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Journal Articles Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment Year : 2000

Irradiation studies of multimode optical fibres for use in ATLAS front-end links

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G. Mahout
  • Function : Author
M. Pearce
  • Function : Author
C.B. Arvidsson
  • Function : Author
D.G. Charlton
  • Function : Author
J.D. Dowell
  • Function : Author
R.J. Homer
  • Function : Author
P. Jovanovic
  • Function : Author
I.R. Kenyon
  • Function : Author
G. Kuyt
  • Function : Author
J. Lundquist
  • Function : Author
I. Mandic
  • Function : Author
H.R. Shaylor
  • Function : Author
R. Stroynowski
  • Function : Author
J. Troska
  • Function : Author
R.L. Wastie
  • Function : Author
A.R. Weidberg
  • Function : Author
J.A. Wilson
  • Function : Author
J. Ye

Abstract

The radiation tolerance of three multimode optical fibres has been investigated to establish their suitability for the use in the front-end data links of the ATLAS experiment. Both gamma and neutron irradiation studies are reported. A step-index fibre with a pure silica core showed an induced attenuation of ∼0.05 dB / m at 330 kGy ( Si ) and 1×10 15 n (1 MeV Si )/ cm 2 and is suitable for use with the inner detector links which operate at 40– 80 Mb / s . A graded-index fibre with a predominantly germanium-doped core exhibits an induced attenuation of ∼0.1 dB / m at 800 Gy ( Si ) and 2×10 13 n (1 MeV Si )/ cm 2 and is suitable for the calorimeter links which operate at 1.6 Gb / s . Measurements of the dose rate dependence of the induced attenuation indicate that the attenuation in ATLAS will be lower. (Elsevier)

Dates and versions

in2p3-00022583 , version 1 (25-05-2000)

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Cite

G. Mahout, M. Pearce, M.L. Andrieux, C.B. Arvidsson, D.G. Charlton, et al.. Irradiation studies of multimode optical fibres for use in ATLAS front-end links. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2000, 446, pp.426-434. ⟨10.1016/S0168-9002(99)01275-9⟩. ⟨in2p3-00022583⟩
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