GOS:Pr crystal, GOS:Tb crystal , GOS:Pr scintillator, GOS:Tb Scintillators
Advantage
● High light yield
● Low decay-time and low afterglow
● Flexibility to your design and purpose.
● Contains no toxic or hazardous substances.
● Excellent in humidity resistance.
Application
● Medical imaging
● Medical CT
● Industrial CT scanner(NDT)
Properties
| Parameter |
GOS:Pr Ceramic |
GOS:Tb Ceramic |
| Peak Wavelength/nm |
512 |
550 |
| System |
Poly-crystalline ceramic |
Poly-crystalline ceramic |
| Transparency |
Translucent |
Translucent |
| Light Output( photons/keV) |
27 |
45 |
| Decay Time(ns) |
3000 |
600000 |
| Afterglow/@20ms |
≤0.01% |
≤0.03% |
| Atomic Coefficient |
60 |
60 |
| Density(g/cm3) |
7.34 |
7.34 |
| Hygroscopic |
No |
No |
| Mohs Hardness |
5 |
5 |
Product Description
GOS:Pr/GOS:Tb is a ceramic material composed of gadolinium oxysulfide activated by praseodymium(Pr) or terbium(Tb) as doping elements. With excellent scintillation properties, it is widely used as scintillator material in medical imaging equipment such as PET scanners. The scintillation process involves converting high-energy photons, or particles, into visible light.
When excited by incident radiation, gadolinium atoms in GOS:Pr/GOS:Tb emit photons, which are then detected by photodetectors. This process allows precise imaging and detection of radiation sources. GOS:Pr/GOS:Tb are known for their high light output, short decay time and low afterglow, enabling fast and accurate radiation detection. It also has high stopping power against X-rays and gamma rays, making it very effective in medical imaging applications. Overall, the GOS:Pr/GOS:Tb ceramic is a valuable scintillator material that has revolutionized the field of medical imaging, leading to earlier diagnosis and more effective treatment of diseases.
Performance Testing
GOS:Pr PD module comparison testing report
1. Dimensions
|
Item |
Length(mm) |
Width(mm) |
Height(mm) |
Gap(mm) |
Pixel |
Reflecto(mm) |
GOS |
|
Competitor’s |
25.4-0.1 |
3.0 |
1.25 |
0.2 |
1.575*2.9*1.2 |
0.05 |
GOS: Pr |
|
Kinheng GOS:Tb |
25.4-0.1 |
3.4 |
1.55 |
0.2 |
1.575*3.0*1.3 |
0.2 |
GOS: Tb |
|
Kinheng GOS:Pr |
25.4-0.1 |
3.4 |
1.55 |
0.2 |
1.575*3.0*1.3 |
0.2 |
GOS: Pr |
2. Different doping
1.GOS:Tb PD MODUL 4 PCS.
