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Title: Improved yield and control of spectra from high-intensity laser-generated neutron beams

Abstract

Abstract Kinetic modeling of laser-ion beam generation from the “break-out afterburner” (BOA) has been modeled for several deuteron-rich solid-density target foils. Modeling the transport of these beams in a beryllium converter shows as much as a fourfold increase in neutron yield over the present state of the art through the use of alternative target materials. Additionally, species-separation dynamics during the BOA can be exploited to control the hardness of the neutron spectra, of interest for, for example, enhancing penetrability in shielded material in active neutron interrogation settings.

Authors:
; ;
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1503184
Report Number(s):
LA-UR-16-25475
Journal ID: ISSN 0263-0346
DOE Contract Number:  
89233218CNA000001
Resource Type:
Journal Article
Journal Name:
Laser and Particle Beams
Additional Journal Information:
Journal Volume: 36; Journal Issue: 01; Journal ID: ISSN 0263-0346
Publisher:
Cambridge University Press
Country of Publication:
United States
Language:
English
Subject:
laser based neutron sources, active interrogation

Citation Formats

Albright, Brian J., Yin, Lin, and Favalli, Andrea. Improved yield and control of spectra from high-intensity laser-generated neutron beams. United States: N. p., 2018. Web. doi:10.1017/S0263034617000908.
Albright, Brian J., Yin, Lin, & Favalli, Andrea. Improved yield and control of spectra from high-intensity laser-generated neutron beams. United States. doi:10.1017/S0263034617000908.
Albright, Brian J., Yin, Lin, and Favalli, Andrea. Tue . "Improved yield and control of spectra from high-intensity laser-generated neutron beams". United States. doi:10.1017/S0263034617000908.
@article{osti_1503184,
title = {Improved yield and control of spectra from high-intensity laser-generated neutron beams},
author = {Albright, Brian J. and Yin, Lin and Favalli, Andrea},
abstractNote = {Abstract Kinetic modeling of laser-ion beam generation from the “break-out afterburner” (BOA) has been modeled for several deuteron-rich solid-density target foils. Modeling the transport of these beams in a beryllium converter shows as much as a fourfold increase in neutron yield over the present state of the art through the use of alternative target materials. Additionally, species-separation dynamics during the BOA can be exploited to control the hardness of the neutron spectra, of interest for, for example, enhancing penetrability in shielded material in active neutron interrogation settings.},
doi = {10.1017/S0263034617000908},
journal = {Laser and Particle Beams},
issn = {0263-0346},
number = 01,
volume = 36,
place = {United States},
year = {2018},
month = {1}
}