Monte Carlo simulation of the LENA detector system

We first show that the full-energy peak and the total energy singles efficiency of our HPGe detector simulation agrees well with calibration data. We then present the full-energy peak and total energy efficiency for the NaI(Tl) annulus. Results are presented for our coincidence efficiencies, using three examples. These examples are a comparison to the decay of the 151 keV resonance in the 18O(p, γ)19F reaction, a 22Na point-like calibration source, and 26Al nuclei distributed in a meteorite fragment. In each case, we present a comparison of data to the simulation and show that, within our uncertainties, we can accurately simulate our measured intensities.