compound scandium dioxide This resonance requires X-rays with an energy of 12.4 kiloelectronvolts (keV, which is about 10,000 times the energy of visible light) and has a width of only 1.4 femtoelectronvolts [...] important for the construction of atomic clocks is the exact knowledge of the resonance energy – in other words, the energy of the X-ray laser radiation at which the resonance occurs. Sophisticated extreme noise [...] transition energy marks a significant progress,” emphasizes the head of the data analysis, Jörg Evers of the Max Planck Institute for Nuclear Physics in Heidelberg. “The exact knowledge of this energy is of

Atomic Energy Agency (IAEA) International Commission on Radiological Protection (ICRP) United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) Multidisciplinary European Low Dose

repeatedly interact with the target electrons thus allowing investigations of low-intensity projectiles and/or of processes with low cross sections to be carried out. In addition, the storage ring environment [...] between free target electrons and stored ions. Precision spectroscopy and lifetime studies utilizing energy-sharp resonant features in the electron-ion cross section (‘collisions spectroscopy’). More details

taking place in the extraction system of an ECR ion source has been extended. Electrons with arbitrary energy can now be used in the simulation to compensate the positive space charge of the ions close to the [...] plasma boundary. The thickness of the resulting plasma boundary will increase if electrons with energies in the order of several 10 eV to several 100 eV are present. This effect seems to decrease the emittance [...] on the space charge this drop can be as high as several 100 Volts. This is a multiple of the ion energy within the plasma. That is why the plasma electrode should be placed at a location with a homogeneous

here revealing plasma parameters, the long term behaviour of beam current, transmission along the low energy beam transport section, lifetime and availability of the ion source. more... Author: R. Hollinger

galvanically, forming 28 energy-sensitive segments. The direction of the escaping α particle or fission fragment can be roughly retraced. The energy resolution obtained by summing the energy-loss signal from the [...] of super heavy elements via the "cold fusion process" at SHIP Pb and Bi targets are employed. Their low melting points are one of the major bottlenecks of the production of SHE limiting the maximum beam [...] front of and behind the target is installed carrying away the heat radiation from the targets. The low cross section regime (<1pb = 1 SHE event/10days) for the synthesis of SHE requires even higher beam

triplets or doublets are used as a unit, i.e., all quadrupoles within a multiplet act together. For low energy beams, which generally mean those directly from the SIS-18, some quadrupoles may be switched off

with a capacity of 2 mF is charged to approx. 14 kV. The stored energy is in the range of 200 kJ. This roughly corresponds to the kinetic energy of a car (~ 1400 kg) at 60 km/h. The capacitor bank is discharged [...] magnetic horn is a system for focusing antiprotons. Antiprotons are produced by shooting a proton beam (energy in our case ~29 GeV) onto a target. In this way, antiprotons are produced. These leave the target [...] ng GmbH This process is not particularly efficient, meaning the number of produced antiprotons is low. To direct all (or as many as possible) of the antiprotons to the experiment, the divergent beams must

through a 300 keV/u RFQ accelerator to the ring. The ion beam energy can be ramped up to maximum rigidity or ramped down to the low-energy limit. The beam lifetime is limited only by the prevailing vacuum [...] © J. Hosan / GSI Helmholtzzentrum GmbH CRYRING@ESR CRYRING@ESR is low-energy storage ring for heavy ions and is integrated into the GSI accelerator complex and the smallest of the storage rings here. All [...] (– 0.8 Tm for protons/antiprotons) Maximum energy for p, pbar 30 MeV - for 12 C 6+ 24.7 MeV/u - for 238 U 92+ ( 238 U 89+ ) 14.8 MeV/u (13.9 MeV/u) Lowest energy Charge exchange limited Magnet ramping (de-

Ion Collisions S. Hagmann, GSI pdf (247 kB) Photoionization Studies for H-like High-Z Ions at Low Energies Th. Stöhlker, GSI pdf (127 kB) Double Ionization in Strong Laser Fields Th. Weber, Uni Frankfurt [...] between low charged heavy ions V.P. Shevelko, GSI pdf (510 kB), zip (508 kB) Vacuum-Assisted Photoionization D. C. Ionescu, GSI pdf (318 kB) Ionization of High-Z Prohectiles at Relativistic Energies <= 1000 [...] of Atoms in Intense Femto and Attosecond Fields R. Moshammer, Uni Freiburg pdf (101 kB) Kinetic energy release in N 2 fragmentation by swift highly charged ions B. Siegmann, Uni Bielefeld pdf (84 kB)