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    ModeStEB

    The program ModeStEB was designed specially for MC simulation of industrial radiation processing and calculation of the 3D absorbed dose distribution within products irradiated by stationary or scanned electron beams on industrial radiation facility that is based on the pulsed or continuous type of electron accelerators in the energy range from 0.1 to 50 MeV. Irradiated product is represented in form of stack of plates.  The stack of plates can be interleaved with dosimetric films.

    Developed software can be used for the following problem tasks in radiation processing:

    1. Determination of dependence of an absorbed dose distribution in a layer as function of:

      • density and a chemical composition of layer material; 
      • width and thickness of a layer;
      • geometrical arrangement of a layer in a stack;
      • density and a chemical composition of a stack layer materials;
      • geometrical sizes of a stack; 
      • orientation angle of a stack relatively to incident electron beam.
       
    2. Examination of dependence of an absorbed dose distribution in a layer as function of:

      • energy of incident EB;
      • EB current and speed of  a conveyer motion; 
      • angular distribution of electrons in a beam;
      • spatial distribution of electrons in a beam; 
      • width of EB scanning; 
      • angular characteristics of  a scan process; 
      • time sweep of the scanner; 
      • air gap between the scanner and an irradiated target.

    3. The comparative analysis of visual and numerical difference of 3D depth-dose distributions in a layer for:

      • various parameters of calculation;
      • various calculation models; 
      • experimental and calculated depth-dose distributions in a layer.

    4. Prediction and interpretation of measurement results in film dosimetry:

      • simulation by a Monte Carlo method of a dose profile in dosimetric films located in objects with heterogeneous structure and  irradiated with scanned electron beams;
      • treatment of measurement results of an electron beam dose profile in dosimetric films and their comparative analysis;
      • interpretation of measurement results of an electron beam dose profile in dosimetric films on the base of comparative analysis with simulation results;
      • refinements of parameters and operation regimes for radiation installation (EB Irradiator) on the base of comparative analysis of measurement results of an electron beam dose profile in dosimetric films with simulation results.

    5. The features of the software ModeStEB are as follows:

      • two levels for entering of input data via configuration files and manually;
      • built-in tools for statistical analysis;
      • built-in tools for uncertainties estimation of results simulation due to uncertainties of input data for radiation facility;  
      • built-in tools for dose volume histogram (DVH) analysis;
      • estimation of uncertainties for physical models;
      • comparison Modulus for visual and a numerical analysis of calculated and experimental data and for decision of optimization tasks in radiation processing; 
      • built-in tools for processing of experimental dosimetric data and their comparison with simulation predictions.

    6. The software have intuitively clear graphical interface for the end-users with the following features:

      • detailed decomposition of input data for main elements of source and target (including spectral characteristics for irradiation source);
      • two levels for entering of input data via configuration files and manually;
      • expert control for the range of input data and co-ordination  for the set of geometrical and physical input data;
      • compatibility of export an input data to different modules.

    The software ModeStEB works on platform Windows98/Me/NT/XP/2000. Language of the interface - English.

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