Atomic and nuclear properties of materials:
Viton fluoroelastomer (C₅H₂F8)_n

Quantity	Value	Units	Value	Units
<Z/A>	0.48585
Specific gravity	1.80	g cm-3
Minimum ionization	1.701	MeV g-1cm2	3.062	MeV cm-1
Nuclear collision length	62.9	g cm-2	34.96	cm
Nuclear interaction length	93.1	g cm-2	51.73	cm
Radiation length	35.36	g cm-2	19.64	cm
Critical energy	65.82	MeV (for e-)	64.02	MeV (for e+)
Molière radius	11.39	g cm-2	6.329	cm
Plasma energy	26.95	eV
Muon critical energy	879.	GeV

Composition:

Elem	Z	Atomic frac*	Mass frac*
H	1	2.00	0.009417
C	6	5.00	0.280555
F	9	8.00	0.710028
* calculated from mass fraction data.

Explanation of some entries
For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT
Table of muon dE/dx and Range: PS PDF TEXT