Author/Authors :
Engle، نويسنده , , Jonathan W. and James، نويسنده , , Michael R. and Mashnik، نويسنده , , Stepan G. and Kelsey IV، نويسنده , , Charles T. and Wolfsberg، نويسنده , , Laura E. and Reass، نويسنده , , David A. and Connors، نويسنده , , Michael A. and Bach، نويسنده , , Hong T. and Fassbender، نويسنده , , Michael E. and John، نويسنده , , Kevin D. and Birnbaum، نويسنده , , Eva R. and Nortier، نويسنده , , Francois M.، نويسنده ,
Abstract :
The spallation neutron flux produced from proton irradiation of rubidium chloride and gallium targets at the Los Alamos National Laboratory (LANL) Isotope Production Facility (IPF) was investigated using the activation foil technique and computational simulation. Routine irradiations have been found to produce fluxes as high as 1012 n cm−2 s−1, with approximately 50% of the total flux having energy in excess of 1 MeV. Measurements of activation foils are compared with the predicted radionuclide yield using nuclear excitation functions from MCNPX event generators, evaluated nuclear data, and the TALYS nuclear code. Practical application of the secondary neutron flux in the realm of radioisotope production is considered.
Keywords :
Fusion energy research , Spallation neutrons , Isotope Production , Proton irradiation
