charge-state fractions. Relativistic electron-loss and electron-capture cross sections, required for BREIT as input data, are calculated for interactions of U q + ions, q = 65–92, colliding with Be, C, Al, Ti, Cu, Mo, W, and Au atoms. The beam energy losses are found to be rather small, less than 20%, and are not accounted for in calculations. Calculated charge-state distributions are compared with available experimental data, obtained at the GSI (Gesellschaft für Schwerionenforschung) and BEVALAC (Bevatron Linear Accelerator) facilities, and with calculations by the GLOBAL code created at GSI.The optimal conditions are predicted for production of bare, H-like, He-like and Li-like uranium ions with the largest probabilities. Dependencies of the equilibrium thicknesses for uranium charge-state fractions on the initial charge of incident ions are investigated. [ABSTRACT FROM AUTHOR]

Abstract: Heavy ion beams have favorable energy deposition behavior because they can penetrate and deposit their energy well inside the target. Ion beams have potential uses in fields including heavy ion beam fusion, high-energy density physics and material processing. Intense heavy ion beams can generate high-energy density matter in the laboratory under extreme density and pressure conditions. Additionally, in heavy ion fusion, a stringent requirement for successful fuel ignition and sufficient fusion energy release is that the ion energy deposition profiles are calculated precisely in the energy absorber layer. In this work, the OK2 code was used to simulate the heavy ion beam energy deposition in various target materials, and a computer program was written to provide 3D visualization of the results. The heavy ion beams used in this work were composed of lead, uranium, and cesium ions with energies of 8GeV and carbon ions with energies of 5MeV. The targets included two shapes: a monolayer sphere that can be used in direct-driven fusion and a cylindrical shape that is common in indirectly driven heavy ion fusion. [Copyright &y& Elsevier]

X-ray emission from Xe30+ ions at 350–600 keV impacting on an Au target was investigated at the Heavy Ion Research Facility at Lanzhou. Characteristic X-rays of Xe ions at energy of about 1.65 keV were observed. This X-ray emission is induced by the decay of very high Rydberg states of Xe ions. It was also found that the yield of such characteristic X-rays is decreasing with increasing the projectile kinetic energy. Simultaneously, the yield of the characteristic Au X-rays from the M shell increases also. These phenomena are qualitatively analyzed with the classical Coulomb over the Barrier Mode (COBM) for highly charged ions interacting with solid state surfaces. [ABSTRACT FROM AUTHOR]

The HypHI experiment for precise hypernuclear spectroscopy with induced reactions of stable heavy ion beams and rare isotope beams is currently under preparation at GSI. The main goal of the HypHI project is to study neutron and proton rich hypernuclei and to measure directly hypernuclear magnetic moments at GSI and FAIR. In the first HypHI experiment (Phase 0) planned in 2009, the feasibility of precise hypernuclear spectroscopy with heavy ion beams will be demonstrated by observing π- decay channels of $_\Lambda ^3 {\rm{H}}$, $_\Lambda ^4 {\rm{H}}$ and $_\Lambda ^5 {\rm{He}}$ with 6Li projectiles at 2 A GeV impinging on a 12C target. An overview of the HypHI project and the details of the Phase 0 experiment will be discussed. [ABSTRACT FROM AUTHOR]

Abstract: During the past two years, significant experimental and theoretical progress has been made in the US heavy ion fusion science program in longitudinal beam compression, ion-beam-driven warm dense matter, beam acceleration, high brightness beam transport, and advanced theory and numerical simulations. Innovations in longitudinal compression of intense ion beams by propagating through background plasma enable initial beam target experiments in warm dense matter to begin within the next two years. We are assessing how these new techniques might apply to heavy ion fusion drivers for inertial fusion energy. [Copyright &y& Elsevier]

The thermodynamic response of matter heated with intense ion beams was analyzed using the schlieren technique. The energy deposition zone and the propagation of the thermal wave were visualized in the experiment. Fused quartz has been chosen as a target to investigate the phenomena in a material with high yield point. The temperature in the ion beam heated region was estimated using the schlieren data and by analysis of the material changes after irradiation. [ABSTRACT FROM AUTHOR]

At the Physikalisch-Technische Bundesanstalt, an experiment for the direct measurement of the atomic mass unit is underway by accumulating ions from an ion beam up to a weighable mass. Until now, an intense bismuth ion beam of ≈ S mA can be extracted out of a cold or hot reflex discharge ion source (CHORDIS). Different arrangements of the beamline ensuring a high transmission will be discussed. Finally, suitable geometries of anion collector are shown based on SIMION-3D simulations. [ABSTRACT FROM AUTHOR]

We describe applications of the electrostatic plasma lens for manipulating and focusing moderate-energy, high-current, broad, heavy ion beams. Use of a plasma lens in this way has been successfully demonstrated in a series of experiments carried out collaboratively between the Institute of Physics, National Academy of Sciences, Kiev, Ukraine, and the Lawrence Berkeley National Laboratory, Berkeley, CA, in recent years. Mere, we briefly review the plasma lens fundamentals, peculiarities of focusing heavy ion beams, and summarize some recent developments (experiments, computer simulations, theory). We show that there is a very narrow range of low magnetic field for which the optical properties of the lens improve markedly. This opens up some attractive possibilities for the development of a new-generation compact lens based on permanent magnets. Preliminary experimental results obtained at Kiev and Berkeley on the operation of a permanent magnet plasma lens for manipulating wide aperture high-current heavy ion beams are presented and summarized. [ABSTRACT FROM AUTHOR]

Single-event upset effects from heavy ions are measured for Motorola and IBM silicon-on-insulator (Sol) microprocessors with different feature sizes and core voltages. Multiple-bit upsets in registers and D-cache were measured and compared with single-bit upsets. Also, the scaling of the cross section with reduction of feature size for SOI microprocessors is discussed. [ABSTRACT FROM AUTHOR]