BaF2 (Barium Fluoride)

Crystals >>> Scintillating Crystal >>>  BaF2

Barium fluoride or BaF2 crystal is of high transmission and good scintillation. As a scintillation crystal, it has two components with different decay times. Its remarkable characteristic is that it is the fast one in the known scintillation crystals, and that its fast/slow component ratio changes little with temperature. So BaF2 crystal is applied widely to the field concerned to the study of positron annihilation, such as materials science, particle physics and nuclear medicine.

Red Optronics can supply BaF2 crystals up to 5050350mm3 (cuboids) or φ140150mm (cylinder).

Scintillation Properties  

Space group

Fm3m

Cleavage

(111)

Density (g.cm-3)

4.89

Melting point (C)

1280

Hardness (Mho)

3

Hygroscopic

No

Radiation length (cm)

2.06

Peak emission (nm)

310(slow)220(fast)

Decay constant (ns)

620(slow)0.6(fast)

Refractive index at peak emission

1.51(slow)1.49(fast)

Afterglow (after 3ms) (%)

0.005

Light output relative to Nal(Tl) (%)

20%(slow)4%(fast)

 

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