NuSOFT EffTrace

The NuSOFT EffTrace software is intended to be used for fast and accurate estimation of efficiency calibrations for arbitrary measured objects with gamma spectrometric detectors (both for scintillation and semiconductor HPGe). The calculation is based on analytical approach with calculation of solid angle between elementary source volume and the detector, corrected by attenuation effects of the source itself and all other entities in the 3D modelled geometry. For correct absorption effect in the detector, the efficiencies for various distances, angles and gamma energies have to be entered by user. This allows to use NuSOFT EffTrace with arbitrary detector. For collimators, the SW offers built-in Monte Carlo method, which can automatically estimate the effect of collimator for given detector without need to measure such effect experimentally.