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Title: Disassembly time of deuterium-cluster-fusion plasma irradiated by an intense laser pulse

Abstract

Energetic deuterium ions from large deuterium clusters (>10 nm diameter) irradiated by an intense laser pulse (>10¹⁶ W/cm²) produce DD fusion neutrons for a time interval determined by the geometry of the resulting fusion plasma. We show an analytical solution of this time interval, the plasma disassembly time, for deuterium plasmas that are cylindrical in shape. Assuming a symmetrically expanding deuterium plasma, we calculate the expected fusion neutron yield and compare with an independent calculation of the yield using the concept of a finite confinement time at a fixed plasma density. The calculated neutron yields agree quantitatively with the available experimental data. Our one-dimensional simulations indicate that one could expect a tenfold increase in total neutron yield by magnetically confining a 10 - keV deuterium fusion plasma for 10 ns.

Authors:
 [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1221407
Alternate Identifier(s):
OSTI ID: 1198560
Report Number(s):
LA-UR-15-21646
Journal ID: ISSN 1539-3755; PLEEE8
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
Additional Journal Information:
Journal Volume: 92; Journal Issue: 1; Journal ID: ISSN 1539-3755
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; laser-cluster fusion; disassembly time; deuterium clusters

Citation Formats

Bang, W. Disassembly time of deuterium-cluster-fusion plasma irradiated by an intense laser pulse. United States: N. p., 2015. Web. doi:10.1103/PhysRevE.92.013102.
Bang, W. Disassembly time of deuterium-cluster-fusion plasma irradiated by an intense laser pulse. United States. https://doi.org/10.1103/PhysRevE.92.013102
Bang, W. Thu . "Disassembly time of deuterium-cluster-fusion plasma irradiated by an intense laser pulse". United States. https://doi.org/10.1103/PhysRevE.92.013102. https://www.osti.gov/servlets/purl/1221407.
@article{osti_1221407,
title = {Disassembly time of deuterium-cluster-fusion plasma irradiated by an intense laser pulse},
author = {Bang, W.},
abstractNote = {Energetic deuterium ions from large deuterium clusters (>10 nm diameter) irradiated by an intense laser pulse (>10¹⁶ W/cm²) produce DD fusion neutrons for a time interval determined by the geometry of the resulting fusion plasma. We show an analytical solution of this time interval, the plasma disassembly time, for deuterium plasmas that are cylindrical in shape. Assuming a symmetrically expanding deuterium plasma, we calculate the expected fusion neutron yield and compare with an independent calculation of the yield using the concept of a finite confinement time at a fixed plasma density. The calculated neutron yields agree quantitatively with the available experimental data. Our one-dimensional simulations indicate that one could expect a tenfold increase in total neutron yield by magnetically confining a 10 - keV deuterium fusion plasma for 10 ns.},
doi = {10.1103/PhysRevE.92.013102},
journal = {Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics},
number = 1,
volume = 92,
place = {United States},
year = {Thu Jul 02 00:00:00 EDT 2015},
month = {Thu Jul 02 00:00:00 EDT 2015}
}

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Cited by: 9 works
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Works referencing / citing this record:

Simulations of a polar molecule (sulfur dioxide) in a supersonic jet
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  • Chen, Guanglong; Boldarev, A. S.; Li, Xingjia
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