SPARC-Call for Proposals for beamtime in 2023/2024

We propose to measure x-ray fluorescence following charge exchange between bare Xe$^{54+}$ ions and different gas targets at ultra-low collision energies at HITRAP. By detecting fluorescence in coinicidence with projectile ions, and recording ion time-of-flight, reaction channels can be separated. This will provide charge-exchange data for an energy regime inaccesible in storage ring setups,...

Re: E130 ‘Cooling and precision spectroscopy of 209Bi82+ ion ensembles with the ARTEMIS and SPECTRAP experiments at the HITRAP facility’
The beamtime proposal E130 for HITRAP has been approved by the GPAC with ranking A a couple of years ago. In the years 2018 to 2021 it was not possible to take the approved beamtime of 30 shifts. Presently, from May 17th to 28th 2022, the HITRAP...

Upon impact on a surface, slow highly charged ions (HCIs) deposit large amounts of their potential energy within the first few monolayers of the material. Depending on material properties relaxation processes can lead to nanosized material modifications, e.g. hillocks and craters in bulk samples or pores in 2D materials - often in a similar manner as after swift heavy ion (SHI) impact. For...