Abstract
The (p, γ) resonance is a good way to produce monoenergetic γ rays. It becomes an important tool for studying photonuclear reactions. In this work, 13C(p, γ)14N resonance is studied to produce 9.17 MeV γ ray using the 2 × 1.7 MV tandem accelerator at CIAE. The flux of 9.17 MeV γ was determined to be 2.3 × 105/s. 197Au photoneutron cross section was measured to be 45.4 ± 6.9 mb under the irradiation of 13C(p, γ)14N resonance γ -source. The value is close to the previous results. It certificates that we have developed an experimental method for photonuclear reaction study.
Highlights
Experimental studies of photonuclear reactions have opened the way for a variety of important applications
It is widely accepted that the bulk of the nuclei heavier than iron have been synthesized by neutron capture in the astrophysical r and s processes
Its (γ, n) cross section has been widely measured around the Giant Dipole Resonance (GDR) by several different methods in the last decades [17,18,19,20,21,22,23], and recently a very precise measurement was made in the entire energy range using a quasi-monochromatic γ-source produced in laser-induced Compton backscattering with relativistic electrons [21]
Summary
Experimental studies of photonuclear reactions have opened the way for a variety of important applications. The production mechanism for these so-called p-nuclei [6] is photodisintegration in the astrophysical γ process by successive (γ, n), (γ, p), and (γ, α) reactions The difficulty among these studies discussed above is that photonuclear cross-section data are scarce in Giant Dipole Resonance (GDR) energy range [7, 8], and especially there is a lack of data in some important cases. Its (γ, n) cross section has been widely measured around the GDR by several different methods in the last decades [17,18,19,20,21,22,23], and recently a very precise measurement was made in the entire energy range using a quasi-monochromatic γ-source produced in laser-induced Compton backscattering with relativistic electrons [21].
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