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    STUDIA PHYSICA - Issue no. 1 / 2013  
         
  Article:   MONITORING OF THERMAL NEUTRON FLUX OF ISOTOPIC SOURCES BY ACTIVATION METHOD.

Authors:  .
 
       
         
  Abstract:  

Activation method was applied to determine the thermal and epithermal neutron fluxes delivered by 241Am-9Be &239Pu-9Be neutron double-source. Indium and gold metallic foils, as well as Sm2O3 and MnO2 powders were exposed to this neutron source. In the irradiated samples116mIn,198Au, 56Mn and 153Sm radioisotopes were activated to saturation. The data obtained from the analysis of gamma spectra recorded from the neutron activated radioisotopes were used to calculate the thermal and epithermal neutron emitted by241Am-9Be&239Pu-9Be double-source.

Keywords: neutron flux; neutron activation; gamma-ray spectrometry.

 
         
     
         
         
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