Atomic and nuclear properties of Mt Blanc rock, std rock density

Quantity	Value	Units	Value	Units
<Z/A>	0.48003
Specific gravity	2.650	g cm-3
Mean excitation energy	159.2	eV
Minimum ionization	1.605	MeV g-1cm2	4.254	MeV cm-1
Nuclear collision length	66.8	g cm-2	25.19	cm
Nuclear interaction length	101.1	g cm-2	38.15	cm
Pion collision length	92.9	g cm-2	35.05	cm
Pion interaction length	131.0	g cm-2	49.45	cm
Radiation length	28.47	g cm-2	10.74	cm
Critical energy	50.73	MeV (for e-)	49.29	MeV (for e+)
Molière radius	11.90	g cm-2	4.491	cm
Plasma energy ℏωp	32.50	eV
Muon critical energy	711.	GeV

Composition:

Elem	Z	Atomic frac*	Mass frac
C	6	0.13	0.073601
Na	11	0.87	0.926399
* calculated from mass fraction data

For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PDF TEXT
Table of muon dE/dx and Range: PDF TEXT
Explanation of some entries
Note: Ieff calculated using the ICRU37 Table 5.1 algorithm for liquids and solids