Comparison of two analysis methods for nuclear reaction measurements of 12 C + 12 C interactions at 95 MeV/u for hadrontherapy

Abstract During therapeutic treatment with heavier ions like carbon, the beam undergoes nuclear fragmentation and secondary light charged particles, in particular protons and alpha particles, are produced. To estimate the dose deposited into the tumors and the surrounding healthy tissues, the accuracy must be higher than ±3% and±1 mm. Therefore, measurements are performed to determine the double differential cross-section for different reactions. In this paper, the analysis of data from 12 C + 12 C reactions at 95 MeV/ u are presented. The emitted particles are detected with Δ E thin − Δ E thick − E telescopes made of a stack of two silicon detectors and a CsI crystal. Two different methods are used to identify the particles. One is based on graphical cuts onto the Δ E − E maps, the second is based on the so-called KaliVeda method using a functional description of Δ E versus E . The results of the two methods will be presented in this paper as well as the comparison between both.