Atomic and nuclear properties of Freon-13b1 (CF₃Br)

Quantity	Value	Units	Value	Units
<Z/A>	0.45665
Specific gravity (20° C, 1 atm)	1.500	g cm-3
Mean excitation energy	210.5	eV
Minimum ionization	1.513	MeV g-1cm2	2.270	MeV cm-1
Nuclear collision length	75.2	g cm-2	50.16	cm
Nuclear interaction length	117.5	g cm-2	78.31	cm
Pion collision length	101.5	g cm-2	67.66	cm
Pion interaction length	148.1	g cm-2	98.76	cm
Radiation length	16.53	g cm-2	11.02	cm
Critical energy	27.60	MeV (for e-)	26.80	MeV (for e+)
Molière radius	12.70	g cm-2	8.467	cm
Plasma energy ℏωp	23.85	eV
Muon critical energy	418.	GeV

Composition:

Elem	Z	Atomic frac*	Mass frac
C	6	1.00	0.080659
F	9	3.00	0.382749
Br	35	1.00	0.536592
* 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