Comparison of the GEANT4 releases 8.2 and 9.2 in terms of a pCT reduced calibration curve

Author

Yevseyeva, O. ; de Assis, J.T. ; Milhoretto, E. ; Evseev, I.G. ; Schelin, H.R. ; Ahmann, F. ; Paschuk, S.A. ; Setti, J.A.P. ; Denyak, V. ; Diaz, K.S. ; Hormaza, J.M. ; Lopes, R.T.

Author_Institution

Polytech. Inst., Rio de Janeiro State Univ., Nova Friburgo, Brazil

fYear

2010

fDate

Oct. 30 2010-Nov. 6 2010

Firstpage

2413

Lastpage

2417

Abstract

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.

Keywords

Monte Carlo methods; calibration; emission tomography; proton beams; GEANT4 Releases 8.2; GEANT4 Releases 9.2; MCNPX; Monte Carlo codes; NIST PSTAR; SRIM; TRIM/SRIM; medical tomography; pCT reduced calibration curve; proton beam tomography;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record (NSS/MIC), 2010 IEEE

Conference_Location

Knoxville, TN

ISSN

1095-7863

Print_ISBN

978-1-4244-9106-3

Type

conf

DOI

10.1109/NSSMIC.2010.5874220

Filename

5874220