目前的尺寸范围为 0.5 mm 至 3 mm(圆形截面),有棒状、卷轴、带状和阵列等形式可供选择。亦可根据要求提供定制设计和规格。2mm 以下的纤维仅以棒状形式提供,以防止纤维保留卷轴的形状。
闪烁纤维非常适合工业测量、热量计、实时成像系统等应用。
可灵活地适应各种表面形状,产生优于其他类型探测器的几何形状。例如,用于监测管道或桶的探测器。
特性
纤维类型 | 发光颜色 | 发射峰 (nm) | 衰减时间 (ns) | 光子数/MeV** | 特性/应用 |
---|---|---|---|---|---|
BCF-10 | 蓝色 | 432 | 2.7 | ~8000 | 通用;针对直径 >250μm 的产品进行优化 |
BCF-12 | 蓝色 | 435 | 3.2 | ~8000 | 针对长距离的使用改进透光率 |
BCF-20 | 绿色 | 492 | 2.7 | ~8000 | 快速绿光闪烁体 |
BCF-60 | 绿色 | 530 | 7 | ~7100 | 针对辐射硬度的 3HF 配方 |
BCF-91A | 绿色 | 494 | 12 | 不适用 | 从蓝色转换为绿色 |
BCF-92 | 绿色 | 492 | 2.7 | 不适用 | 从蓝色快速转换为绿色 |
BCF-98 | 不适用 | 不适用 | 不适用 | 不适用 | 透明波导 |
** 对于最小电离粒子 (MIP),根据 PMT 灵敏度进行校正
纤维带设计参数
- 最小纤维直径 0.5mm
- 标准纤维带长度 2" (50mm)(最小) / 130" (3300mm)(最大)
- 如有超出标准长度尺寸的要求,请联系我们
- 最大宽度 20" (508mm)
- 纤维带末端表面处理选项
- 粗加工表面处理:+/- 12.7mm (+/- 0.5”)
- 金刚石铣削表面处理
长度 <2m:+/- 0.25mm (+/- 0.010”)
长度 >2m:+/- 1mm (+/- 0.0394”)
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Fibers
- Applications
- Scintillating Fibers
- Wavelength-Shifting Fibers
- Material & Structure
- Forms/Configurations
High Energy Physics (HEP)
Calorimeters and tracking systems (trackers) are two of the most common HEP systems that use scintillating and wavelength-shifting (WLS) fibers.
Calorimeters measure the energy of electrons, photons and hadrons. The electromagnetic calorimeter (ECAL) and the hadronic calorimeter (HCAL) are two significant calorimeters that make up part of most modern high energy physics detectors. Most large, modern detectors have both an electromagnetic calorimeter and a hadronic calorimeter.
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Tracking systems are used to track the trajectory of electrically charged particles within particle detectors. Historically, these types of systems were solid state trackers (also known as silicon trackers), which began in 1980 with the advent of semiconductors.
Due to improvements in SiPM technology, scintillating fiber trackers are becoming more widespread and offer significant benefits over silicon trackers. These include a faster, lower cost, flexible detector that can operate in radiation hard environments with similar resolution to silicon trackers.
Muon Detection
What is a Muon? Muons are found in the cosmic radiation near the earth’s surface. Scintillating fibers are an efficient material for utilizing muons to visualize and inspect bridge structures. This muon tomography technology is new and will continue to improve for use in many other applications.
Fibers have been used in canes spools and ribbons as a great solution for these projects.
3D Printing
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Our unclad fiber can be used as a filament feed material for 3D printers. This allows end users to form scintillating material into more complex shapes as needed.
With the global growth of additive manufacturing, the use of 3D printing has expanded into more and more complex applications, including those that use scintillators.
Industrial Gauging
Our fibers are used in conjunction with an x-ray source to measure the contents within enclosed containers. Breweries to chemical suppliers and beyond, the need to measure the contents within enclosed containers without exposure or contamination.
Recreation
A little-known use for "colored" fiber is for bow site archery. The fiber collects the low ambient light to provide a lighted site pin to line up the target.
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The BCF-XL series of scintillating fibers has improved, market-leading attenuation length for optimal, reliable performance in a wide range of applications. Additionally, Luxium can customize new formulations to meet your specific needs.
Formulations
Fiber Type |
Emission Color |
Emission Peak (nm) |
Decay Time (ns) |
# of Photons per MeV* |
Attenuation Length (nm)** |
Characteristics/Applications |
---|---|---|---|---|---|---|
BCF-10XL | blue | 432 | 2.7 | ~8000 | >4 |
|
BCF-12XL | blue | 435 | 3.2 | ~8000 | >4 |
|
BCF-9998XL | blue | 435 | 3.2 | ~8000 | >4 |
|
BCF-20XL | green | 492 | 2.7 | ~8000 | >4 |
|
BCF-60XL | green | 530 | 7 | ~7100 | >4 |
|
* For Minimum Ionizing Particle (MIP), corrected for PMT sensitivity
** For 1mm diameter fiber, measured using Silicon Photodiode
Emission Spectra
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Samples
Luxium Solutions provides the following scintillating fiber samples in 0.5mm or 1.00mm diameter in 1m length canes. Custom diameters and lengths may be available upon request.
BCF-12XL
BCF-9998XL
BCF-20XL
BCF-60XL
The BCF-XL series of wavelength-shifting fibers has improved, market-leading attenuation length for optimal, reliable performance in a wide range of applications. Additionally, Luxium can customize new formulations to meet your specific needs.
