Response of the FAst TIMing Array (FATIMA) for DESPEC at FAIR Phase-0

M. M.R. Chishti, S. Jazrawi, R. Shearman, P. H. Regan, Zs Podolyák, S. M. Collins, M. Górska, B. Cederwall, A. Yaneva, G. X. Zhang, J. Cederkall, A. Goasduff, H. M. Albers, S. Alhomaidhi, A. Banerjee, A. M. Bruce, G. Benzoni, B. Das, T. Davinson, L. M. FraileJ. Gerl, G. Häfner, J. Jolie, N. Hubbard, P. R. John, R. Lozeva, A. K. Mistry, B. S.Nara Singh, M. Mikolajczuk, M. Polettini, N. Pietralla, J. M. Regis, M. Rudigier, E. Sahin, A. Sharma, M. Si, J. Vesic, V. Werner

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Abstract

The Monte-Carlo simulated response for γ-ray detection of the FAst TIMing Array (FATIMA) for exploitation within the DEcay SPECtroscopy (DESPEC) experimental system at the FAIR Phase-0 facility at Darmstadt, Germany is presented. In this configuration, FATIMA consisted of 36 LaBr3(Ce) detectors surrounding the AIDA, position-sensitive charged-particle active stopper. The decay of the Iπ=8+ isomer-fed decay cascade in 96Pd, measured in the first DESPEC experiment at the FAIR-0 facility was used to validate the simulations. The experimental data yielded in-situ full-energy peak efficiency values for FATIMA of 11.2(11)%, 6.8(7)%, 3.8(4)% and 2.1(4)% at 106, 325, 684 and 1415 keV respectively, consistent with the values derived from the simulated response.

Bibliographical note

Publisher Copyright:
© 2023

Keywords

  • Gamma and charged particle detectors. Monte Carlo Simulations
  • Nuclear Instrumentation
  • Nuclear Spectroscopy

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