Gaussian smearing of the detector spectrum obtained from Monte Carlo simulation in FLUKA

Monte Carlo code FLUKA is used in the radiation detection applications to simulate the response of Phoswich, an array of HPGe detectors as well as various other detection systems for different photon energies using voxel phantoms such as ICRP adult male and female, knee and skull as well as BOMAB phantom etc. 'DETECT' card of FLUKA which is used to estimate energy deposited in the detector, gives output in 1024 channels for the selected energy region and step size without smearing. Therefore, there is a need to modify it depending upon the channels required in the detector spectrum for comparison with experimental spectrum as well as by Gaussian smearing, considering the resolution of the respective detector. It is now possible to generate the smeared spectrum for any detector output of FLUKA by knowing its variation of resolution with energy