BGO | Scintillation Crystal

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The BGO | Scintillation Crystal is the most widely used oxide-based scintillator owing to its many strengths, including high density, ruggedness, and radiation hardness.

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SKU: BGO Category:

Description

BGO (Bi4Ge3O12) is a scintillation crystal used for gamma ray detection with a high effective atomic number and density.

BGO | Scintillation Crystal has an emission peak of 480 nm, coupling well with PMT and SiPM. Compared to other scintillation crystals, BGO has an unparalleled absorption rate at photopeak. Its energy resolution is about 12%. The scintillation characteristics of BGO changes linearly with temperature. Combined with digital signal processing (DSP), it can work under harsh conditions. With small volume, it can work stably under refrigeration.

BGO | Scintillation Crystal is a tried and tested scintillator with many ideal scintillation properties, including:

  • High density and atomic number
  • Good radiation hardness
  • No hygroscopicity
  • Mechanical ruggedness
  • Low afterglow

Growth method: Bridgman
Formula: Bi4Ge3O12

With access to the complete crystal finishing process, X-Z LAB has the means to provide custom crystals using state-of-the-art line cutting; fine grinding and polishing machines; and stable matrix assembly techniques.

 

MAIN APPLICATIONS

The most common oxide-based scintillator, BGO | Scintillation Crystal has been the popular choice for radiation detection. Because of its high detection efficiency and excellent physical properties, it has overtaken NaI(Tl) in higher energy applications, such as positron emission tomography (PET). Other applications include high-energy physics, nuclear medicine, geological prospecting, and gamma pulse spectroscopy.

Technical Specifications

Density

7.13 g/cm³

Melting Point

1,323 K

Refractive Index

2.15

Effective Atomic Number

73

Hardness

5 Mohs

Hygroscopicity

No

Cleavage

No

Wavelength

480 nm

Lower Wavelength Cutoff

320 nm

Decay Time

300 ns

Light Output

8–10 photons/keV

Photoelectron Yield

15–20% ∝ NaI(Tl)

Thermal Expansion Coefficient

7 x 10⁻⁶/°C

Temperature Response

-1.2%/°C

Afterglow

0.005% @ 3 ms

Energy Resolution

12.0%

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