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. Multi-clad fibers have a second layer of cladding that has an even lower refractive index and, thus, permits total internal reflection at a second boundary. The additional photons guided by multi-clad fibers increase the output signal up to 60% over conventional single-clad fibers.
Current sizes range from 0.25 mm to 5 mm square or round cross-sections and available in canes, spools, ribbons, and arrays. 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.
|Fiber Type||Emission Color||Emission Peak, nm||Decay Time, ns||# of Photons per MeV**||Characteristics/ Applications|
|BCF-10||blue||432||2.7||~8000||General purpose; optimized for diameters >250μm|
|BCF-12||blue||435||3.2||~8000||Improved transmission for use in long lengths|
|BCF-20||green||492||2.7||~8000||Fast green scintillator|
|BCF-60||green||530||7||~7100||3HF formulation for radiation hardness|
|BCF-91A||green||494||12||n/a||Shifts blue to green|
|BCF-92||green||492||2.7||n/a||Fast blue to green shifter|
|** For Minimum Ionizing Particle (MIP), corrected for PMT sensitivity|