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High spatial resolution microdosimetry with ΔE-E detector on C-12 beam: Monte Carlo simulations

Conference Paper


Abstract


  • The response of ΔE-E telescope in C12 ion beam at defined positions within the Bragg peak at different depths with 0.5mm step was studied using Geant4 Monte Carlo toolkit. The microdosimetric spectra derived from ΔE stage response using assumption that average chord is 1.8 μm along with simulated scatter plots for the same points. It was demonstrated that microdosimetric spectra is changing dramatically within 0.5 mm depth increments close to and at distal part of the BP that is impossible to observe with TEPC. Fragments (He4, He3, Li7, Be9, B11) and neutrons contributed to microdosimetric spectra and to YD have been analyzed for each position.

Publication Date


  • 2013

Citation


  • Tran, L. T., Bolst, D., Guatelli, S., Prokopovich, D. A., Keat, Y. C., Petasecca, M., Lerch, M. L. F., Reinhard, M. I., Fazzi, A., Sagia, E., Agosteo, S., Matsufuji, N. & Rosenfeld, A. B. (2013). High spatial resolution microdosimetry with ΔE-E detector on C-12 beam: Monte Carlo simulations. IEEE Nuclear Science Symposium and Medical Imaging Conference (pp. 1-4). United States: IEEE.

Scopus Eid


  • 2-s2.0-84904214459

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/2836

Start Page


  • 1

End Page


  • 4

Place Of Publication


  • United States

Abstract


  • The response of ΔE-E telescope in C12 ion beam at defined positions within the Bragg peak at different depths with 0.5mm step was studied using Geant4 Monte Carlo toolkit. The microdosimetric spectra derived from ΔE stage response using assumption that average chord is 1.8 μm along with simulated scatter plots for the same points. It was demonstrated that microdosimetric spectra is changing dramatically within 0.5 mm depth increments close to and at distal part of the BP that is impossible to observe with TEPC. Fragments (He4, He3, Li7, Be9, B11) and neutrons contributed to microdosimetric spectra and to YD have been analyzed for each position.

Publication Date


  • 2013

Citation


  • Tran, L. T., Bolst, D., Guatelli, S., Prokopovich, D. A., Keat, Y. C., Petasecca, M., Lerch, M. L. F., Reinhard, M. I., Fazzi, A., Sagia, E., Agosteo, S., Matsufuji, N. & Rosenfeld, A. B. (2013). High spatial resolution microdosimetry with ΔE-E detector on C-12 beam: Monte Carlo simulations. IEEE Nuclear Science Symposium and Medical Imaging Conference (pp. 1-4). United States: IEEE.

Scopus Eid


  • 2-s2.0-84904214459

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/2836

Start Page


  • 1

End Page


  • 4

Place Of Publication


  • United States