Reactor dosimetry with niobium

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Abstract

The main advantages of using niobium in reactor dosimetry are briefly summarised. Some experimental aspects and complications of niobium dosimetry are discussed. Special techniques can be applied to overcome most of these problems. Particular concern has to be given to the detector calibration for the X-ray measurements. The main problem however, embrittlement of pure niobium under intense neutron irradiation, is still not solved. For this purpose a new type of material (Al-10%Nb alloy) was prepared. Although testing of this material is still ongoing, preliminary results are promising. This material moreover doesn’t necessarily require applying special techniques for the X-ray measurements. Finally it is explained that niobium is a suitable material for the determination of thermal and epithermal fluences in high flux environments.

Details

Original languageEnglish
Pages (from-to)1-8
JournalJournal of ASTM International
Volume3
Issue number2
DOIs
Publication statusPublished - Feb 2006
EventISRD 2005 - 12th International Symposium on Reactor Dosimetry - ASTM-EWGRD, Gatlinburg, United States
Duration: 8 May 200513 May 2005

Keywords

  • reactor dosimetry, neutron flux, neutron fluence, activation

ID: 284804