Quantity | Value | Units |
Value | Units |
<Z/A> |
0.62334
| |
| |
Specific gravity
(20° C, 1 atm) |
6.672E-04 |
g cm-3 |
| |
Mean excitation energy |
41.7 |
eV |
| |
Minimum ionization |
2.417 |
MeV g-1cm2 |
1.613E-03 |
MeV cm-1 |
Nuclear collision length |
54.0 |
g cm-2 |
8.096E+04
| cm |
Nuclear interaction length |
73.8 |
g cm-2 |
1.106E+05
| cm |
Pion collision length |
81.8 |
g cm-2 |
1.226E+05
| cm |
Pion interaction length |
105.4 |
g cm-2 |
1.580E+05
| cm |
Radiation length |
46.47
| g cm-2 |
6.965E+04
| cm |
Critical energy |
146.86 |
MeV (for e-) |
143.82
| MeV (for e+) |
Molière radius |
6.71 |
g cm-2 |
1.006E+04
| cm |
Plasma energy ℏωp |
0.59 |
eV |
| |
Muon critical energy |
1716. |
GeV |
| |
Melting point |
90.68 |
K |
-182.5
| C |
Boiling point @ 1 atm |
111.7
| K |
-161.5
| C |
Index of refraction
(0° C, 1 atm, Na D) |
444.
| (n-1)x106 |
|
| |
Composition: