The Study of (gamma, n) Reactions in Light Nuclei at Intermediate Photon Energy

[摘要] The work presented in this thesis describes an experimental study of (gamma,n) reactions on 16O and 6Li nuclei using 50-70 MeV tagged photons. At this photon energy range, the so-called intermediate energy region, the photon absorption mechanism is not quantitatively established, but it is thought that pion- exchange-current effects are important. At the Max-Lab tagged photon facility in Lund(Sweden) it is possible to measure both (gamma, N) and (gamma, N N) reactions where N is either proton or neutron. The (gamma,n) measurements, performed by the Glasgow-Lund collaboration, are unique to this facility. The present experiment was performed using the Glasgow-Lund time-of-flight (TOF) spectrometer where emitted neutrons were detected by two liquid scintillator arrays positioned at 45

[发布机构] University:University of Glasgow

[关键词] Nuclear physics and radiation, High energy physics