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BGO substrate

BGO substrate

 

The main performance parameters

Crystal structure

Cubic

Lattice constant

a=10.518Å

Growth method

Czochralski method

Melting point

1050 ℃

Density

7.12g/cm3

Mohs hardness

5

Through the scope of

350~5500nm

Electro-optic coefficient (x10-12 M/V)

r41    1.03

Refractive index

2.098@ 632.8nm

Excitation spectrum

305nm

Fluorescence spectrum

480~510nm

Relative light output

10~14% Nal (Tl)

Decay time

300ns

Critical energy

10.5Mev

Energy resolution (511 KeV )

20%

 

Standard Specification
Product Name Orientation Standard Size Thickness Polishing  
BGO substrate
 (Bi4Ge3O12)
 or (Bi12GeO20)
<001> ±0.5°
<110> ±0.5°
Or other off-angle
10x10mm
10x5mm
5x5mm
Or others
0.5mm
1.0mm
2.0mm
Or others
Fine ground
Single side polished
Double side polished

Roughness: Ra<5A(0.5nm)
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BGO is the abbreviation of Bismuth germanate, It is a cubic structure, colorless and transparent inorganic oxide crystal, It can emits green fluorescence with a peak wavelength of 480 nm under excitation by high-energy particles and high-energy rays (x-ray, γ-ray). BGO crystal has strong luminescence properties at room temperature, high absorption coefficient, low afterglow, no deliquescence, excellent energy resolution, and is a new generation of scintillation crystal material with excellent performance. The BGO crystal can be used to detect X-rays, Y-rays, positrons and charged particles, and is widely used in high-energy physics, nuclear physics, nuclear medicine, nuclear industry and petroleum exploration.

 

 
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