Münster 2017 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 61: Structure and Dynamics of Nuclei X

HK 61.7: Vortrag

Freitag, 31. März 2017, 15:30–15:45, F 33

Application of Calorimetric Low Temperature Detectors for the Investigation of Z-Yield Distributions of Fission Fragments — •Santwana Dubey1,2, Shawn Bishop5, Aurelien Blanc4, Johannes O. Denschlag2, Artur Echler1,2, Peter Egelhof1,2, Friedrich Goennenwein6, Jose Gomez4, Patrick Grabitz1,2, Ulli Koester5, Saskia Kraft-Bermuth3, Werner Lauterfeld2, Manfred Mutterer1, Pascal Scholz3, and Stefan Stolte21GSI, Germany — 2Univ. Mainz, Germany — 3Univ. Giessen, Germany — 4Technical Univ. Munich, Germany — 5ILL Grenoble, France — 6Univ. Tübingen, Germany

Precise fission fragment yield data are of great interest for a better understanding of the fission process. In a recent experiment, performed at the research reactor ILL Grenoble, Calorimetric Low Temperature Detectors (CLTDs) were applied for the first time for the investigation of Z-yield distributions of fission fragments. The concept of CLTDs, which is based on the collection of phonons, provides considerable advantage over conventional heavy ion detectors, based on charge collection, with respect to basic detector properties. Fission fragments, produced by thermal neutron induced fission of 235U, were passed through the LOHENGRIN separator to filter required mass and energy, followed by SiN degrader foils to separate elements with different Z within a mass, and were detected on an array of CLTDs. Preliminary data for the mass region 82<A<132 will be presented, which would lead to a better understanding of the fission process, as well as of reactor neutrino oscillations and the reactor neutrino anomaly.

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