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| Program name | Package id | Status | Status date |
|---|---|---|---|
| PENGUIN | NEA-1910/01 | Tested | 31-MAR-2020 |
Machines used:
| Package ID | Orig. computer | Test computer |
|---|---|---|
| NEA-1910/01 | PC Windows | PC Windows |
PenGUIn is a Windows graphical user interface (GUI) for the Monte Carlo code system PENELOPE. It uses the generic main program PENMAIN to perform Monte Carlo simulation of coupled electron-photon transport in material structures consisting of homogeneous bodies limited by quadric surfaces. PENMAIN provides a detailed description of the transport process through a number of simulated distributions, which can be visualized by using the plotting software gnuplot (www.gnuplot.info) and the provided scripts. PenGUIn largely simplifies the use of PENELOPE-PENMAIN. The user can load input files or create them from scratch. The output files and plots of the results can be accessed directly from the interface. PenGUIn also has links to executables of the MATERIAL, TABLES, and SHOWER programs, as well as to the two- and three-dimensional geometry viewers.
The program can track electrons, positrons, and photons with kinetic energies ranging from 50 eV to 1 GeV. However, the adopted interaction models are not expected to be accurate for energies below about 1 keV. X-rays and Auger electrons originating from vacancies in the outer (O, P …) subshells of heavy elements are not followed. Photo-nuclear reactions are disregarded.
The running time largely depends on the number of histories to be simulated, the kind of incident particle, its initial energy and the considered geometry. The adopted simulation parameters (energy cut-offs, etc.) also influence the computing time. As an example, a broad-beam depth-dose distribution of 10 MeV electrons incident on a water phantom, resulting from 100.000 simulated histories, is obtained with a running time of some 180 s on an Intel Core i7/8550U CPU at 1.99 GHz with 16 GB RAM.
The mixed simulation algorithm for electrons and positrons implemented in PENELOPE reproduces the actual transport process to a high degree of accuracy and is very stable even at high energies. This is partly due to the use of a sophisticated transport mechanics model for charged particles based on the so-called random hinge method. Other differentiating features of the simulation are a consistent description of angular deflections in inelastic collisions and of energy-loss straggling in soft stopping events. Binding effects and Doppler broadening in Compton scattering are also taken into account.
The original PENELOPE code system (http://www.oecd-nea.org/tools/abstract/detail/nea-1525) and the graphical user interface PENGEOM (definition and debugging of quadric geometries) (http://www.oecd-nea.org/tools/abstract/detail/nea-1886/) are available separately.
J. Sempau, E. Acosta, J. Baro, J.M. Fernandez-Varea and F.Salvat:
An algorithm for Monte Carlo simulation of the coupled electron-photon transport. Nuclear Instruments and Methods B 132 (1997) 377-390.
J. Sempau, J.M. Fernandez-Varea, E. Acosta and F. Salvat:
Experimental benchmarks of the Monte Carlo code PENELOPE. Nuclear Instruments and Methods B 207 (2003) 107-123.
Francesc Salvat:
PENELOPE-2018 - A Code System for Monte Carlo Simulation of Electron and Photon Transport - Workshop Proceedings Barcelona, Spain 28 January – 1 February 2019 (NEA/MBDAV/R(2019)1 - ISSN 2707-2894 - July 2019)
| Package ID | Computer language |
|---|---|
| NEA-1910/01 | FORTRAN, VISUAL STUDIO |
Keywords: MCNP, graphical.
