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Title: Nuclear EMP simulation for large-scale urban environments. FDTD for electrically large problems.

Abstract

In case of a terrorist nuclear attack in a metropolitan area, EMP measurement could provide: (1) a prompt confirmation of the nature of the explosion (chemical or nuclear) for emergency response; and (2) and characterization parameters of the device (reaction history, yield) for technical forensics. However, urban environment could affect the fidelity of the prompt EMP measurement (as well as all other types of prompt measurement): (1) Nuclear EMP wavefront would no longer be coherent, due to incoherent production, attenuation, and propagation of gamma and electrons; and (2) EMP propagation from source region outward would undergo complicated transmission, reflection, and diffraction processes. EMP simulation for electrically-large urban environment: (1) Coupled MCNP/FDTD (Finite-difference time domain Maxwell solver) approach; and (2) FDTD tends to be limited to problems that are not 'too' large compared to the wavelengths of interest because of numerical dispersion and anisotropy. We use a higher-order low-dispersion, isotropic FDTD algorithm for EMP propagation.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1]
  1. Los Alamos National Laboratory
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
DOE/LANL
OSTI Identifier:
1048844
Report Number(s):
LA-UR-12-24078
TRN: US201217%%183
DOE Contract Number:  
AC52-06NA25396
Resource Type:
Conference
Resource Relation:
Conference: JOWOG 43 ; 2012-08-21 - 2012-08-24 ; Los Alamos, New Mexico, United States
Country of Publication:
United States
Language:
English
Subject:
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE; 97 MATHEMATICAL METHODS AND COMPUTING; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ALGORITHMS; ANISOTROPY; ATTENUATION; DIFFRACTION; ELECTRONS; EXPLOSIONS; INCOHERENT PRODUCTION; NUCLEAR WEAPONS; REFLECTION; SIMULATION; URBAN AREAS; WAVELENGTHS

Citation Formats

Smith, William S, Bull, Jeffrey S, Wilcox, Trevor, Bos, Randall J, Shao, Xuan-Min, Goorley, John T, and Costigan, Keeley R. Nuclear EMP simulation for large-scale urban environments. FDTD for electrically large problems.. United States: N. p., 2012. Web.
Smith, William S, Bull, Jeffrey S, Wilcox, Trevor, Bos, Randall J, Shao, Xuan-Min, Goorley, John T, & Costigan, Keeley R. Nuclear EMP simulation for large-scale urban environments. FDTD for electrically large problems.. United States.
Smith, William S, Bull, Jeffrey S, Wilcox, Trevor, Bos, Randall J, Shao, Xuan-Min, Goorley, John T, and Costigan, Keeley R. Mon . "Nuclear EMP simulation for large-scale urban environments. FDTD for electrically large problems.". United States. https://www.osti.gov/servlets/purl/1048844.
@article{osti_1048844,
title = {Nuclear EMP simulation for large-scale urban environments. FDTD for electrically large problems.},
author = {Smith, William S and Bull, Jeffrey S and Wilcox, Trevor and Bos, Randall J and Shao, Xuan-Min and Goorley, John T and Costigan, Keeley R},
abstractNote = {In case of a terrorist nuclear attack in a metropolitan area, EMP measurement could provide: (1) a prompt confirmation of the nature of the explosion (chemical or nuclear) for emergency response; and (2) and characterization parameters of the device (reaction history, yield) for technical forensics. However, urban environment could affect the fidelity of the prompt EMP measurement (as well as all other types of prompt measurement): (1) Nuclear EMP wavefront would no longer be coherent, due to incoherent production, attenuation, and propagation of gamma and electrons; and (2) EMP propagation from source region outward would undergo complicated transmission, reflection, and diffraction processes. EMP simulation for electrically-large urban environment: (1) Coupled MCNP/FDTD (Finite-difference time domain Maxwell solver) approach; and (2) FDTD tends to be limited to problems that are not 'too' large compared to the wavelengths of interest because of numerical dispersion and anisotropy. We use a higher-order low-dispersion, isotropic FDTD algorithm for EMP propagation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {8}
}

Conference:
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