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Fibers

Green, red and translucent scintillating fibers on display.
Green, red and translucent scintillating fibers on display.

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A variety of plastic scintillating, wavelength-shifting and light-transmitting fibers are produced for research and industry.  Scintillating fibers consist of a polystyrene-based core and a PMMA cladding. The scintillating core contains a combination of fluorescent dopants selected to produce the desired scintillation, optical and radiation-resistance characteristics.

BCF-XL series of scintillating and wavelength shifting fibers with improved, market-leading attenuation length for optimal, reliable performance for a variety of different applications.

Current sizes range from 0.5 mm to 3 mm round cross-sections and are available in canes, spools, ribbons, and arrays. Custom sizes and designs are available upon request. Fibers > 2mm are available only in cane form to prevent the fiber from retaining the shape of the spool.

Scintillating fibers are well-suited for such applications as Industrial gauging, Calorimeters, Real-time imaging systems.

The flexibility of fibers allows them to conform to surface shapes, yielding geometries superior to those of other types of detectors. Examples are detectors for monitoring pipes or barrels.

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Stefan Mårtensson

Stefan

Technical specification

Scintillating fibers

Emission color: blue / green
Emission peak [nm]: 432 – 530
Decay time [ns]: 2.7 – 7
# of photons per MeV: ~7100 – ~8000
Attenuation length [m]: >4

Wavelength-shifting fibers

Emission color: blue / green / orange / red
Emission peak [nm]: 494 – 605
Decay time [ns]: 2.7 – 22.6
Attenuation length [m]: >4

Core specifications:

Material: polystyrene
Refractive index: 1.60
Density: 1.05 g/cm³
Operating Temperature: -20 °C to +50 °C
Vacuum compatible: yes

Cladding specifications:

Cladding material: acrylic
Refractive index: 1.49
Thickness (round fibers): 3% of diameter
Numerical aperture: 0.58
Trapping efficiency (round fibers): 3.44% minimum
Radiation length: 42 cm

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