During the day on GPS, offline PAC experiments were carried out using ¹¹¹ᵐCd implanted at GLM. The aim was to investigate the structure of several solid state materials, for example Bismuth Ferrite and various perovskites, the latter being relevant for solar cell applications. On the first day the isomer to ground state ratio was slightly too low, but this was resolved on the following days. The experiment was restricted to daytime operation only, because RP needed to be present for the manipulation of implanted samples, a precaution introduced after incidents earlier this year during another beam time. This went very smoothly, both from safety and experiment point of view, and the experimental teams went home with a bunch a good data.
On HRS, the in source laser spectroscopy run on Ni was completed. The campaign was challenging overall, but in the end the team succeeded in collecting several good new data sets, both for decay spectroscopy and for in source spectroscopy. The final weekend focused on bismuth isotopes for IDS and ISOLTRAP, beginning with in source laser spectroscopy and later moving to precise decay spectroscopy, which is of interest for medical applications involving ²²⁵Ac. After the proton beam stopped, the team continued for one additional shift on ²⁰⁹Tl. This was made possible thanks to a last minute, but very appreciated, change in RILIS, without which these final measurements would not have been possible. Despite several difficulties, the team still managed to obtain good data.