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Münster 2011 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 68: Astroteilchenphysik IV

HK 68.4: Talk

Friday, March 25, 2011, 14:45–15:00, HS3

Neodymium Activation Analysis for the SNO+ Experiment — •Philipp Schrock1, Belina von Krosigk1, Felix Krüger1, Ondřej Lebeda2, Valentina Lozza1, Jan Štursa2, and Kai Zuber11TU Dresden, IKTP, D-01069 Dresden — 2Academy of Sciences of the Czech Republic, NPI, CZ-25068 Husinec-Řež

The SNO+ (Sudbury Neutrino Observatory Plus Scintillator) experiment, located 6000 m.w.e. underground, is planning to search for the neutrinoless double beta decay of 150Nd. The expected half-life is of the order of 1025 years which requires extremely low background levels.

At TU Dresden the production of long-living isotopes by cosmic ray exposure of Neodymium on the Earth’s surface is studied. These produced isotopes can be a source of background radiation during the measurement phase of SNO+ and need to be well-known. Most of the cross-sections have not been measured, yet.

We performed a Neodymium proton irradiation experiment at Řež near Prague (Czech Republic) to measure production cross sections of various radioisotopes. The experimental procedure is described briefly and first results for the excitation functions are presented.

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