Neutron fluence and dose measurements by optical fibers

Henning Henschel; Otmar Koehn; S. Metzger; Marc C. Decreton; Paul de Vos; Olivier Deparis; Johannes Kirchhof; Stephan Grimm

doi:10.1117/12.267918

27 February 1997 Neutron fluence and dose measurements by optical fibers

Henning Henschel, Otmar Koehn, S. Metzger, Marc C. Decreton, Paul de Vos, Olivier Deparis, Johannes Kirchhof, Stephan Grimm

Author Affiliations +

Proceedings Volume 2867, International Conference Neutrons in Research and Industry; (1997) https://doi.org/10.1117/12.267918
Event: Fifth International Conference on Applications of Nuclear Techniques: Neutrons in Research and Industry, 1996, Crete, Greece

Abstract

It is shown that fibers doped with (Ge + P) or with (GE + B) can be used with good accuracy for fluence determinations of fast or slow neutrons, respectively, when they are calibrated at sources of known flux. Calibration at easily available gamma sources, as well as fast neutron dose determination, are complicated by the facts that energetic recoil protons generated by fast neutrons in H-containing fiber coatings contribute to the dose in the fiber core, and that the highly ionizing secondary particles released by fast and slow neutrons will cause significantly lower light absorption than beta or gamma rays of the same dose.

Citation Download Citation

Henning Henschel, Otmar Koehn, S. Metzger, Marc C. Decreton, Paul de Vos, Olivier Deparis, Johannes Kirchhof, and Stephan Grimm "Neutron fluence and dose measurements by optical fibers", Proc. SPIE 2867, International Conference Neutrons in Research and Industry, (27 February 1997); https://doi.org/10.1117/12.267918

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