1. Light output testing condition Voltage: 63 kv; Current: 0.33mA
| S/N | Pixel 1 | Pixel 2 | Pixel 3 | Pixel 4 | Pixel 5 | Pixel 6 | Pixel 7 | Pixel 8 | Pixel 9 | Pixel 10 | Pixel 11 | Pixel 12 | Pixel 13 | Pixel 14 | Pixel 15 | Pixel 16 | Average |
| Tb -1 | 21088 | 21669 | 21782 | 21763 | 21614 | 21820 | 21754 | 21868 | 21931 | 21875 | 21840 | 21830 | 21670 | 21598 | 21705 | 21227 | 21689 |
| Tb -2 | 20702 | 21948 | 22070 | 21824 | 21791 | 21734 | 21904 | 21585 | 21649 | 21747 | 21905 | 21888 | 21821 | 21737 | 21890 | 21316 | 21719 |
| Tb -3 | 20515 | 21367 | 21701 | 21741 | 21394 | 21704 | 21811 | 21694 | 21743 | 21593 | 21600 | 21813 | 21880 | 21883 | 21679 | 20931 | 21565 |
| Tb -4 | 20568 | 21407 | 21562 | 21719 | 21761 | 21875 | 21640 | 21610 | 21836 | 21804 | 21881 | 21560 | 21731 | 21717 | 21651 | 21431 | 21609 |
2. Uniformity
| S/N | Pixel 1 | Pixel 2 | Pixel 3 | Pixel 4 | Pixel 5 | Pixel 6 | Pixel 7 | Pixel 8 | Pixel 9 | Pixel 10 | Pixel 11 | Pixel 12 | Pixel 13 | Pixel 14 | Pixel 15 | Pixel 16 | Max | Min |
| Tb -1 | -2.8% | -0.1% | 0.4% | 0.3% | -0.3% | 0.6% | 0.3% | 0.8% | 1.1% | 0.9% | 0.7% | 0.6% | -0.1% | -0.4% | 0.1% | -2.1% | 1.1% | -2.8% |
| Tb -2 | -4.7% | 1.1% | 1.6% | 0.5% | 0.3% | 0.1% | 0.9% | -0.6% | -0.3% | 0.1% | 0.9% | 0.8% | 0.5% | 0.1% | 0.8% | - 1.9% | 1.6% | -4.7% |
| Tb -3 | -4.9% | -0.9% | 0.6% | 0.8% | -0.8% | 0.6% | 1.1% | 0.6% | 0.8% | 0.1% | 0.2% | 1.1% | 1.5% | 1.5% | 0.5% | -2.9% | 1.5% | -4.9% |
| Tb -4 | -4.8% | -0.9% | -0.2% | 0.5% | 0.7% | 1.2% | 0.1% | 0.0% | 1.0% | 0.9% | 1.3% | -0.2% | 0.6% | 0.5% | 0.2% | -0.8% | 1.3% | -4.8% |
3. Afterglow: testing condition, voltage: 160kv; Current: 1 mA
|
Serial Number |
1ms |
3ms |
20ms |
50ms |
100ms |
|
Tb -1 |
0.1115 |
0.0363 |
0.0232 |
0.0185 |
0.0187 |
|
Tb -2 |
0.1197 |
0.0272 |
0.0165 |
0.0154 |
0.014 |
|
Tb -3 |
0.0895 |
0.0133 |
0.0119 |
0.0139 |
0.0158 |
|
Tb -4 |
0.1122 |
0.033 |
0.0258 |
0.0252 |
0.0211 |
4. Dimension：
| Item | L/mm 25.40.1 | W/mm 3.40.1 | H/mm ±0.05 | Pixel 1.375±0.05 | Naked crystal W 3.0±0.05 | Total length 25.0±0.05 | Gap 0.2±0.05 | Side reflector 0.2±0.05 | Top reflector 0.2±0.05 |
| Tb -1 | 25.39 | 3.363 | 1.52 | 1.386 | 2.998 | 24.978 | 0.188 | 0.19 | 0.199 |
| Tb -2 | 25.397 | 3.337 | 1.53 | 1.387 | 2.994 | 24.98 | 0.186 | 0.171 | 0.192 |
| Tb -3 | 25.392 | 3.352 | 1.53 | 1.389 | 3.003 | 24.98 | 0.187 | 0.167 | 0.196 |
| Tb -4 | 25.396 | 3.358 | 1.53 | 1.385 | 2.996 | 24.978 | 0.186 | 0.177 | 0.224 |
