ABSTRACT
The KURBUC code system is a suite of Monte Carlo track structure codes for the simulation of tracks of full slowing down tracks of ions and electrons in water. The low-energy proton code Kurbuc_proton is effective in the energy range between 1 keVu-1 and 1 MeVu-1 (Uehara et al. 2001). The proton code has been extended to the high-energy range up to 200 MeVu-1 (Nikjoo et al. 2008). Recently, Liamsuwan et al. (2011) improved this code to cover up to 300 MeVu-1. The low-energy α-particle code Kurbuc_alpha encompasses the energy range between 1 keVu-1 and 2 MeV u-1 (Uehara and Nikjoo 2002). The tracks of secondary electrons were generated using the electron track code Kurbuc_electron (Uehara et al. 1993). The codes can be operated to generate tracks in both the track segment and the full slowing down modes. Figure 18.1 shows (a) the ±owchart of the main routine for the proton code, and (b) that of the subroutine for the secondary electrons.
