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The cloister church of Riesa (Saxony, Germany) contains two burial crypts which were used from the 17th to 19th century AD by local noble families, namely the barons von Felgenhauer, Hanisch/von Odeleben and von Welck. The crypt beneath the altar originally contained 50 inhumations of which about 30 are still preserved at present, either as coffins and/or mummies, while the northern crypt contained...
Quantum tunneling time is a highly debated topic — we explain why. We discuss the attoclock technique to extracting tunneling delays with regards to the typical approximations such as the dipole approximation, non-adiabatic effects, photoelectron momenta at the tunnel exit, electron correlation and exit coordinate.
The performance of the compact ETH–TANDY system for accelerator mass spectrometry measurements of 236 U is presented. Despite the low ion energies of around 1.2MeV we can demonstrate a background level that is comparable to larger facilities. The careful ion-optical design of the high-energy spectrometer leads to a high suppression of neighboring isotopes sufficient to measure samples with...
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