excellence in inorganic scintillators to Proteus index
LYSO YSO YAP BGO CdI:Tl LSO:Ce PWO LiI:Eu organics
PWO ( Lead Tungstate - PbWO4 ) crystals from Proteus:

Photographs are showing
PWO crystal exaples from Proteus. 		PWO crystal example
PWO crystal example PWO crystal example
  physical and scintillation properties of PWO
  effective Z# 73   density 8.28 g/cm3
  hygroscopicity none   peak wavelength 440 ~ 500nm
  decay constant 5 ~ 15nSec   reflactive index at peak 2.16
  crystal type   Tetragonal   Light output  ( NaI(Tl)=100% ) ~ 1%
  melting point 1,123°C   hardness [moh] ~ 4
PWO 50mm x 50mm x 100mm crystal examples of large size PWO crystal

Left:   50mm x 50mm x 100mm
Below:   25mm x 25mm x 200mm
PWO 25mm x 25mm x 200mm crystal

Local distributor in Japan
PROTEUS, Inc. G-tech TopPage
PO.Box.747, 120 Senlac Hills Drive,
Chagrin Falls, Ohio   44022    U.S.A. 		365-1, Sayamagahara,
Iruma-shi,   Saitama,   358-0032
Phone#
Fax# 		+1-440-247-1601
+1-440-247-1602 		Phone#
Fax# 		+81-(0)4-2935-2777
+81-(0)4-2935-2778
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