Abstract
The spatial distribution of neutron fluences in the extended uranium target (“Quinta” assembly) irradiated with 0.66 GeV proton, 4 AGeV deuteron and carbon beams was studied using the reactions with different threshold energy (Eth ). The data sets were obtained with 59 Co samples. The accumulation rates for the following isotopes: 60 Co (Eth 0 MeV), 59 Fe (Eth 3 MeV), 58 Co (Eth 10 MeV), 57 Co (Eth 20 MeV), 56 Co (Eth 32 MeV), 47 Sc (Eth 55 MeV), and 48 V (Eth 70 MeV) were measured with HPGe spectrometer. The experimental accumulation rates were compared with the predictions of the simulations with Geant4 code. Substantial difference between the reconstructed and the simulated data for the hard part of the neutron spectrum was analyzed.
Highlights
The use of proton beams for energy production in accelerator-driven systems (ADS) was extensively investigated [1]-[3] and the general opinion is that the optimal energy of proton beam lies in the range 1-3 GeV
Simulations performed using the code Geant4 in a quasi-infinite uranium target predict that one cannot improve the energetic efficiency of proton or deuteron beams by increasing the beam energy above 2-3 AGeV, but one can get a higher efficiency by accelerating heavier ions [6]
The spatial distribution of accumulated isotopes depends on the projectile type, initial energy and the threshold energy for the isotopes
Summary
The use of proton beams for energy production in accelerator-driven systems (ADS) was extensively investigated [1]-[3] and the general opinion is that the optimal energy of proton beam lies in the range 1-3 GeV. A more detailed analysis of particle distributions and spectra was realized by measuring the accumulation rates of isotopes with threshold energies from 0 to 70 MeV, using probes of 59Co placed at different positions inside the target. In this study the distribution of the accumulation rates of these isotopes in the uranium target “Quinta” irradiated by 0.66 GeV proton, 4 AGeV deuteron and carbon beams is presented.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
