Atomic and nuclear properties of methanol (CH₃OH)

Quantity	Value	Units	Value	Units
<Z/A>	0.56176
Specific gravity	0.7914	g cm-3
Mean excitation energy	67.6	eV
Minimum ionization	2.038	MeV g-1cm2	1.613	MeV cm-1
Nuclear collision length	57.4	g cm-2	72.57	cm
Nuclear interaction length	81.1	g cm-2	102.5	cm
Pion collision length	85.0	g cm-2	107.4	cm
Pion interaction length	113.0	g cm-2	142.8	cm
Radiation length	39.43	g cm-2	49.83	cm
Critical energy	88.24	MeV (for e-)	85.92	MeV (for e+)
Molière radius	9.48	g cm-2	11.97	cm
Plasma energy ℏωp	19.21	eV
Muon critical energy	1136.	GeV

Composition:

Elem	Z	Atomic frac*	Mass frac
H	1	4.00	0.125822
C	6	1.00	0.374852
O	8	1.00	0.499326
* 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