Trabalho apresentado em evento
Comparison of the GEANT4 releases 8.2 and 9.2 in terms of a pCT reduced calibration curve
Fecha
2010-12-01Registro en:
IEEE Nuclear Science Symposium Conference Record, p. 2413-2417.
1095-7863
10.1109/NSSMIC.2010.5874220
2-s2.0-79960340142
8949540199759267
Autor
Rio de Janeiro State University
Federal University of Technology Paraná
Pelé Pequeno Príncipe Research Institute
CEADEN
Universidade Estadual Paulista (Unesp)
Universidade Federal do Rio de Janeiro (UFRJ)
Resumen
The GEANT4 simulations are essential for the development of medical tomography with proton beams pCT. In the case of thin absorbers the latest releases of GEANT4 generate very similar final spectra which agree well with the results of other popular Monte Carlo codes like TRIM/SRIM, or MCNPX. For thick absorbers, however, the disagreements became evident. In a part, these disagreements are due to the known contradictions in the NIST PSTAR and SRIM reference data. Therefore, it is interesting to compare the GEANT4 results with each other, with experiment, and with diverse code results in a reduced form, which is free from this kind of doubts. In this work such comparison is done within the Reduced Calibration Curve concept elaborated for the proton beam tomography. © 2010 IEEE.