Atomic and nuclear properties of lanthanum fluoride (LaF₃)

Quantity	Value	Units	Value	Units
<Z/A>	0.42879
Specific gravity	5.900	g cm-3
Mean excitation energy	336.3	eV
Minimum ionization	1.346	MeV g-1cm2	7.943	MeV cm-1
Nuclear collision length	87.7	g cm-2	14.86	cm
Nuclear interaction length	142.2	g cm-2	24.10	cm
Pion collision length	113.5	g cm-2	19.24	cm
Pion interaction length	172.8	g cm-2	29.29	cm
Radiation length	10.42	g cm-2	1.766	cm
Critical energy	14.93	MeV (for e-)	14.46	MeV (for e+)
Molière radius	14.80	g cm-2	2.508	cm
Plasma energy ℏωp	45.83	eV
Muon critical energy	246.	GeV

Composition:

Elem	Z	Atomic frac*	Mass frac
La	57	1.00	0.709061
F	9	3.00	0.290939
* 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