Scintillation Crystals and Detectors: BGO

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Scintillation Crystals and Detectors: BGO

Description

Bismuth Germanate (Bi4Ge3O12), also known as BGO, is a scintillation crystal that is commonly used in medical imaging and nuclear physics experiments. It has a high stopping power for gamma rays and a high light yield, making it a popular choice for detectors in PET (positron emission tomography) and SPECT (single-photon emission computed tomography) scanners. BGO scintillation detectors are also used in high-energy physics experiments to detect gamma rays and electrons.

Specification

Properties/crystal	BGO
Crystal structure	cubic
Lattice constant( Å )	-
Melting point, °C	1050
Density, g/cm³	7.13
Mohn hardness	5
Thermal expansion, 10^-6/K	-
Refractive index	1.05-1.12
Emission wavelength (nm )	300
Decay constant (ns )	5
Radiation length (cm )	-
Hygroscopic	No
Afterglow % at 6ms	-
Effective atomic number	75
Light yield [photons/MeVy]	-
Background, pulse/sec/kg	-
Crystal cleavage plane	-

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