| Quantity | Value | Units | Value | Units |
| <Z/A> | 0.43670 | |||
| Density | 6.47 | g cm-3 | ||
| Minimum ionization | 1.314 | MeV g-1cm2 | 8.503 | MeV cm-1 |
| Nuclear collision length | 92.8 | g cm-2 | 14.33 | cm |
| Nuclear interaction length | 155.2 | g cm-2 | 23.98 | cm |
| Pion collision length | 117.4 | g cm-2 | 18.14 | cm |
| Pion interaction length | 183.2 | g cm-2 | 28.31 | cm |
| Radiation length | 9.87 | g cm-2 | 1.525 | cm |
| Critical energy | 13.98 | MeV (for e-) | 13.52 | MeV (for e+) |
| Molière radius | 14.97 | g cm-2 | 2.313 | cm |
Plasma energy ![]() |
48.45 | eV | ||
| Muon critical energy | 239. | GeV |
| Elem | Z | Atomic frac* | Mass frac* |
| 35 | |||
| 47 | |||
| * calculated from mass fraction data. | |||