Be/C (top left panel), Be/O (top right panel), and Be/B (bottom left panel) ratios (red solid line) compared to the data of AMS02 (Aguilar et al. 2018, 2021d, black dots). The green shaded region corresponds to a 20% uncertainty in the secondary production cross section. The solid blue line corresponds to the Be/C, Be/O, or Be/B ratio when the Be flux is multiplied by f_Be = 0.9 and the B flux by f_B = 1.9, as in Fig. 7. The ¹⁰Be/⁹Be ratio (bottom right panel) is compared to the preliminary AMS02 data (black dots) and to the data of a variety of other experiments, collected from the Cosmic-Ray Database (Maurin et al. 2023). The solid red line corresponds to a GH size of H = 4 kpc. The yellow, green, and pink shaded regions corresponds to a 10%, 20%, and 30% uncertainty in the production cross section, respectively. The solid cyan and purple lines correspond to H = 6 kpc and H = 8 kpc, respectively.