Atomic and nuclear properties of cesium iodide (CsI)
QuantityValueUnits ValueUnits
<Z/A> 0.41569     
Specific gravity 4.510 g cm-3   
Mean excitation energy 553.1 eV   
Minimum ionization 1.243 MeV g-1cm2 5.605 MeV cm-1
Nuclear collision length 100.6 g cm-2 22.30 cm
Nuclear interaction length 171.5 g cm-2 38.04 cm
Pion collision length 124.7 g cm-2 27.65 cm
Pion interaction length 199.0 g cm-2 44.12 cm
Radiation length 8.39 g cm-2 1.860 cm
Critical energy 11.17 MeV (for e-) 10.80 MeV (for e+)
Molière radius 15.92 g cm-2 3.531 cm
Plasma energy ℏωp 39.46 eV   
Muon critical energy 198. GeV   
Melting point 894.2 K 621.0 C
Boiling point @ 1 atm 1553. K 1280. C
Index of refraction (Na D) 1.787     
Composition:
Elem ZAtomic frac* Mass frac
I
53
1.00
0.488451
Cs
 55
1.00
0.511549
* 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