BGO Scintillator Crystal
Material:
BGO
Melting point (℃):
1050
Hardness(Mho):
5
Photoelectron Yield(% of NaI(Tl):
~22%
Density (g/cm³):
7.13
Atomic Number (Effective):
74
Refractive Index：
2.15@480nm
Wavelength (Max. Emission)(nm):
480
Main Specification of BGO Scintillator Crystal
| wdt_ID | Attributes | Values |
|---|---|---|
| 1 | Formula: | Bi4Ge3O12 |
| 2 | Growth Method: | Bridgman |
| 16 | Dimension: | Max diameter 76 x 300mm length (maximum boule) |
| 17 | Material | BGO |
| 18 | Density (g/cm³) | 7.13 |
| 19 | Melting point(℃) | 1050 |
| 20 | Atomic Number (Effective) | 74 |
| 21 | Hardness(Mho) | 5 |
| 22 | Refractive Index | 2.15@480nm |
| 23 | Photoelectron Yield(% of NaI(Tl)) | ~22% |
| 24 | Decay Time(ns) | 300 |
| 25 | Wavelength (Max. Emission)(nm) | 480 |
| 26 | Radiation Length(cm) | 1.12 |
BGO Scintillation Crystal Overview
BGO Scintillation Crystal (Bi4Ge3O12) is a scintillator 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. We can do holes-drilling, reflectors and matrix assembly for BGO.
Formula: Bi4Ge3O12
Growth Method: Bridgman
Dimension: Max diameter 76 x 300mm length (maximum boule)
Advantage:
- High density and atomic number
- Good radiation hardness
- No hygroscopicity
- Mechanical ruggedness
- Low afterglow
| wdt_ID | Comparing principal properties | Ce:YAG | LYSO | BGO | CsI | NaI |
|---|---|---|---|---|---|---|
| 1 | Structure | Cubic | Monoclin | Cubic | Cubic | Cubic |
| 32 | Density(g/cm) | 4.56 | 7.1 | 7.1 | 4.51 | 3.7 |
| 33 | Melt Point(℃) | 1970 | 2047 | 1050 | 894 | 651 |
| 34 | Effective Atomic | 35 | 66 | 74 | 54 | 51 |
| 35 | Peak wavelength(nm) | 550 | 420 | 480 | 550 | 410 |
| 36 | Refractive Index | 1.82 | 1.81 | 2.15 | 1.79 | 1.85 |
| 37 | Hardness(Mohs) | 8.5 | 5.8 | 4.5 | 2 | 2 |
| 38 | Cleavage | No | No | No | No | (100) |
| 39 | Hygroscopicity | No | No | No | Yes | Yes |
| 40 | Relative Light Output | 31 | 70-75 | 15 | 45 | 100 |
| 41 | Decay Time(ns) | 70 | 40 | 300 | 900 | 230 |
| 42 | Energy Resolution(%) | 7.5 | 10 | 12 | 8 | 7.8 |
| 43 | Anti-radiation(rad) | 108 | 108 | 102-3 | 108 | 10 |
| 44 | Afterglow(@at 6ms) | No | No | No | No | No |