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Title: Extensions of the direct-semidirect model for calculating the high energy component of fast-nucleon induced gamma spectra

Abstract

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.

Authors:
Publication Date:
Research Org.:
Lawrence Livermore National Lab., CA (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
15006436
Report Number(s):
UCRL-ID-139090
TRN: US0400767
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 22 May 2000
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 74 ATOMIC AND MOLECULAR PHYSICS; ANGULAR DISTRIBUTION; CAPTURE; GAMMA SPECTRA; NEUTRON REACTIONS; NUCLEONS; PROTONS; RADIATIONS; STATISTICAL MODELS

Citation Formats

Dietrich, F S. Extensions of the direct-semidirect model for calculating the high energy component of fast-nucleon induced gamma spectra. United States: N. p., 2000. Web. doi:10.2172/15006436.
Dietrich, F S. Extensions of the direct-semidirect model for calculating the high energy component of fast-nucleon induced gamma spectra. United States. doi:10.2172/15006436.
Dietrich, F S. Mon . "Extensions of the direct-semidirect model for calculating the high energy component of fast-nucleon induced gamma spectra". United States. doi:10.2172/15006436. https://www.osti.gov/servlets/purl/15006436.
@article{osti_15006436,
title = {Extensions of the direct-semidirect model for calculating the high energy component of fast-nucleon induced gamma spectra},
author = {Dietrich, F S},
abstractNote = {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.},
doi = {10.2172/15006436},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {5}
}

Technical Report:

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