2022/10/09 by O. S. Deiev, I. S. Timchenko, Deiev, O. S. +15 · 1 citation
Physics and Astronomy · Engineering · #Nuclear Physics and Applications #X-ray Spectroscopy and Fluorescence Analysis #Particle accelerators and beam dynamics
paper · pdf · doi:10.48550/arxiv.2210.04324
In experiments on the electron linac LUE-40 of RDC "Accelerator" NSC KIPT, the flux-averaged cross-sections ⟨σ(E_\rmγmax)⟩_\rmexp of photonuclear reactions 100\rmMo(γ,n)99\rmMo, 27\rmAl(γ,x)24\rmNa, 93\rmNb(γ,n)92m\rmNb, 93\rmNb(γ,3n)90\rmNb, and 181\rmTa(γ,n)180g\rmTa were measured using the γ-activation technique. The theoretical flux-average cross-sections ⟨σ(E_\rmγmax)⟩_\rmth were computed using the partial cross-section σ(E) values from the TALYS1.9-1.95 codes and bremsstrahlung γ-flux calculated using GEANT4.9.2. Two different experimental setups were used in the experiments: an aluminum electron absorber and a deflecting magnet to clean the bremsstrahlung γ-flux from electrons. A comparison of the flux-average cross-sections measured for two experimental setups was performed. The possibility of using the reactions 100\rmMo(γ,n)99\rmMo, 27\rmAl(γ,x)24\rmNa, 93\rmNb(γ,n)92m\rmNb, 93\rmNb(γ,3n)90\rmNb, and 181\rmTa(γ,n)180g\rmTa as monitors of the bremsstrahlung γ-flux for the energy range 30-100 MeV was investigated.