อุปกรณ์จัดเรียงก๊าซ Pbow4

Lead Tungstate(PbWO4) crystal is distinguished by its short radiation length and strong irradiation hardness, its has emission peaks between 440/550 nm with a fast decay time in the range from 6/30 ns 

Basic information of PbWO4 scintillator

Growth method: Bridgman
Dimension range: 50 mm x 200 mm (maximum boule)
Available items: Monolithic

Typical features of PbWO4 scintillator

PbWO4 scintillator(Lead Tungstate) has a heavy density(8.28 g/cm3), Z value(73) and fast decay time(6/30 ns), it has the least radiation length and Moliere radius values, 0.9 cm and 2.19 cm, respectively, and the radiation damage appears at doses exceeding 105 Gy.

Main application of PbWO4 scintillator

Although the light output of PbWO4 scintillator is as low as about 0.5% of that from NaI tl scintillator, which has the limitations in some applications, it is suitable in the high energy physics, typically the CMS detector in European Organization for Nuclear Research(CERN). And considering its high density and fast decay time, it may also have an extensive application prospect in nuclear medicine.

Properties of PbWO4

Density(g/cm3): 8.28
Radiation length(cm): 0.92
Decay time(ns): 6/30
Emission peak(nm): 440/530
Light output(%NaI: TI): 0.5
Melting point(° C): 1123
Hardness(Mho): /
Refractive Index: 2.16
Hygroscopic: None
Cleavage: (101)