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KFM: Fachverband Kristalline Festkörper und deren Mikrostruktur

KFM 6: Instrumentation and Methods for Micro- and Nanoanalysis

KFM 6.4: Talk

Monday, March 18, 2024, 11:40–12:00, TC 010

Emission Mössbauer Spectrometer from ILmenau (eMIL): An Update — Alice Kern¹, Juliana Schell^2,3, •Ian Chang Jie Yap³, Thien Thanh Dang³, Magnus Hegelund⁴, Dmitry Zyabkin⁵, and Peter Schaaf⁵ — ¹Fakultät für Festkörperelektronik, Technische Universität Wien, AT-1040, Wien — ²European Organization for Nuclear Research (CERN), CH-1211, Geneva — ³Institute for Materials Science and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg- Essen, 45141 Essen, Germany — ⁴Institute of Material Science and Production, University of Aalborg, 9220 Aalborg, Denmark — ⁵Fakultät für Chemie, Technische Universität Ilmenau, 98693 Ilmenau, Germany

The advanced emission Mössbauer spectrometer, eMIL (Emission Mössbauer from Ilmenau) was built for the emission Mössbauer (eMS) collaboration at ISOLDE/CERN. The set-up is based on the emission geometry and combines on-line and off-line isotope implantation used to measure hyper-fine interactions in condensed matter materials. Using radioactive Mössbauer probes that are ion-implanted into the sample, eMIL has multiple advantages over the more common transmission or electron conversion setups. The versatility of the set-up is epitomized through five different lids: rotation, magnetic, powder, hot and cold lid. These lids can be easily interchanged, without the need for re-alignment, which makes eMIL extremely flexible during beam time. eMIL had its first successful run this year, which marked the first beam time for the Mössbauer collaboration since 2018.

Keywords: Ion implantation; Radioactivity; Mössbauer spectroscopy; Hyperfine interactions; Material Science