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  • Prysmian and Draka Cable RadHard 50μm Graded-Index-Multimode Fibre Cable (MIL-PRF-49291/1)

    This DrakaEliteTM RadHard 50 μm core diameter multimode fibre (MMF) can be used for high irradiative environments (e.g. gamma rays, X-flash, neutrons protons) up to a dose of about 10 kGy. For extreme irradiative environments (some MGy dose) DrakaEliteTM Super RadHard 50 μm core diameter MMF is recommended. Note: 1 Gy = 100 Rad.

    This Germanium-doped 50 μm core diameter RadHard MMF has been qualified and approved by the U.S. Defense Supply Center, Columbus (DSCC) in accordance with the U.S. Military MIL-PRF-49291/1.

    Because Radiation Induced Attenuation (RIA) is a strong function of time after dose, dose rate, temperature, system operational wavelength, and system operational power, assessing the RIA performance of different fibres should be conducted as close to conditions in the final application as possible.

    The DrakaEliteTM 50 μm core diameter RadHard MMF can be used in all cable constructions, including loose tube, tight buffered, ribbon and central tube designs. This fibre complies with or exceeds IEC 60793-2-10 category A1a.1 Optical Fibre Specification, TIA-492AAAB and Telcordia GR-20-Core.

    Prysmian Group’ fibre plant Draka Comteq Fibre B.V. in Eindhoven , Netherlands, is MIL-STD-790 certified.

    • RadHard behaviour
    • Coated with the dual layer UV Acrylate

    • Suitable for medium irradiative environments
    • Optimized performance in tight-buffer cable applications

    steady state gamma irradiation test conditions – mil 49291-1
    temperature dose rate total dose
    - 28°c / 25°c / 85°c 0.50 gy/s (sio2) classified

    irradiation test requirements – mil 49291-1
    max. induced
    attenuation @1310nm
    attenuation at
    specified recovery time
    specified recovery time
    < 50 db/km
    (total dose classified)
    < 15 @ -28 °c
    < 5 @ 25 °c
    < 5 @ 85 °c
    1000 s

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