Regensburg 2019 – scientific programme

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MM: Fachverband Metall- und Materialphysik

MM 37: Topical session (Symposium MM): Big Data Analytics in Materials Science

MM 37.5: Talk

Thursday, April 4, 2019, 16:15–16:30, H43

The speech of strangers in material science — •Juliana Schell^1,2, Peter Schaaf³, Hans-Christian Hofsäss⁴, and Doru C. Lupascu² — ¹European Organization for Nuclear Research (CERN), CH-1211 Geneva, Switzerland — ²University of Duisburg-Essen, 45141 Essen, Germany — ³TU Ilmenau, Gustav-Kirchhoff-Straße 5, 98693 Ilmenau, Germany — ⁴Georg-August-Universität Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany

Differently from stable nuclei, radioactive isotopes like to talk about their local environment. Human vocal communication produces sound, radioactive isotopes emit particles and photons and can act as a probe once decaying embedded in a host material. Some of them emit two consecutive gamma rays and it is convenient to find the relative probability of detecting the second photon and obtain its angular correlation in respect to the first. Humans perform many different speech acts that vary according to their intention, while the precession of the angular correlation in time can vary with the magnetic dipole and the electric quadrupole interactions. During the past four decades, the solid-state physics programme at ISOLDE-CERN has interpreted the speech of these strangers with innovative material science research and optimized equipment. This presentation overviews the newest perturbed angular correlation results and measurement possibilities at ISOLDE-CERN [1].

[1] Juliana Schell, Peter Schaaf, and Doru C. Lupascu, Perturbed Angular Correlations at ISOLDE: a 40 years young technique, AIP Advances 7, 105017 (2017).