| Quantity | Value | Units | Value | Units |
| <Z/A> | 0.40323 | |||
| Density | 9.53 | g cm-3 | ||
| Minimum ionization | 1.155 | MeV g-1cm2 | 11.01 | MeV cm-1 |
| Nuclear collision length | 107.4 | g cm-2 | 11.27 | cm |
| Nuclear interaction length | 183.7 | g cm-2 | 19.27 | cm |
| Pion collision length | 132.1 | g cm-2 | 13.86 | cm |
| Pion interaction length | 213.1 | g cm-2 | 22.36 | cm |
| Radiation length | 6.76 | g cm-2 | 0.7098 | cm |
| Critical energy | 8.15 | MeV (for e-) | 7.85 | MeV (for e+) |
| Molière radius | 17.61 | g cm-2 | 1.848 | cm |
Plasma energy ![]() |
56.49 | eV | ||
| Muon critical energy | 152. | GeV |
| Elem | Z | Atomic frac* | Mass frac* |
| 8 | |||
| 82 | |||
| * calculated from mass fraction data. | |||