Integrated Cross Sections of the Photo-Neutron Reactions Induced on \(^{197}\)Au with 60 \(\text{MeV}\) Bremsstrahlung

Abstract

Abstract. Seven photo-neutron reactions 197Au(γ,xn)197-xAu (with x=1-7) produced by the bremsstrahlung end-point energy of 60 MeV were identified. In this work, we focus on the measurement of integrated sections. Experiments were carried out based on the activation method in combination with off-line gamma-ray spectrometric technique. The integrated cross sections of the investigated reactions were determined relative to that of the monitoring reaction 197Au(γ,n)196Au. To validate the experimental results, theoretical predictions were also made using the computer code TALYS 1.9. The current integrated cross-sections of the 197Au(γ,xn)197-xAu reactions with 60 MeV bremsstrahlung end point energy are measured for the first time.

Measurement of the flux-weighted average cross section for the \(^{186}\)W\((\gamma,p)^{185}\)Ta reaction at the bremsstrahlung end-point energy of 70 MeV

“…In recent decades, both the well-developed electron linacs capable of generating bremsstrahlung photons with energies of tens or more than tens of MeV and the high-quality γ-ray measuring instruments have offered advantages for research on photonuclear reactions. The high-energy photons are able to produce nuclear reactions with a variety of complexity by emitting not only a single nucleon such as (γ, n) [3][4][5][6] or (γ, p) [6][7][8], but also multi-particle emission reactions such as (γ, xn) [9,10] or (γ,xnyp) with x, y ≥ 1 [11].…”