2. GOS:Pr PD Module 4 PCS
1. Light output: testing condition voltage: 63 kv; current: 0.33mA
| S/N | Pixel 1 | Pixel 2 | Pixel 3 | Pixel 4 | Pixel 5 | Pixel 6 | Pixel 7 | Pixel 8 | Pixel 9 | Pixel 10 | Pixel 11 | Pixel 12 | Pixel 13 | Pixel 14 | Pixel 15 | Pixel 16 | Average |
| Pr- 1 | 8922 | 9490 | 9483 | 9499 | 9535 | 9477 | 9405 | 9357 | 9230 | 9391 | 9388 | 9442 | 9346 | 9404 | 9381 | 9102 | 9366 |
| Pr-2 | 8897 | 9257 | 9343 | 9351 | 9360 | 9200 | 9201 | 9329 | 9408 | 9385 | 9395 | 9333 | 9346 | 9413 | 9337 | 8845 | 9275 |
| Pr -3 | 9041 | 9300 | 9302 | 9278 | 9362 | 9281 | 9252 | 9307 | 9178 | 9197 | 9342 | 9304 | 9261 | 9350 | 9265 | 8551 | 9223 |
| Pr -4 | 8914 | 9416 | 9492 | 9455 | 9578 | 9491 | 9449 | 9404 | 9464 | 9490 | 9428 | 9323 | 9469 | 9490 | 9434 | 9039 | 9396 |
2. Uniformity
| Serial Number | pixel1 | pixel2 | pixel3 | pixel4 | pixel5 | pixel6 | pixel7 | pixel8 | pixel9 | pixel10 | pixel11 | pixel12 | pixel13 | pixel14 | pixel15 | pixel16 | Max | Min |
| Pr- 1 | -4.7% | 1.3% | 1.3% | 1.4% | 1.8% | 1.2% | 0.4% | -0.1% | - 1.4% | 0.3% | 0.2% | 0.8% | -0.2% | 0.4% | 0.2% | -2.8% | 1.8% | -4.7% |
| Pr-2 | -4.1% | -0.2% | 0.7% | 0.8% | 0.9% | -0.8% | -0.8% | 0.6% | 1.4% | 1.2% | 1.3% | 0.6% | 0.8% | 1.5% | 0.7% | -4.6% | 1.5% | -4.6% |
| Pr -3 | -2.0% | 0.8% | 0.9% | 0.6% | 1.5% | 0.6% | 0.3% | 0.9% | -0.5% | -0.3% | 1.3% | 0.9% | 0.4% | 1.4% | 0.5% | -7.3% | 1.5% | -7.3% |
| Pr -4 | -5.1% | 0.2% | 1.0% | 0.6% | 1.9% | 1.0% | 0.6% | 0.1% | 0.7% | 1.0% | 0.3% | -0.8% | 0.8% | 1.0% | 0.4% | -3.8% | 1.9% | -5.1% |
3. Afterglow: Testing condition voltage: 160kv; current: 1 ma
|
Serial Number |
1ms |
3ms |
20ms |
50ms |
100ms |
|
Pr- 1 |
0.033 |
0.031 |
0.0238 |
0.0259 |
0.0213 |
|
Pr-2 |
0.0314 |
0.0256 |
0.0205 |
0.0258 |
0.0236 |
|
Pr -3 |
0.0649 |
0.0312 |
0.0154 |
0.0167 |
0.0171 |
|
Pr -4 |
0.0509 |
0.0202 |
0.018 |
0.0201 |
0.021 |
4. Dimension measurement:
| S/N | Length L/mm25.4-0.1 | Width W/mm3.4-0.1 | Height L/mm±0.05 | Pixel L 1.375±0.05 | Pixel w 3.0±0.05 | Total legth 25.0±0.05 | Gap0.2±0.05 | Sidereflector0.2±0.05 | Endreflector0.2±0.05 |
| Pr- 1 | 25.386 | 3.333 | 1.53 | 1.382 | 2.994 | 24.974 | 0.191 | 0.164 | 0.194 |
| Pr-2 | 25.384 | 3.348 | 1.54 | 1.381 | 2.991 | 24.975 | 0.194 | 0.182 | 0.198 |
| Pr -3 | 25.371 | 3.32 | 1.53 | 1.377 | 2.989 | 24.976 | 0.19 | 0.18 | 0.197 |
| Pr -4 | 25.396 | 3.332 | 1.53 | 1.382 | 2.989 | 24.971 | 0.192 | 0.19 | 0.228 |
3. Appearance / Dimension comparison:
