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Efficiency optimization of a HPGe clover array for implantation decay experiments at FRIB
Grover, Hannah N.
Grover, Hannah N.
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2018
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The Facility for Rare Isotope Beams is a new state-of-the-art facility being built at Michigan State University in order to better understand the the fundamental building blocks of the universe. The decay station group hopes to combine a clover style gamma ray detector array with a small, planar HPGe detector to study some of the most exotic nuclei. This project focused on ensuring that this combination would maintain or improve the photon efficiency of a clover style array on its own, as well as optimizing the size of the planar HPGe detectors in the center of the array configuration. The results from simulations done in Geant4 show that the efficiency of this combination of detectors is higher than just a clover array, and even significantly high for low energy gamma rays. In addition, the optimum radius of the planar HPGe detectors is 3.5 cm when considering both the cost and efficiency for the total configuration.
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