Abstract

The use of flexible fiber-optic bundles as lightguides for thin scintillators in a telescope is described. The telescopes will be used in the pion induced fission experiment π + 6 Li → 2 3 He . The fiber-optic lightguide detector was tested, under identical condi against a conventional lightguide-detector arrangement and for α-particles of 5.5 MeV. An efficiency > 99% was obtained with a relative transmission efficiency of ∼ 45% compared to the conventional lightguide arrangement.

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