Zero degree measurements of 12C fragmentation at 95 MeV/nucleon on thin targets

Abstract : During therapeutic treatments using ions such as carbon, nuclear interactions between the incident ions and nuclei present in organic tissues may occur, leading to the attenuation of the incident beam intensity and to the production of secondary light charged particles. As the biological dose deposited in the tumor and the surrounding healthy tissues depends on the beam composition, an accurate knowledge of the fragmentation processes is thus essential. In particular, the nuclear interaction models have to be validated using experimental double differential cross sections which are still very scarce. An experiment was realized in 2011 at GANIL to obtain these cross sections for a 95 MeV/nucleon carbon beam on different thin targets for angles raging from 4 to 43{\deg} . In order to complete these data, a new experiment was performed on September 2013 at GANIL to measure the fragmentation cross section at zero degree for a 95 MeV/nucleon carbon beam on thin targets. In this work, the experimental setup will be described, the analysis method detailed and the results presented.
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Submitted on : Wednesday, July 2, 2014 - 8:56:36 AM
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J. Dudouet, M. Labalme, D. Cussol, C. Finck, R. Rescigno, et al.. Zero degree measurements of 12C fragmentation at 95 MeV/nucleon on thin targets. Physical Review C, American Physical Society, 2014, 89, pp.064615. ⟨10.1103/PhysRevC.89.064615⟩. ⟨in2p3-01017198⟩



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