Koster-Ammerlaan M J J, Bacchi M A, Bode P, De Nadai Fernandes E A
Delft University of Technology, Reactor Institute Delft, Delft, The Netherlands.
Appl Radiat Isot. 2008 Dec;66(12):1964-9. doi: 10.1016/j.apradiso.2008.06.001. Epub 2008 Jun 7.
The Zr-Au set for monitoring the thermal and epithermal neutron fluence rate and the epithermal spectrum parameter alpha is not always practicable for routine application of INAA in well-thermalized facilities. An alternative set consisting of Cr, Au and Mo provides values for the thermal neutron fluence rate, f and alpha that are not significantly different from those found via the Zr-Au method and the Cd-covered Zr-method. The IRMM standard SMELS-II was analyzed using the (Au-Cr-Mo) monitor and a good agreement was obtained.