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A new dedicated β-NMR/β-NQR setup for LISE-GANIL

Abstract : A new β-NMR/β-NQR setup is developed to study nuclear magnetic dipole moments and electric quadrupole moments at the LISE fragment separator at GANIL. Two key elements make the new design very powerful: the homogeneous magnet and the strong radio-frequency amplifier. The combination of both makes it possible to examine a broad spectrum of magnetic dipole and electric quadrupole moments. Several factors have an influence on the detection efficiency and on the sensitivity of the setup to observe a resonant change in the β-asymmetry: the thickness and the tilting angle of the implantation crystal, the material in the vacuum chamber, the applied magnetic field and the Qβ-value of the decaying nuclei. A detailed study of these effects is made using a dedicated GEANT4 Monte Carlo simulation code.
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Submitted on : Wednesday, October 14, 2009 - 9:03:14 AM
Last modification on : Thursday, February 21, 2019 - 10:31:45 AM
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M. de Rydt, R. Lozeva, N. Vermeulen, F. de Oliveira Santos, S. Grévy, et al.. A new dedicated β-NMR/β-NQR setup for LISE-GANIL. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Elsevier, 2009, 612, pp.112-121. ⟨10.1016/j.nima.2009.09.125⟩. ⟨in2p3-00423654⟩

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