塑料纤维

闪烁和透光

为研究和工业应用生产各种塑料闪烁、波长转换和透光纤维。 闪烁纤维由聚苯乙烯基芯和 PMMA 包层组成。闪烁芯包含荧光掺杂物质的组合,选择这些掺杂物质是为了实现理想的闪烁、光学和抗辐射特性。

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

闪烁、波长转换和透光单纤维带
 
  • 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”)
Scintillating fiber in ribbon form
 

Fibers

Applications

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.

BCF-XL

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

BCF-XL

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.

 

BCF-XL

 

Scintillating Fibers

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
  • Luxium’s first fiber
  • General-purpose; optimized for diameters >250μm.
BCF-12XL       blue          435         3.2           ~8000              >4
  • Luxium’s most commonly used scintillating fiber.
  • Improved transmission for use in long lengths.
BCF-9998XL       blue          435         3.2           ~8000              >4
  • Similar to BCF-12XL
  • Optimized for maximum light output in short length canes (<0.5m)
BCF-20XL      green          492         2.7           ~8000              >4
  • Fast green scintillator
BCF-60XL      green          530          7           ~7100              >4
  • 3HF formulation for increased radiation hardness

* For Minimum Ionizing Particle (MIP), corrected for PMT sensitivity

** For 1mm diameter fiber, measured using Silicon Photodiode

 

Emission Spectra

BCF-XL

 

BCF-XL

 

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

 

Wavelength-Shifting Fibers

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
  • UV to blue shifter
BCF-91AXL      green        420      494          12            >4
  • Blue to green shifter
BCF-92XL      green        405      492          2.7            >4
  • Fast blue to green shifter
BCF-9929AXL      green        405      492          2.7            >4
  • Blue to green shifter
  • Pairs well when exciting wavelength are >425nm (e.g. injection-molded and extruded scintillators)
BCF-9906AXL     orange        435      575         21.6              -
  • Green to orange shifter
BCF-99172XL        red        575      605         22.6              -
  • Green to red shifter

* For Minimum Ionizing Particle (MIP), corrected for PMT sensitivity

** For 1mm diameter fiber, measured using Silicon Photodiode

 

Absorption and Emission Spectra

BCF-XL

 

BCF-XL

 

BCF-XL

 

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

Material & Structure

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​.

 

 

Forms/Configurations

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
BCF-XL

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

BCF-XL
  • 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。

Data Sheets
149228_Luxium_PSWS Fibers Brochure_CPrint2.pdf
PDF | 4.85 MB
Operation and Care
Plastic Fiber Care

Care Instructions for Plastic and Fiber Scintillators

PDF | 60.06 KB
Care-Instructions-Plastic-Fiber-Scintillators