Extensions of the Direct-Semidirect Model for Calculating the High Energy Component of Fast-Nucleon Induced Gamma Spectra.

Dietrich, F. S.

Technical Information Center Oak Ridge Tennessee

关键词: Gamma spectra;    Nucleons;    Capture;    Protons;    Angular distribution;   

RP-ID  :  DE200415006436

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

This section reviews extensions and variations of the direct-semidirect (DSD) model for understanding the high-energy component of gamma spectra resulting from radiative capture of fast nucleons; i.e., the part of the spectrum that is not amenable to standard statistical model (Hauser-Feshbach) treatments. We describe recent results on the extension of the DSD model to unbound final states, including comparison with proton and neutron capture data. The importance of including convective-current magnetic radiation to explain proton capture angular distributions in the 30 MeV region is shown. We conclude with a brief discussion of a model closely related to the DSD, the pure-resonance model.