Abstract
35 The Monte-Carlo simulated response for γ-ray detection of the FAst TIMing 36 Array (FATIMA) for exploitation within the the DEcay SPECtroscopy (DE-37 SPEC) experimental system at the FAIR Phase-0 facility at Darmstadt, Ger-38 many is presented. In this configuration, FATIMA consisted of 36 LaBr 3 (Ce) 39 detectors surrounding the AIDA, position sensitive charged-particle active stop-40 per. The decay of the I π =8 + isomer-fed decay cascade in 96 Pd, measured in 41 the first DESPEC experiment at the FAIR-0 facility was used to validate the 42 simulations. The experimental data yielded in-situ full-energy peak efficiency 43 values for FATIMA of 11.2(11)%, 6.8(7)%, 3.8(4)% and 2.1(4)% at 106, 325, 684 44 and 1415 keV respectively, consistent with the values derived from the simulated 45 response. 46