Electron-Ion Collision Studies at the ESR Electron Cooler with a Stochastically Cooled Ion Beam ESR electron cooler At the ESR, in addition to electron cooling the ion beam can also be cooled be means [...] cooling at a fixed ion energy of about 400 MeV/u. This alternative cooling technique allows cooling and measurement to be decoupled from one another. For electron-ion collision studies the ion beam is cooled [...] outstanding capabilities: Collision energies of 200 keV in the center-of-mass frame. Virtually no ion beam loss due to the cooling process. An experimental duty cycle close to one, since no intermittent

experiments at Z6: Interaction of heavy ions with laser driven plasma Ø energy loss of projectile ions in ideal / non-ideal plasma Ø charge state distribution of ions penetrating plasma Ø charge exchange [...] exchange processes in ionized matter Ø probing of plasma properties by energy loss of heavy ions Various plasma heating schemes Direct heating high Te highly ionized strong gradients Hohlraum heating moderate [...] Charge exchange by free electrons Recent results: Energy loss and charge state distribution of Ar ions at 4 MeV/u penetrating a laser generated Carbon plasma Projectile: 36 Ar Target: laser heated Carbon

High Field Physics in Combination of Relativistic Heavy Ions and Lasers With the extremely short, relativistic enhanced field pulses produced by ions at relativistic energies, the critical field limit (Schwinger [...] magnitudes in heavy ion collision. The detection methods of reaction microscopes will give the momentum of all fragments when atoms or molecules are disintegrating in strong field pulses of the ions down to low [...] laser photons [1] to the X-ray regime, or coherent radiation by channeling of relativistic ions, or electron-ion recombination, or electron and photon spectroscopy that will give hitherto unreachable accuracies

SPARC: Slow Ion / Surface Experiments 2006/03/27: The Low-Energy Cave (pdf-File) 2004/11/26: Minutes of the meeting of the Working Group - 30/10/04 2004/11/26: Minutes of the meeting of the Working Group

Heavy-Ion-Synchrotron SIS100 Structure of Working Packages in the Subproject Division SIS100 Work Package Name Responsible Responsible Deputy SIS100 System Design Dr. D. Ondreka Dr. N. Pyka SIS100 Machine

SPARC: Ion Sources

spherical target volumes and a single pin (upper left) Carbon-Ion FLASH (GSI) The GSI synchrotron enables a particularly high beam intensity (≥ 5×109 ions/spill), which is significantly higher than most other [...] [3] Weber et al, FLASH radiotherapy with carbon ion beams, Med. Phys. 2021 doi:10.1002/mp.15135 [4] Tinganelli et al, Ultra-High Dose Rate (FLASH) Carbon Ion Irradiation: Dosimetry and First Cell Experiments [...] Proton and Carbon-ion FLASH Figure: FLASH vs Conventional irradiation with electron beams [figure from reference [1]] FLASH radiotherapy is considered a new potential breakthrough in cancer treatment.

Measurements of Helium cross-sections for Helium-ion therapy There is increasing interest in using helium ions for radiotherapy, complementary to protons and carbon ions. First patients have been already treated [...] treated. A large number of patients were treated with 4He ions in the US heavy-ion-therapy project, and novel 4He-ion treatment programs are under preparation, for instance in Germany and Japan. Therefore, [...] 4He ions colliding with 12C target nuclei [figure from F Horst [1]] Schematic (left) and photo (right) of the experimental setup used at HIT to measure nuclear reaction cross sections for 4He ions impinging

compensator [figure from https ://newscenter.lbl.gov/2010/10/18/ion-beam-therapy / ] 3: The ion-beam therapy (at that time rather called ‘heavy-ion therapy’) and beam-scanning pilot project at GSI, Cave M ( [...] _an_overview/ion_beam_radiotherapy_in_the_fight_against_cancer ] 4: The Heidelberg ion-beam therapy facility (since 2009), in the gantry treatment room (the world first 360° rotatable ion-beam line with [...] Photons are most commonly used, but also proton or ion-beam (typically 12C) radiotherapy is growing in popularity [1]. Even if proton and 12 C - ion therapy are technically complex compared to the standard

for ions. The trapped particle performs a characteristic circular motion in the trap that depends on its mass — heavy particles oscillate more slowly than light ones. If two different, single ions are [...] at GSI. With aid of the HITRAP ion trap setup, which is part of FAIR’s APPA experiment pillar, it is planned to determine the binding energies of electrons in heavy ions with different charge states to [...] determined exactly. To perform the helium measurement, the scientists used the so-called LIONTRAP (Light-Ion Trap), located at the University of Mainz and developed and built within a collaboration of the Max