Mainz 2026 – scientific programme
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MO: Fachverband Molekülphysik
MO 17: Poster – Interaction with VUV and X-ray Light (joint session A/MO)
MO 17.3: Poster
Wednesday, March 4, 2026, 17:00–19:00, Philo 1. OG
Microcrystalline and thin layers for precision spectroscopy — •Simon B. Diewald1, Jonas Stricker1,2, Dennis Renisch1,2, and Christoph E. Düllmann1,2,3 — 1JGU Mainz, Deutschland — 2HI Mainz, Deutschland — 3GSI Darmstadt, Deutschland
232ThF4 is a promising host material for high-precision spectroscopy experiments related to the realization of a solid-state nuclear clock based on the 229mTh isomer. We present a compact method for producing thin and microcrystalline 232ThF4 layers on silicon, CaF2, MgF2, and stainless-steel substrates via thermal evaporation in an ohmic furnace. The produced layers were characterized regarding their homogeneity and provide samples suitable for future high-precision vacuum-ultraviolet spectroscopy. The method provides homogeneous samples suitable for various high-precision spectroscopy and nuclear-physics applications.
Keywords: Thinlayers; Thermal evaporation; Thoriumfluoride