Formulations
Fiber Type |
Emission Color |
Emission Peak (nm) |
Decay Time (ns) |
# of Photons per MeV* |
Attenuation Length (m)** |
Characteristics/Applications |
BCF-9995XL | blue | 345 | 440 | 2.7 | >4 |
|
BCF-91AXL | green | 420 | 494 | 12 | >4 |
|
BCF-92XL | green | 405 | 492 | 2.7 | >4 |
|
BCF-9929AXL | green | 405 | 492 | 2.7 | >4 |
|
BCF-9906AXL | orange | 435 | 575 | 21.6 | - |
|
BCF-99172XL | red | 575 | 605 | 22.6 | - |
|
* For Minimum Ionizing Particle (MIP), corrected for PMT sensitivity
** For 1mm diameter fiber, measured using Silicon Photodiode
Absorption and Emission Spectra
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Samples
Luxium Solutions provides the following scintillating fiber samples in 0.5mm or 1.00mm diameter in 1m length canes. Custom diameters and lengths may be available upon request.
BCF-9995XL
BCF-91AXL
BCF-92XL
BCF-9929AXL
The BCF-XL series of wavelength-shifting fibers has improved, market-leading attenuation length for optimal, reliable performance in a wide range of applications. Additionally, Luxium can customize new formulations to meet your specific needs.
Core:
The scintillating core is polystyrene-based and contains a combination of fluorescent dopants selected to produce the desired scintillation, optical and radiation resistance characteristics. Often, one property is enhanced while another is mildly compromised. In small fibers (< 0.5mm), the fluor concentration may be increased on request, usually at the expense of light attenuation length. These fibers yield about 8,000 photons per MeV deposited.
Core Specifications |
Value |
Core Material | Polystyrene |
Core Refractive Index | 1.60 |
Density | 1.05 g/cm3 |
No. of H Atoms per CC | 4.82 x 1022 |
No. of C Atoms per CC | 4.85 x 1022 |
No. of Electrons per CC | 3.4 x 1023 |
Operating Temperature | -20°C to +50°C |
Vacuum Compatible | Yes |
Cladding:
PMMA (polymethylmethacrylate, C5 H8 O2) is the standard cladding material for Luxium Solutions’ fibers. It has a density of 1.2 g/cc and a refractive index of 1.49. The refractive indices of the core and cladding and the cross sectional shape of the fiber determine the trapping efficiency. In round fibers, the trapping efficiency also depends on the distance between the fiber axis and the scintillation event. The trapping efficiency of Luxium Solutions’ round fibers ranges from 3.4% for events occurring at the fiber axis to approximately 7% for events near the core-cladding interface.
Core Specifications |
Value |
Cladding Material | Acrylic |
Cladding Refractive Index | 1.49 |
Cladding Thickness (Round Fibers) | 3% of Fiber Diameter |
Cladding Thickness (Square Fibers) | 4% of Fiber Diameter |
Numerical Aperture | 0.58 |
Trapping Efficiency (Round Fibers) | 3.44% Minimum |
Trapping Efficiency (Square Fibers) | 4.40% Minimum |
Radiation Length | 42 cm |
Cross-section:
All Luxium fiber formulations can be manufactured in round or square dimensons.
Round Fiber Specifications |
Value |
Available Diameters* | 0.5 - 3mm |
Diameter Tolerance | +/- 2% |
Trapping Efficiency | 3.44% Minimum |
Cladding Thickness | 3% of Fiber Diameter |
* Diameters outside this range could be considered based on business justification/feasibility.
Square Fiber Specifications |
Value |
Available Diameters* | 0.5 - 2mm |
Diameter Tolerance | +/- 3% |
Trapping Efficiency | 4.40% Minimum |
Cladding Thickness | 4% of Fiber Diameter |
* Diameters outside this range could be considered based on business justification/feasibility.
Luxium fibers are available in spools, canes or ribbons and can manufactured to various dimensions.
Spools
- Available in 0.5 – 2mm diameter (>2mm diameter cannot be spooled, must be canes)
- Diameters outside this range could be considered based on business justification/feasibility
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Canes
- Available in 0.5 – 4.5m* lengths
- Available in rough-cut (standard) or diamond-milled end finish (additional cost)
- Rough cut end length tolerance: +2/-0 mm
- Diamond-milled end length tolerance: +/- 0.25mm
Ribbons
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- Available for all standard formulations and sizes
- Standard Ribbon Length: 50 (2”) – 3300 (130”) mm
- Width: 508mm (20”) maximum
- Ribbon standard end finish options
- Rough-Cut Finish: +/- 12.7mm (+/- 0.5”)
- Diamond-Mill Finish:
- <2m ribbon length: +/- 0.25mm
- >2m ribbon length: +/- 1mm
常见问题解答
纤维光输出是如何定义的?
我们将光输出定义为每 MeV 的光子数,即最小电离粒子数,对于 BCF-12 来说大约是 8000。 电离粒子越密集,每单位能量发出的光就越少。
纤维卷轴的尺寸是多少?
纤维被缠绕在一个外径为 30" (762mm) x 27.4"、芯长 (698.5mm) x 2.25" (57mm)、中心孔为 1" (50.8mm) 的卷轴上。它可以容纳 1000 米的 1 毫米纤维。
纤维闪烁体对中子敏感吗?
所有纤维闪烁体都对通过质子反冲的快中子敏感。
纤维闪烁体的典型弯曲半径是多少?
典型的弯曲半径是纤维闪烁体本身直径的 30-40 倍。
纤维闪烁体的温度下限是多少?
工作温度的下限尚未确定,但已经有研究实验室在低至约 4 摄氏度的温度下使用纤维闪烁体。 纤维闪烁体在低温下会丧失柔韧性。