Figure 4
From: Robustness of large-area suspended graphene under interaction with intense laser
High contrast best focus shots: reproducibility. Three successive nominally identical shots with 8-layer LSG: (a) the same shot as in Fig. 3c, 19.3 J, 4.83 \(\times 10^{21}\) W cm\(^{-2}\), \(a_0 = 47.9\), (b) 18.2 J, 4.55 \(\times 10^{21}\) W cm\(^{-2}\), \(a_0=46.6\), and (c) 19.2 J, \(4.81 \times 10^{21}\) W cm\(^{-2}\), \(a_0=47.8\). The ion pits on CR-39 in stack detector: (d) the proton pits on the second CR-39 with the aluminum foil and two RCFs, corresponding to the energy of 12.2–13.2 MeV, and (e) the carbon pits on the first CR-39 covered with a 12 \(\upmu\)m aluminum foil with the energy range between 14 and 94 MeV.
