Lilianna Hariasz
(Queen's University)
Zinc-65 ($^{65}$Zn) is a radionuclide of interest in the fields of medicine and gamma-ray spectroscopy, within which its continued use as a tracer and common calibration source necessitates increasingly-precise nuclear decay data. A $^{65}$Zn dataset was obtained as part of the KDK ("potassium decay") experiment, whose apparatus consists of an inner X-ray detector and an efficient outer detector, the Modular Total Absorption Spectrometer (MTAS), to tag gamma rays. This setup allows for the discrimination of the electron-capture decays of Zn-65 to the ground (EC) and excited (EC) states of Copper-65 using a novel technique for such a measurement, exploiting the high efficiency ($>$98%) of MTAS. Techniques used to obtain the ratio of EC to EC decays ($\equiv\rho$) of $^{65}$Zn are applicable to the main KDK analysis, which is making the first measurement of $\rho$ for Potassium-40, a common background in rare-event searches such as those for dark matter. We present our current methodology and analysis procedures developed to obtain a neoteric measurement of the electron-capture decays of Zinc-65.
Lilianna Hariasz
(Queen's University)
Dr
Nathan Brewer
(Oak Ridge National Laboratory Physics Division, Oak Ridge, Tennessee, USA)
Mr
Heath Davis
(Department of Nuclear Engineering, University of Tennessee, Knoxville, Tennessee, USA)
Philippe Di Stefano
(Queen's University)
Aleksandra Fijałkowska
(Faculty of Physics, University of Warsaw, Warsaw, Poland)
Zheng Gai
(Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA)
Robert Grzywacz
(U)
Daniel Hamm
(Department of Nuclear Engineering, University of Tennessee, Knoxville, Tennessee, USA)
Peter Lechner
(MPG HLL)
Yuan Liu
(Oak Ridge National Laboratory)
Eric Lukosi
(University of Tennessee)
Michele Mancuso
(Max-Planck-Institut für Physik)
Jelena Ninkovic
(MPG Halbleiterlabor)
Federica Petricca
(Max-Planck-Institut für Physik)
Charlie Rasco
(Oak Ridge National Laboratory Physics Division, Oak Ridge, Tennessee, USA)
Christopher Rouleau
(Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA)
Krzysztof Rykaczewski
(Oak Ridge National Laboratory Physics Division, Oak Ridge, Tennessee, USA)
Daniel Stracener
(Oak Ridge National Laboratory Physics Division, Oak Ridge, Tennessee, USA)
Matthew Stukel
(Queen's University)
Marzena Wolinska-Cichocka
(Heavy Ion Laboratory, University of Warsaw, Warsaw, Poland)
itay Yavin
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